Turtle Tank Size calculator

Created By : Vaibhavi Kumari

Reviewed By : Phani Ponnapalli

Last Updated : May 01, 2023

Our Turtle Tank Size Calculator is useful to know recommended tank size for growing turtles. You just need to enter the turtle's length, which turtle's species can grow up to, select the turtle's species name and press the calculate button to know what size your turtle requires.

Your turtle's species
My turtle's length
Recommended tank size in

Turtle Tank Size Calculator: Turtle is one of the most interesting pet that every pet lover looks for, as they can eat, swim, bask and stay in their tanks all day. If are you a new turtle parent looking to buy a tank and confused about the tank size? Then don't worry, this free Turtle Tank Size Calculator help you.

The turtle tank size depends on multiple factors such as the species of the turtle, the turtle's length, and so on. A turtle's tank is not just where they live but their entire existence. Get to know how large can my turtle grows, the turtle tank size formula, and how to set up a turtle tank details in the following sections.

FAQs on Turtle Tank Size Calculator

1. What size tank do I need for 2 turtles?

In general, the accepted minimum for housing a turtle is 10 gallons.38 litres of water per inch of shell length. So, 2 turtles require 20 gallons/76 litres of water to swim.

2. How to use Turtle Tank Size Calculator?

Select the turtle species and enter required details in the mentioned input fields and tap on the calculate button to get the required turtle tank size as output.

3. Do turtles need a heat lamp?

Yes, turtles need a heat lamp when they are kept indoors.

4. How big of a tank does my turtle require?

Pet turtles normally need a tank size of 55 to 100 gallons based on their species. A good thumb rule to follow while buying a turtle tank is that the tank should have 10 gallons for every inch of your turtle's shell length.

How to Find Turtle Tank Size?

It is very easy to calculate the turtle's tank size using our free tool. Or you can follow the basic rule that a turtle required at least 10 gallons of tank volume for one inch of shell length. Using this rule, you can buy a suitable tank for your turtle.

The turtle tank size formula is here:

Tank Size (gallons) = Turtle size (in) * 10 gallons

How to set up a New Turtle Tank?

The following are the basic things you need to provide to make your turtle happy.
Filters: Turtles release a large amount of waste daily, so provide a good quality filter in the tanks for good health.

  • Lighting and Heating Lamps: Turtles need daylight for at least 12 hours to strengthen their shell and bone growth, and keep warm.
  • Basking Area: It is a place where turtles can climb to warm up and absorb their much-needed UVA and UVB light.
  • Water Depth: Few turtles are semi-aquatic. The accepted depth of water should be 2 to 3 times the length of their shell.

How Large Can My Turtle Grow?

The turtle's size is mainly based on its species. The general measurements are here:

  • Mississippi Map Turtle: 6-10 inches (15-25 cm)
  • Eastern Box Turtle: 4-7 inches (10-18 cm)
  • Musk Turtle: 3-5 inches (8-13 cm)
  • Eastern Box Turtle: 4-7 inches (10-18 cm)
  • Wood Turtle: 5-9 inches (13-23 cm)
  • Western Painted Turtle: 7-8 inches (18 -20 cm)