Volume of a 100 x 50 x 50 cm Reef Aquarium
A 100 x 50 x 50 cm reef aquarium holds approximately 250 litres of water.
How to use this tool
- Measure the internal length, width, and height of your tank.
- Enter the water fill height (not the tank height).
- The volume is shown in both litres and US gallons.
Knowing your reef tank's exact volume is essential for calculating salt mix, dosing, and equipment sizing.
Frequently asked questions
- Why does the volume differ from what's printed on my tank?
- Manufacturers typically quote gross (external) volume. Internal dimensions and the actual water fill level are smaller, giving a lower real volume. Always use your own measurements for accurate dosing.
- How do I convert litres to US gallons?
- Divide litres by 3.785 to get US gallons (1 US gallon = 3.785 L).