Fuel Volume Flow Calculator

Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer Last updated: July 25, 2026

📚 Confused about how this is calculated? Read the full The Fuel That Grows When Warm: Thermal Expansion →

Converting Metered Mass Into Volume

Some fuels are metered by weight, but tank sizing, pump selection, and pipeline design are usually specified in volumetric terms. This calculator converts a mass flow into the corresponding volume flow using fuel density.

The Formula

Volume Flow = Mass Flow / Fuel Density

Worked Example

8,500 kg/hr of fuel oil at a density of 850 kg/m3:

Volume Flow = 8,500 / 850 = 10 m3/hr

How to Use This Calculator

Enter the Mass Flow rate.
Enter the Fuel Density at supply temperature.
Select Calculate to get volumetric flow.

Related Calculations

Need to go the other direction? See the Fuel Mass Flow Calculator, or check duct velocity in the Combustion Air Velocity Calculator.