Corn snakes hatch at 10–15 in (25–38 cm) and about 8 g. Adults are usually 3–5 ft (91–152 cm) and 500–900 g, and most reach adult size at about 2–4 years (the RVC says usually within 5). For example, the calculator gives a 6-month-old 15–23 in (38–57 cm) and 33–80 g, and a 2-year-old 2 ft 6 in – 4 ft (76–122 cm) and 250–450 g.
Estimates only. Every corn snake grows at its own pace, mostly depending on how often it is fed. See a reptile vet if your snake is losing weight, refusing food or looks unwell.
How big do corn snakes get?
Corn snakes are medium-sized, slender snakes. Most healthy adults are 3 to 5 feet long (91–152 cm), which is the range given by ReptiFiles, and LafeberVet's veterinary information sheet gives a very similar 2.5–5 ft. Smithsonian's National Zoo lists the full adult range as 61–182 cm (2–6 ft), so both very small and very large adults exist. PetMD's vet-written care sheet puts adults at 4–6 ft and Reptiles Magazine says most reach 4–5.5 ft, while breeder Don Soderberg of South Mountain Reptiles gives an average of 3.5–4.5 ft.
Put together, the average corn snake size is about 4 ft (122 cm), and that is the figure this calculator treats as 100% of adult length. Weight is more variable than length: Kyiv Zoo gives adults 500–900 g (1.1–2 lb), and the Animal Diversity Web lists an average mass of 900 g. A corn snake of the same length as a ball python weighs far less, because its body is long and narrow. The Virginia Herpetological Society describes it as firm and muscular, "shaped like a breadloaf in cross section, flat on the venter".
Average corn snake size by source
| Source | Adult length | Notes |
|---|---|---|
| Smithsonian's National Zoo | 2–6 ft (61–182 cm) | Total range for adults |
| ReptiFiles (care reference) | 3–5 ft (0.9–1.5 m) | Average adults; 2 ft and 6 ft both possible |
| LafeberVet (vet information sheet) | 2.5–5 ft (0.8–1.5 m) | Adult length |
| PetMD care sheet (vet) | 4–6 ft | Adult length |
| Reptiles Magazine (Kathy Love) | 4–5.5 ft | "Most eventually reach" |
| South Mountain Reptiles (breeder) | 3.5–4.5 ft | Average adult |
| RVC Exotics Service (vet school) | Up to 150 cm (5 ft) | Usually reached within 5 years |
Adult corn snake size at a glance
- Hatchling: 10–15 in (25–38 cm) and about 8 g (Smithsonian, Virginia Herpetological Society).
- 1 year old: about 2 ft (60 cm) according to the RVC; 20 in – 2 ft 6 in (51–76 cm) and 60–150 g on our chart.
- 2 years old: 2 ft 6 in – 4 ft (76–122 cm), 250–450 g.
- Adult (4 years +): 3–5 ft (91–152 cm), 500–900 g.
- Record length: 72 in (1,829 mm, 6 ft) (Conant and Collins 1991, quoted by the Virginia Herpetological Society).
Corn snake size chart by age (growth chart)
This corn snake size chart shows the typical total length (nose to tail tip) and weight from hatching to adulthood. Use it to check that a young snake is on track, to plan enclosure upgrades, and to compare with the calculator above, which gives the same numbers for any age in between.
| Age | Length (males & females) | Weight (males & females) | Life stage | % of adult length |
|---|---|---|---|---|
| Hatchling | 10–15 in (25–38 cm) | 6–10 g (0.2–0.4 oz) | Hatchling | 26% |
| 3 months | 13–19 in (32–48 cm) | 20–45 g (0.7–1.6 oz) | Hatchling | 33% |
| 6 months | 15–23 in (38–57 cm) | 33–80 g (1.2–2.8 oz) | Juvenile | 39% |
| 9 months | 18 in – 2 ft 2 in (44–67 cm) | 47–115 g (1.6–4.1 oz) | Juvenile | 46% |
| 1 year | 20 in – 2 ft 6 in (51–76 cm) | 60–150 g (2.1–5.3 oz) | Juvenile | 52% |
| 18 months | 2 ft 2 in – 3 ft (66–91 cm) | 150–300 g (5.3–10.6 oz) | Sub-adult | 65% |
| 2 years | 2 ft 6 in – 4 ft (76–122 cm) | 250–450 g (8.8–15.9 oz) | Sub-adult | 81% |
| 3 years | 2 ft 10 in – 4 ft 8 in (86–142 cm) | 350–700 g (12.3–24.7 oz) | Adult | 94% |
| 4 years and older | 3–5 ft (91–152 cm) | 500–900 g (17.6–31.7 oz) | Adult | 100% |
No vet school or zoo publishes a month-by-month corn snake growth chart, so this chart joins sourced anchor points with straight lines. Hatchling size comes from the Smithsonian and ReptiFiles (10–15 in) and the Virginia Herpetological Society (7.8–8.3 g). The 12-month length uses the RVC's "around 60 cm (2 feet) within the first 12 months". The 18-month row reflects sexual maturity at 16–18 months (Animal Diversity Web) at roughly 75 cm and 250 g (Griswold 2001, cited on Wikipedia). Adult rows use 3–5 ft (ReptiFiles, LafeberVet) and 500–900 g (Kyiv Zoo). The 12- and 24-month weights are cross-checked against keeper growth charts, which vary widely. Males and females share one chart because sources disagree on which sex is bigger (see below).
