CONVERSION TOOLS

At Tanks Direct, we understand that choosing the right tank size and understanding capacity requirements can be challenging, which is why we've developed this water tank calculator to make your selection process straightforward and accurate. By providing these free tools alongside our extensive tank range, we're committed to supporting you throughout your entire selection process, helping you find the perfect water storage option that fits both your space constraints and capacity needs whilst saving you time and potential costly mistakes.

 

Our water tank volume calculator takes the guesswork out of determining exactly what capacity you need for your specific requirements, whilst our converters help you convert between different measurement units with precision. We know that every installation is different, and having access to reliable conversion tools means you can confidently plan your water storage system without worrying about ordering the wrong size or capacity.

Tank Volume & Conversion Tools

Use these free tools to convert between volume units, calculate the volume of a rectangular tank, and work out missing tank dimensions based on a required capacity.

Volume Unit Converter

Select any unit, enter a value, and the others will update automatically.

Volume Calculator

Enter the tank length, width and height in either centimetres or inches.

Tank Dimensions Calculator

Enter a required capacity in litres and any two dimensions. The third will be calculated.

Please enter any two of the following in either centimetres or inches:

Note: this calculator assumes a simple rectangular tank and does not allow for wall thickness, baffling, or other internal features. Results are approximate.