Mass Flow Rate Calculator

Mass Flow Rate Calculator: Convert Volume Flow to Mass Flow

Combustion calculations frequently need mass flow rather than volumetric flow, since chemical reactions and heat balances are governed by mass, not volume. This calculator converts a known volumetric flow rate into mass flow using gas density at actual conditions.

The Formula

Mass Flow = Density × Volumetric Flow

Worked Example

A gas with density 1.2 kg/m3 flows at 3.0 m3/s.

Mass Flow = 1.2 × 3.0 = 3.6 kg/s

How to Use This Calculator

1. Enter the gas density in kg/m3 at actual flowing conditions.
2. Enter the volumetric flow rate in m3/s.
3. Click Calculate to get the mass flow rate.

Related Calculations

Use with the Volumetric Flow Rate Calculator to convert back, or the Gas Density Calculator to find density first.