Bathtub volume calculator

Alternative name: Bathtub size calculator

Answers the question: How many liters of water are in the bathtub?

If you have a bathtub or are considering buying one, you probably want to calculate how many liters or gallons it takes to fill it up. This bathtub calculator will help you find the size of your bathtub.


Bathtub volume: 64000 liters
Bathtub volume: 16907 gallons

Your exact bathtub construction might differ, and if so, please consider this result as an estimate.

Our calculations

At Calculatorian, we are keen to share our knowledge, be transparent and open to feedback. Here are the calculations used to create this calculator. If you find an error or deficiency, contact us and we'll fix it in an instant!

Bathtub volume was calculated like this:

Bathtub volume was calculated like this:

Variables used in this formula

l = Length of bathtub in meters
w = Width of bathtub in meters
d = Bathtub depth in meters