Read as a corn snake growth chart, the curve has three phases. In the first year a snake goes from 10–15 in to about 2 ft. Between one and two years growth is still fast, and a 2-year-old usually measures 2 ft 6 in – 4 ft (76–122 cm), already 81% of the typical adult length on average. After about 3 years the line flattens into the adult range, and most snakes have reached their final size by 4 or 5 years (RVC).
Corn snake length by age
Corn snake length is the number most owners ask about, and it is also the easiest to get wrong, because a snake rarely lies straight. On the chart a 3-month-old is 13–19 in (32–48 cm), a 6-month-old 15–23 in (38–57 cm) and an 18-month-old 2 ft 2 in – 3 ft (66–91 cm). So how long do corn snakes get by the time they are fully grown? Usually 3–5 ft. Lengths outside the shaded band are not automatically a problem: genetics and feeding move individual snakes up or down by many inches.
Corn snake weight chart: how much should a corn snake weigh?
Weight changes more smoothly than length and is easier to measure, so a corn snake weight chart is the best tool for tracking growth from month to month. ReptiFiles recommends weighing your snake monthly with a kitchen scale to see whether the feeding schedule is working. This chart shows the corn snake weight by age from the size chart, with the middle of each range as a "typical" weight.
| Age | Weight range | Typical | Ounces | Pounds |
|---|---|---|---|---|
| Hatchling | 6–10 g | 8 g | 0.2–0.4 oz | 0–0 lb |
| 3 months | 20–45 g | 32 g | 0.7–1.6 oz | 0–0.1 lb |
| 6 months | 33–80 g | 57 g | 1.2–2.8 oz | 0.1–0.2 lb |
| 1 year | 60–150 g | 105 g | 2.1–5.3 oz | 0.1–0.3 lb |
| 18 months | 150–300 g | 225 g | 5.3–10.6 oz | 0.3–0.7 lb |
| 2 years | 250–450 g | 350 g | 8.8–15.9 oz | 0.6–1 lb |
| 3 years | 350–700 g | 525 g | 12.3–24.7 oz | 0.8–1.5 lb |
| 4 years + | 500–900 g | 700 g | 17.6–31.7 oz | 1.1–2 lb |
So how much should a corn snake weigh? A healthy adult usually weighs between 500 and 900 g, and many keepers find their own snakes at the lower end. Weight depends on length as well as age: a 3 ft adult will be much lighter than a 5 ft one. A hatchling of about 8 g reaches roughly 60–150 g by its first birthday and 250–450 g at 2 years. That steep rise between one and four years is where overfeeding most easily turns into obesity, so check body shape as well as the number on the scale.
How to weigh a corn snake
- Put a plastic tub or box with a lid on a digital kitchen scale and zero it (tare).
- Place the snake inside, close the lid and read the weight in grams.
- Weigh before a meal rather than just after one, so a recent meal doesn't add a few grams.
- Write the date and weight down. One reading means little; a trend over several months tells you whether your snake is growing, holding steady or losing weight.
How big can a corn snake get? Biggest corn snakes
How big can a corn snake get at the very top end? The record total length is 72 inches (1,829 mm), or 6 ft. That figure comes from the standard Peterson field guide by Conant and Collins (1991), as quoted by the Virginia Herpetological Society, and it matches the 182 cm upper limit given by Smithsonian's National Zoo. ReptiFiles also notes that adults as large as 6 ft are possible.
