m³/h to GPM Converter
1 cubic meter equals 264.172 US gallons. Converting the hourly rate to per-minute gives a factor of 264.172 ÷ 60 = 4.40287 GPM per m³/h. This is the inverse of the GPM to m³/h...
Formula
Source: NIST | Last reviewed: June 7, 2026
Examples
1 m³/h
= 4.403 GPM (US)
1 m³/h = 4.403 GPM
10 m³/h
= 44.03 GPM (US)
100 m³/h
= 440.3 GPM (US)
Quick Reference Table
| m³/h | GPM |
|---|---|
| 1 | 4.4 |
| 5 | 22.01 |
| 10 | 44.03 |
| 50 | 220.14 |
| 100 | 440.29 |
| 500 | 2201.4 |
Where is this used?
Frequently Asked Questions
What is the inverse conversion factor?
1 GPM = 0.227125 m³/h. Use the GPM to m³/h converter for the reverse direction.
Is this for water or any fluid?
This is a volumetric flow conversion, so it applies to any fluid. It does not account for mass flow or density differences.
How does this relate to L/s?
1 m³/h = 0.27778 L/s. To convert m³/h to L/s, divide by 3.6.
Reviewed for accuracy
· Last reviewed: June 7, 2026
All calculations are for reference only. Always verify with manufacturer data and a qualified engineer for critical applications. Learn about our editorial process.