gph to cfm converter

1 US gallons per hour equals 0.0022280093 cubic feet per minute. Conversions use cfm = gph × 0.002228

gph → 0.0022280093 cfm

cfm = gph × 0.002228

Converter

Worked examples

1 gph = 0.0022280093 cfm
2 gph = 0.0044560185 cfm
5 gph = 0.01114005 cfm
10 gph = 0.02228009 cfm
100 gph = 0.22280093 cfm

US gallons per hour to cubic feet per minute conversion table

gph	cfm	Arithmetic
1 gph	0.0022280093 cfm	× 0.002228
2 gph	0.0044560185 cfm	× 0.002228
3 gph	0.0066840278 cfm	× 0.002228
4 gph	0.008912037 cfm	× 0.002228
5 gph	0.01114005 cfm	× 0.002228
6 gph	0.01336806 cfm	× 0.002228
8 gph	0.01782407 cfm	× 0.002228
10 gph	0.02228009 cfm	× 0.002228
12 gph	0.02673611 cfm	× 0.002228
15 gph	0.03342014 cfm	× 0.002228
20 gph	0.04456019 cfm	× 0.002228
25 gph	0.05570023 cfm	× 0.002228
30 gph	0.06684028 cfm	× 0.002228
40 gph	0.08912037 cfm	× 0.002228
50 gph	0.11140046 cfm	× 0.002228
60 gph	0.13368056 cfm	× 0.002228
70 gph	0.15596065 cfm	× 0.002228
80 gph	0.17824074 cfm	× 0.002228
90 gph	0.20052083 cfm	× 0.002228
100 gph	0.22280093 cfm	× 0.002228

How to convert gph to cfm

Take your value in US gallons per hour.
Multiply by 0.002228
That is your answer in cubic feet per minute — no rounding needed until you choose a display precision.

Related conversions

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

Questions

How many cubic feet per minute in 1 US gallons per hour?

Exactly 0.0022280093 cfm. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert gph to cfm?

Multiply the US gallons per hour figure by 0.002228 — or use the converter above, which updates as you type.

Is gph to cfm the same as cfm to gph?

No — they are inverses. One gph is 0.0022280093 cfm, while one cfm is 448.831 gph.

What is 1 gph in cfm?

1 gph = 0.0022280093 cfm (see the value page for the full arithmetic).