The biggest corn snake sizes are rare. In Virginia, the largest snake measured by the Virginia Herpetological Society was 1,440 mm (56.7 in) long, with a snout–vent length of 1,245 mm (49 in). No recognised record exists for the heaviest corn snake, and we could not find a reliable published figure. A very heavy corn snake is more likely to be overweight than unusually large. Sellers who advertise "giant" corn snakes are making a marketing claim; ReptiFiles' advice is to ask about the parents, because a snake tends to end up near its parents' size.
Corn snake full grown size: male vs female
For corn snake full grown size, the sex of the snake matters much less than in ball pythons. The best field data come from the Virginia Herpetological Society. Adult males had an average snout–vent length of 869.8 mm and adult females 868.0 mm: essentially identical. Males did reach a longer maximum total length in Virginia (1,440 mm against 1,114 mm), and their tails were slightly longer on average (15.2% of total length against 14.5%).
| Source | What it says about size by sex |
|---|---|
| Virginia Herpetological Society (field data) | Males and females similar in body size; longest male 1,440 mm vs longest female 1,114 mm in Virginia |
| ReptiFiles | "No significant size difference between the sexes" |
| RSPCA | Adults grow to around 150 cm, "with males normally smaller" |
| ReptiFiles (breeding advice) | Males tend to resemble their father's size, females their mother's |
Because the sources point in different directions, the calculator uses one full grown corn snake size range for both sexes: 3–5 ft and 500–900 g. Choosing male or female still personalises the result, and the safest assumption for planning an enclosure is the upper end. Corn snake full size (sometimes searched as "cornsnake full size") is therefore best described as 3–5 ft for males and females alike, with occasional 6-footers. For male vs female corn snake size, parentage is a better clue than sex: ask the breeder how big the parents are.
Baby, hatchling and juvenile corn snake size
Hatchling corn snake size is about 10–15 in (25–38 cm), according to Smithsonian's National Zoo and ReptiFiles. Reptiles Magazine gives 8–12 in and the Animal Diversity Web 20–35 cm. The Virginia Herpetological Society measured hatchlings averaging 296.6 mm (11.7 in) total length and 7.8–8.3 g. Hatchlings look different from adults: the Virginia society describes juveniles with chocolate-brown blotches on a grey to reddish-orange body, and the Smithsonian notes that young snakes lack the brighter adult colours.
Baby corn snake size through the first six months rises from about 10–15 in to 15–23 in (38–57 cm) on our chart, while weight climbs from about 8 g to 33–80 g. Hatchlings are thin and very good at escaping, which is why ReptiFiles suggests a secure enclosure with tight hides at this stage.
Juvenile corn snake size, from about 6 to 18 months, runs from 15–23 in (38–57 cm) up to 2 ft 2 in – 3 ft (66–91 cm). The RVC says corn snakes are about 20 cm (8 in) as juveniles and reach around 60 cm (2 ft) within the first 12 months. So a typical 1 year old corn snake size is about 2 ft; our chart gives 20 in – 2 ft 6 in (51–76 cm) and 60–150 g. At this age ReptiFiles' schedule feeds hatchlings every 5–7 days; the corn snake feeding chart has prey sizes for every weight.
How fast do corn snakes grow and when do they stop growing?
How fast do corn snakes grow? Fastest in the first year, when the RVC's figures imply a jump from about 20 cm to about 60 cm, roughly tripling in length. Weight grows even faster in relative terms: from about 8 g to around 105 g on our chart, more than ten times as heavy. By 12 months a typical corn snake has reached about 52% of the average adult length.
When do corn snakes stop growing? ReptiFiles says captive corn snakes usually reach adulthood at around 1.5–2 years, and the Animal Diversity Web puts sexual maturity at 16–18 months. Smithsonian's National Zoo gives a wider 18–36 months for maturity. The RVC adds that the eventual adult size, up to 150 cm, is "usually within 5 years". In practice, most corn snakes are close to their final length by 3–4 years, and after that the year-to-year change is small.
What affects corn snake growth?
- Feeding frequency and prey size: the biggest factor you control. ReptiFiles advises choosing a schedule that keeps a hatchling or juvenile growing, then one that keeps an adult at a steady weight, and checking with monthly weigh-ins.
- Temperature: snakes digest and grow only when they can warm up. The RSPCA recommends a basking zone of 28–30 °C with a cool end of 20–24 °C, and PetMD gives about 85 °F at the warm end and the low 70s °F at the cool end.
