Reptile Calculators & Care Tools

These free reptile calculators and care tools turn your pet's weight, age and setup into practical numbers. Every tool runs in your browser, shows how it works and lists its sources.

Feeding

Snake Feeding Calculator

Prey size and feeding schedule from your snake’s weight.

  • Ball Python
  • Corn Snake

Lizard Insect Feeding Calculator

How many insects per feeding, how often, and what to buy each week.

  • Bearded Dragon
  • Leopard Gecko

Dubia Roach Colony Calculator

How many breeding females you need to feed your reptiles from your own colony.

  • Bearded Dragon
  • Leopard Gecko

Health & Growth

Calcium & Vitamin Schedule Generator

A printable 7-day calcium, D3 and multivitamin dusting schedule.

  • Bearded Dragon
  • Leopard Gecko
  • Crested Gecko

Reptile Age & Growth Estimator

Estimate age from length or weight, and check growth against normal ranges.

  • Bearded Dragon
  • Leopard Gecko
  • Ball Python

Habitat

Reptile Enclosure Size Calculator

Minimum and recommended tank size, plus a gallons-to-dimensions converter.

  • Bearded Dragon
  • Leopard Gecko
  • Ball Python

Reptile Temperature & Humidity Checker

Enter your readings to see what is too hot, too cold or just right.

  • Bearded Dragon
  • Leopard Gecko
  • Ball Python
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