Convert kg/h to m³/min or reverse volumetric flow to mass flow using fluid density, with common fluid presets and related metric flow-rate conversions.
Quick Overview
kg/h to m³/min conversion changes a mass flow rate into a volumetric flow rate using density.
The formula is:
m³/min = kg/h ÷ (ρ × 60)
- Water near 20°C: 998 kg/m³ (approximately)
- Diesel fuel: 830 kg/m³
- Gasoline: 740 kg/m³
- Ethanol: 789 kg/m³
- Crude oil: 870 kg/m³
- Dry air near 20°C and 1 atm: 1.204 kg/m³ (approximately)
For example, 1000 kg/h at a custom density of 1000 kg/m³ equals about 0.0167 m³/min.
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kg/h to m³/min Formula
The following formula is used to convert a mass flow rate in kilograms per hour to a volumetric flow rate in cubic meters per minute.
Variables:
- m³/min is the volumetric flow rate in cubic meters per minute
- kg/h is the mass flow rate in kilograms per hour
- ρ is the density of the fluid in kilograms per cubic meter
- 60 converts hours to minutes
To calculate the volumetric flow rate, divide the mass flow rate by the fluid density to obtain cubic meters per hour, then divide by 60 to convert the result to cubic meters per minute.
What is kg/h to m³/min Conversion?
kg/h to m³/min conversion is the process of changing a mass flow rate into a volumetric flow rate. Because volume depends on how dense a fluid is, the same mass flow can represent very different volumetric flow rates for water, fuel, oil, or air. This is why density is required whenever you convert between these two types of flow units.
In engineering, process control, pumping systems, and fluid handling applications, mass flow and volumetric flow are often used side by side. Converting between them allows you to compare specifications, interpret process data, and match equipment ratings expressed in different units.
How to Convert kg/h to m³/min?
The following steps outline how to convert kilograms per hour to cubic meters per minute.
- First, determine the mass flow rate in kilograms per hour (kg/h).
- Next, determine the fluid density in kilograms per cubic meter (kg/m³).
- Divide the mass flow rate by the density to convert from kg/h to m³/h.
- Finally, divide the result by 60 to convert from m³/h to m³/min.
- Check your answer using the calculator above.
Example Problem:
Use the following values as an example problem to test your knowledge.
Mass Flow Rate = 6000 kg/h
Fluid Density = 1000 kg/m³
m³/min = 6000 ÷ (1000 × 60) = 0.1 m³/min
kg/h to m³/min Conversion Table
The table below gives illustrative conversions for a 1000 kg/h mass flow rate using the stated rounded densities and m³/min = kg/h ÷ (ρ × 60). Select custom density to reproduce a row exactly.
| Fluid | Typical Density ρ (kg/m³) | 1000 kg/h in m³/min |
|---|---|---|
| Water | 1000 | 0.0167 m³/min |
| Diesel Fuel | 830 | 0.0201 m³/min |
| Gasoline | 740 | 0.0225 m³/min |
| Ethanol | 789 | 0.0211 m³/min |
| Crude Oil | 870 | 0.0192 m³/min |
| Air (20°C, 1 atm) | 1.2 | 13.89 m³/min |
These table densities are illustrative assumptions, not certified fluid properties. The calculator uses 998 kg/m³ for water near 20°C and 1.204 kg/m³ for dry air near 20°C and 1 atm; these differ slightly from the table’s rounded values. Fuel, crude-oil and seawater density depends on composition as well as temperature and pressure. Enter the actual measured density when precision matters.
