gph to m³/h converter

1 US gallons per hour equals 0.0037854118 cubic meters per hour. Conversions use m³/h = gph × 0.003785

gph → 0.0037854118 m³/h

m³/h = gph × 0.003785

Converter

Worked examples

1 gph = 0.0037854118 m³/h
2 gph = 0.0075708236 m³/h
5 gph = 0.01892706 m³/h
10 gph = 0.03785412 m³/h
100 gph = 0.37854118 m³/h

US gallons per hour to cubic meters per hour conversion table

gph	m³/h	Arithmetic
1 gph	0.0037854118 m³/h	× 0.003785
2 gph	0.0075708236 m³/h	× 0.003785
3 gph	0.01135624 m³/h	× 0.003785
4 gph	0.01514165 m³/h	× 0.003785
5 gph	0.01892706 m³/h	× 0.003785
6 gph	0.02271247 m³/h	× 0.003785
8 gph	0.03028329 m³/h	× 0.003785
10 gph	0.03785412 m³/h	× 0.003785
12 gph	0.04542494 m³/h	× 0.003785
15 gph	0.05678118 m³/h	× 0.003785
20 gph	0.07570824 m³/h	× 0.003785
25 gph	0.09463529 m³/h	× 0.003785
30 gph	0.11356235 m³/h	× 0.003785
40 gph	0.15141647 m³/h	× 0.003785
50 gph	0.18927059 m³/h	× 0.003785
60 gph	0.22712471 m³/h	× 0.003785
70 gph	0.26497882 m³/h	× 0.003785
80 gph	0.30283294 m³/h	× 0.003785
90 gph	0.34068706 m³/h	× 0.003785
100 gph	0.37854118 m³/h	× 0.003785

How to convert gph to m³/h

Take your value in US gallons per hour.
Multiply by 0.003785
That is your answer in cubic meters per hour — no rounding needed until you choose a display precision.

Related conversions

m³/h to gph L/min to m³/h L/s to m³/h m³/h to L/min m³/h to L/s m³/h to cfm m³/h to gpm cfm to m³/h gpm to m³/h all flow rate units

Questions

How many cubic meters per hour in 1 US gallons per hour?

Exactly 0.0037854118 m³/h. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert gph to m³/h?

Multiply the US gallons per hour figure by 0.003785 — or use the converter above, which updates as you type.

Is gph to m³/h the same as m³/h to gph?

No — they are inverses. One gph is 0.0037854118 m³/h, while one m³/h is 264.172 gph.

What is 1 gph in m³/h?

1 gph = 0.0037854118 m³/h (see the value page for the full arithmetic).