Work out volume for vertical, horizontal or rectangular tanks, at full or part level.
How it works
Vertical and rectangular tanks scale by depth. Horizontal cylinders use circular-segment area, so level is not linear with volume.
Before you order
- Measure inside dimensions, since shell thickness matters on small tanks.
- Ends of horizontal tanks are often curved, so a full capacity may be slightly more than this flat-end figure.
- Mark a dipstick from the results so you can read level later.
Common questions
Why is half-height not always half volume?
For horizontal tanks it is exact only at the midline. Below or above that, volume changes with the shape of the circle.
Is this rated for fuel tanks?
It gives volume only. Fuel storage has its own code requirements.