- Genetics and bloodline: ReptiFiles notes that a snake tends to grow to a size similar to its parents. Some lines are smaller: Wikipedia describes Miami-phase corn snakes as usually smaller, and keeper site reptile.guide says cinder corn snakes are often slimmer.
- Size, not age, drives maturity: research cited on Wikipedia (Griswold 2001) found that corn snakes reach sexual maturity by size rather than by age, at roughly 75 cm (30 in) or 250 g. A well-fed snake reaches that size sooner than a sparingly fed one.
- Health and husbandry: stress, a missing hide, wrong temperatures or illness can all put a snake off its food (ReptiFiles), and a snake that skips meals grows more slowly.
How old is my corn snake? Estimating age from length
If your snake came from a rescue, a previous owner or a shop without records, its size is the best clue to its age while it is still growing. Switch the calculator to Size → age, enter the length, the weight or both, and it reads the growth chart backwards. The best estimate is the age at which a typical snake reaches that size. The likely range runs from how early a fast grower gets there to how late a slow grower does. This is the idea behind any corn snake age by length table:
| Length | Best estimate | Likely range |
|---|---|---|
| 12 in (30 cm) | about 0 weeks | under 2 months |
| 16 in (41 cm) | about 3 months | 3 weeks – 7 months |
| 20 in (51 cm) | about 7 months | 4–12 months |
| 24 in (61 cm) | about 11 months | 7–16 months |
| 30 in (76 cm) | about 17 months | 12 months – 2 years |
| 36 in (91 cm) | about 22 months | 18 months or older |
| 42 in (107 cm) | about 2.5 years | 21 months or older |
| 48 in (122 cm) | Adult-sized | Exact age can't be told |
| 54 in (137 cm) | Adult-sized | Exact age can't be told |
| Weight | Best estimate | Likely range |
|---|---|---|
| 8 g (0.3 oz) | about 0 weeks | under 2 weeks |
| 25 g (0.9 oz) | about 2 months | 6 weeks – 4 months |
| 50 g (1.8 oz) | about 5 months | 3–10 months |
| 100 g (3.5 oz) | about 11 months | 8–15 months |
| 200 g (7.1 oz) | about 17 months | 14–21 months |
| 300 g (10.6 oz) | about 22 months | 18 months – 2.5 years |
| 450 g (15.9 oz) | about 2.6 years | 2–3.7 years |
| 600 g (21.2 oz) | Adult-sized | Exact age can't be told |
For example, a 24-inch corn snake is most likely about 11 months old (7–16 months), and a 36-inch snake about 22 months (18 months or older). A 100 g snake is probably 8–15 months old. If you enter both and they agree, the range narrows; if they disagree, as with a 30-inch snake that weighs only 100 g, the calculator says so and widens the range (12–15 months), because a long, light snake may be underweight.
The limits of estimating age from size
- Adults can't be aged by size. At 48 in, a corn snake is in the adult range: it could be 4 or 14 years old, so the calculator reports "adult-sized" instead of guessing (best estimate 4 years+).
- Feeding history changes everything. A fast-fed snake can be the size of a sparingly fed snake twice its age.
- Measure carefully. Lay a piece of string along the body from nose to tail tip, then measure the string; or photograph the snake beside a tape measure.
- Records beat estimates. A hatch date from the breeder is the only exact answer. For an older snake, see our corn snake lifespan calculator for what its age means in human years.
