Flow rate
L/h to gph Converter
1 L/h = 0.26417 gph. Enter any value and the result updates instantly.
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Accuracy and rounding
Use volume-flow conversions only when the fluid volume per time is known; mass flow also depends on density.
Volume-flow units combine fixed volume definitions with fixed time units. U.S. gallons are used when gpm or gph is shown.
For pumps and HVAC, round gph only after allowing for the equipment tolerance and operating point.
How to convert L/h to gph
- Type the L/h value in the calculator.
- Keep L/h selected as the from unit and gph selected as the to unit.
- Use the instant result, or copy it with the copy button.
L/h to gph chart
| L/h | gph |
|---|---|
| 1 L/h | 0.26417 gph |
| 5 L/h | 1.3209 gph |
| 10 L/h | 2.6417 gph |
| 50 L/h | 13.2086 gph |
| 100 L/h | 26.4172 gph |
Formula
gph = L/h x 0.264172052358
Example: 1 L/h = 0.26417 gph.
Source
Volume-per-time factors derived from NIST volume definitions and the SI second.
Common questions
How do I convert L/h to gph?
Enter the L/h value in the converter, or multiply by the factor shown in the formula. 1 L/h = 0.26417 gph.
What should I watch out for?
GPM and GPH use U.S. liquid gallons; imperial gallons produce a different result.
Where does this flow rate conversion come from?
Volume-per-time factors derived from NIST volume definitions and the SI second. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.