To convert gallons per hour to cubic meters per second, multiply by 0.000001051503273.
The calculation uses 1 GPH = 0.000001051503273 m³/s. Results are displayed to at most 10 significant digits. Definitions can be exact while a displayed decimal is rounded. Match the displayed precision to your original measurement.
The formula
value in m³/s = value in GPH × 0.000001051503273
GPH- Input unit: gallons per hour
m³/s- Output unit: cubic meters per second
How to use this calculator
- Enter a value in GPH.
- Multiply by the stored conversion factor.
- Read the result in m³/s; divide by the same factor to convert back.
Worked examples
Worked conversion
1 GPH × 0.000001051503273 ≈ 0.000001051503273 m³/s.
Reverse conversion
0.000001051503273 m³/s ÷ 0.000001051503273 ≈ 1 GPH. Rounding intermediate values can change the last displayed digit.
Frequently asked questions
What factor does this converter use?
It uses 0.000001051503273 m³/s per GPH.
Why can another converter show a slightly different answer?
Check the unit convention first (such as US versus Imperial or decimal versus binary), then compare rounding. Measurement uncertainty is separate from the unit conversion.
GPH to m³/s table
| GPH | m³/s (rounded) |
|---|---|
| 0 | 0 |
| 1 | 0.000001051503273 |
| 2 | 0.000002103006547 |
| 5 | 0.000005257516367 |
| 10 | 0.00001051503273 |
| 100 | 0.0001051503273 |
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