Corn snake tank size by size and age
The right corn snake tank size depends on the snake's length more than its age. Two modern rules are easy to apply. The RSPCA says an adult's enclosure should be at least the snake's full length, and a third of its length wide and high. ReptiFiles prefers an enclosure as long as the snake, half its length wide and at least 2 ft high, with an absolute minimum of 48 × 24 × 24 in (120 × 60 × 60 cm) for adults; the RVC recommends the same 48 × 24 × 24 in minimum. This corn snake tank size by age table puts the guidance side by side:
| Stage | Typical length | Current recommendation | Older guidance |
|---|---|---|---|
| Hatchling (0–6 months) | 10–23 in (25–57 cm) | Small, secure grow-out enclosure, or an adult-sized one with many tight hides (ReptiFiles). RSPCA rule for a 15 in snake: 15 × 5 × 5 in | 10+ gallons (PetMD); a shoebox-sized vivarium for the first months (Reptiles Magazine) |
| Juvenile (6–18 months) | 15–36 in (38–91 cm) | RSPCA rule for a 30 in snake: 30 × 10 × 10 in; ReptiFiles' preferred rule: 30 × 15 × 24 in | 10+ gallons (PetMD) |
| Sub-adult (18 months – 3 years) | 26–56 in (66–142 cm) | Move to the adult size: at least 48 × 24 × 24 in (120 × 60 × 60 cm) (ReptiFiles, RVC) | 20–30 gallons (BGSU Herpetarium) |
| Adult (about 4 ft) | 3–5 ft (91–152 cm) | 48 × 24 × 24 in minimum (ReptiFiles, RVC); RSPCA rule for 48 in: 48 × 16 × 16 in | 30 gallons (LafeberVet); 30–40+ gallons (PetMD) |
| Large adult (5 ft) | 5 ft (152 cm) | RSPCA: 150 × 50 × 50 cm (60 × 20 × 20 in); ReptiFiles' rule: 60 × 30 × 24 in | A 50-gallon long terrarium (Reptiles Magazine) |
20 gallons or 4 × 2 × 2 ft? Why the advice disagrees
Ask what size tank for a corn snake and you will get answers from 20 gallons to 4 × 2 × 2 ft. Older care sheets set a minimum by aquarium size: the BGSU Herpetarium lists a 20–30 gallon aquarium, LafeberVet's 2012 sheet a 30-gallon minimum, and PetMD 30–40+ gallons for adults. Newer welfare-based guidance asks for more room so that a snake can stretch out fully and climb: the RVC, ReptiFiles and the RSPCA all base the minimum on the snake's length, and a Swiss welfare standard quoted by ReptiFiles sets the floor at 0.7 × the snake's length by 0.5 × its length. A 48 × 24 × 24 in enclosure holds far more than a standard 30-gallon tank, which is usually around 3 ft long.
We follow the newer guidance for adults: a 4-ft snake can't stretch out in a 3-ft tank. For young snakes, ReptiFiles says a smaller, secure "grow-out" enclosure is fine for the first year, or you can use the adult enclosure straight away if it has plenty of tight hides, because hatchlings instinctively avoid open spaces. In Age → size mode, the calculator shows the RSPCA minimum for your snake's expected length plus the long-term adult corn snake enclosure size.
Signs your corn snake is underweight or overweight
Size charts tell you whether a snake is on track for its age; body shape tells you whether its weight is healthy. ReptiFiles calls obesity "an alarmingly common problem in pet corn snakes" and points out that corn snakes are supposed to be slender, so a body shape that looks normal for a python is too heavy for a corn snake. Signs of an overweight corn snake listed by ReptiFiles include:
- wrinkled or folded scales, or skin visible between the scales;
- weight "puddling" towards the belly, and a squishy rather than firm body;
- a segmented look, or "love handles" forming in front of the cloaca (vent).
The causes ReptiFiles gives are inactivity, fatty or overly large prey, and feeding too often. Underweight snakes show the opposite: ReptiFiles' general snake body-condition guidance (written for ball pythons) says a sharply visible, ridged spine means a snake isn't eating enough. Weigh monthly, and see a reptile vet if your snake is losing weight, keeps refusing food (ReptiFiles treats two or more refused meals as appetite loss) or looks thin. The RVC recommends a health check every year for pet reptiles. ReptiFiles stresses that the special feeding schedules for overweight or underweight adults should only be used after a vet's diagnosis. This is general information, not a diagnosis.
Corn snake size compared with other pet snakes
If you are choosing a first snake, size is a big part of the decision. Here is how corn snakes compare with two other popular pet snakes:
| Snake | Adult length | Adult weight | Build |
|---|---|---|---|
| Corn snake | 3–5 ft (91–152 cm) | 500–900 g (Kyiv Zoo; ADW average 900 g) | Slender, climbs well (ReptiFiles, LafeberVet) |
| Ball python | 3–5 ft (males 3–4, females 4–5; Arbor View) | About 900–2,500 g (our ball python chart) | Thick-bodied python |
| Boa constrictor | Up to 6 ft (males about 4 ft, females about 5 ft; PetMD) | Not given by PetMD | Heavy-bodied; needs much more space and food |
For corn snake vs ball python size, the two are similar in length, but a ball python is much heavier. A 4-ft corn snake might weigh 500–900 g, while a 4-ft female ball python usually weighs 1,200 g or more, so it needs bigger prey but climbs much less. A boa constrictor is longer and far heavier again. Our ball python size by age calculator has the full growth chart for comparison.
