Convert Cubic metres per hour to US gallons per second
Convert Cubic metres per hour (m³/h) to US gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = m³/h × 0.07338112566
About Cubic metres per hour
The cubic metre per hour (m³/h) equals 1/3600 m³/s ≈ 2.778×10⁻⁴ m³/s, the dominant volumetric flow unit in European process engineering, HVAC, and water treatment. Pump datasheet curves, heat-exchanger sizing software, and wastewater-treatment design all use m³/h as the standard. A domestic water pump runs at 3-8 m³/h; a municipal WWTP inlet pump handles 500-5 000 m³/h. 1 m³/h ≈ 2.778×10⁻⁴ m³/s = 1 000 L/h.
About US gallons per second
The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 L/min.
Quick Reference Table
| Cubic metres per hour (m³/h) | US gallons per second (gal/s) |
|---|---|
| 1 m³/h | 0.0733811 gal/s |
| 2 m³/h | 0.146762 gal/s |
| 5 m³/h | 0.366906 gal/s |
| 10 m³/h | 0.733811 gal/s |
| 25 m³/h | 1.83453 gal/s |
| 50 m³/h | 3.66906 gal/s |
| 100 m³/h | 7.33811 gal/s |