Rainfall Units Converter

Convert between different rainfall or storm-water units including rainfall conversions and weight of rainfall calculations.

inches/hour	gal/(h ft²)	gal/(min ft²)
2.5	1.56	0.026
2.4	1.5	0.025
2.3	1.43	0.024
2.2	1.37	0.023
2.1	1.31	0.022
2	1.25	0.021
1.9	1.18	0.02
1.8	1.12	0.019
1.7	1.06	0.018
1.6	1	0.017
1.5	0.94	0.016
1.4	0.87	0.015
1.3	0.81	0.014
1.2	0.75	0.013
1.1	0.69	0.011
1	0.62	0.01

Conversion Factors

1 inch (in) = 25.4 mm
1 gph = 0.0012 l/s
1 ft² = 0.093 m²

Amount of Rain (in)	Weight of Water (lb/ft²)
6	31.2
5	26
4	20.8
3	15.6
2	10.4
1	5.2