How this corn snake size calculator works
% of adult size = typical length ÷ 48 in (4 ft) · Enclosure = RSPCA rule (length × ⅓ × ⅓) now, 48 × 24 × 24 in for adults
Size → age: best estimate = age when a typical snake reaches that size · range = ages when the fastest and slowest growers do
In Age → size mode, the calculator converts weeks or years to months and reads the size chart above, drawing a straight line between chart points, so a 15-month-old gets a range halfway between the 12- and 18-month rows. It reports the expected length in feet, inches and centimetres, the weight in grams and ounces, the growth stage, the percentage of the 4-ft average adult length, an enclosure suggestion and the feeding interval from ReptiFiles' schedule for a snake of that size. For prey sizes, use the corn snake feeding calculator.
In Size → age mode it runs the chart in reverse. When the best estimate is 3 years or more and the snake is inside the adult range, it says the snake is adult-sized and doesn't give an exact age. Lengths under 8 in or over 72 in (the record), and weights under 5 g or over 1,500 g, are treated as likely measuring or unit mistakes. Wondering which colour or pattern your snake is? The corn snake morph explorer covers 28 morphs. Every result is an estimate; your reptile vet is the right person for health questions.
Frequently asked questions
How big do corn snakes get?
Most adults are 3–5 ft (91–152 cm) long (ReptiFiles, LafeberVet) and weigh about 500–900 g (Kyiv Zoo). Smithsonian's National Zoo gives a full range of 2–6 ft. Our calculator gives 3–5 ft (91–152 cm) and 500–900 g (17.6–31.7 oz) for adults.
How big can a corn snake get?
The record total length is 72 in (1,829 mm), or 6 ft (Conant and Collins 1991, via the Virginia Herpetological Society). Snakes that big are rare.
How big is a 1 year old corn snake?
About 2 ft (60 cm) according to the RVC. Our chart gives 20 in – 2 ft 6 in (51–76 cm) long and 60–150 g (2.1–5.3 oz).
How big is a baby corn snake?
Hatchlings are about 10–15 in (25–38 cm) long and 7.8–8.3 g (Smithsonian, Virginia Herpetological Society). At 6 months a baby corn snake is usually 15–23 in (38–57 cm) and 33–80 g.
When do corn snakes stop growing?
Most reach adulthood at about 1.5–2 years (ReptiFiles) and are close to final size by 3–4 years; the RVC says the eventual size of up to 150 cm is usually reached within 5 years.
How fast do corn snakes grow?
Fastest in the first year: from about 20 cm to about 60 cm (RVC), and from about 8 g to around 105 g on our chart. Growth slows after 2 years.
How much should an adult corn snake weigh?
Usually 500–900 g (1.1–2 lb) (Kyiv Zoo); the Animal Diversity Web gives an average of 900 g. Longer snakes weigh more, so check body shape too.
How long is a full grown corn snake?
A full grown corn snake is usually 3–5 ft long; occasional snakes reach 6 ft. Our adult row is 3–5 ft (91–152 cm).
Are male or female corn snakes bigger?
Sources disagree. Virginia field data show males and females with almost identical body length, though the longest males were longer; ReptiFiles says there is no significant difference, while the RSPCA says males are normally smaller.
What size tank does a corn snake need?
At least 48 × 24 × 24 in (120 × 60 × 60 cm) for an adult (ReptiFiles, RVC). The RSPCA rule is an enclosure as long as the snake and a third of its length wide and high.
Is a 20 gallon tank big enough for a corn snake?
Only for a young snake. Older care sheets list 20–30 gallons for adults, but current guidance from the RVC, ReptiFiles and the RSPCA asks for an enclosure at least as long as the snake, about 4 × 2 × 2 ft for most adults.
How old is my corn snake?
While it is growing, length and weight give a range: a 24-inch corn snake is probably 7–16 months old and a 100 g snake 8–15 months. Once it is adult-sized, its exact age can't be estimated from size.
How long do corn snakes get compared with ball pythons?
About the same length, 3–5 ft, but corn snakes are much slimmer: adults weigh about 500–900 g, against roughly 900–2,500 g for ball pythons.
Why is my corn snake so small?
Small parents, a slow feeding schedule, low temperatures, stress or illness can all slow growth. If it is thin or refusing food, see a reptile vet.
This calculator gives an estimate for education and fun. Every pet ages differently — for health decisions, talk to your veterinarian.