Pocket VetSnake / reptile feeding calculator
Snakes and many reptiles do best with prey around 10–15% of their body weight, fed at intervals that depend on age. Enter the weight and life stage for a starting guide.
Frequently asked
How big should a snake's prey be?
A common rule is prey around 10–15% of the snake's body weight, and no wider than the snake's widest point. Body condition matters more than a strict number — adjust over time.
How often should I feed my snake?
Hatchlings every 4–5 days, juveniles weekly, and adults every 10–14 days are typical starting points, but this varies widely by species. Confirm with an exotics vet or species care sheet.
Calculations use published formulas and are informational only — not a substitute for veterinary care or a formulary. When in doubt, contact your vet.