Turtle Tank Size Calculator
Find the minimum tank size for a turtle.
Aquatic turtles need roughly 10 gallons of water per inch of shell.
The math behind it
minimum tank (gallons) ≈ shell length (in) × 10. Bigger is always better.
Worked example
6 in shell → ~60 gallons.
FAQ
Multiple turtles?
Add about half the requirement for each additional turtle.