EngiRef / Flow rate conversion
Convert Gallons/minute (US) to Cubic meters/hour (gpm to m³/h)
1 gpm = 0.227124707 m³/h. Convert gallons/minute (US) to cubic meters/hour with the exact factor, a common-values table and a free converter.
Conversion factor
m³/h = gpm × 0.227124707
1 gpm = 0.227124707 m³/h
Multiply by 0.227124707 m³/h to go from gallons/minute (US) to cubic meters/hour, or divide by it to come back. The factor and every value below are computed by the same converter that runs at /convert, so this page and the tool cannot disagree.
gpm to m³/h table
| Gallons/minute (US) (gpm) | Cubic meters/hour (m³/h) |
|---|---|
| 1 gpm | 0.227124707 m³/h |
| 2 gpm | 0.454249414 m³/h |
| 5 gpm | 1.13562354 m³/h |
| 10 gpm | 2.27124707 m³/h |
| 20 gpm | 4.54249414 m³/h |
| 50 gpm | 11.3562354 m³/h |
| 100 gpm | 22.7124707 m³/h |
Every figure is computed at build time by the site’s own converter from the flow rate unit registry. For a value that is not listed, put it into the interactive converter.
Frequently asked questions
How many cubic meters/hour are in one gallon/minute (US)?
One gallon/minute (US) is 0.227124707 m³/h, so 100 gpm is 22.7124707 m³/h.
What is the formula to convert gallons/minute (US) to cubic meters/hour?
m³/h = gpm × 0.227124707. Multiply the value in gallons/minute (US) by 0.227124707 to get cubic meters/hour.
How do I convert cubic meters/hour back to gallons/minute (US)?
gpm = m³/h × 4.40286754, so 1 m³/h is 4.40286754 gpm. The m³/h to gpm page carries the same table in that direction.