Gallon (US)/Hour to Cubic Foot/Minute Converter

Flow Rate Converter

14 units available

Decimals:

From

To

0.002228

1 gph = 0.002228 cfm

Formula:

cfm = gph × 0.0022280093

With your value: 1 gph = 0.00222801 cfm

Other Gallon (US)/Hour to Cubic Foot/Minute conversions

2 gph to cfm 3 gph to cfm 4 gph to cfm 5 gph to cfm 6 gph to cfm 7 gph to cfm 8 gph to cfm

Gallon (US)/Hour to Cubic Foot/Minute Conversion Table

Gallon (US)/Hour (gph)	Cubic Foot/Minute (cfm)
0.5	0.001114
1	0.002228
2	0.004456
5	0.01114
10	0.02228
15	0.03342
20	0.04456
25	0.0557
50	0.1114
100	0.222801
250	0.557002
500	1.114005
1000	2.228009

Cubic Foot/Minute to Gallon (US)/Hour Conversion Table

Cubic Foot/Minute (cfm)	Gallon (US)/Hour (gph)
0.5	224.415584
1	448.831169
2	897.662338
5	2,244.155845
10	4,488.31169
15	6,732.467535
20	8,976.623379
25	11,220.779224
50	22,441.558449
100	44,883.116897
250	112,207.792243
500	224,415.584487
1000	448,831.168973

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Gallon (US)/Hour (gph)

Flow Rate

Exact conversion

Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

Cubic Foot/Minute (cfm)

Flow Rate

Exact conversion

Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

How to Convert Gallon (US)/Hour to Cubic Foot/Minute

To convert from Gallon (US)/Hour (gph) to Cubic Foot/Minute (cfm), multiply the value by 0.0022280093.

Formula: cfm = gph × 0.0022280093

Reverse: gph = cfm × 448.8311689735

Step-by-Step Example

Start with your value in Gallon (US)/Hour. For example: 5 gph
Multiply by the conversion factor: 5 x 0.0022280093
The result is: 0.01114 cfm

About Gallon (US)/Hour

The gallon (us)/hour (gph) is a unit of flow rate. One gallon (us)/hour equals 1.051503 × 10^-6 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: flow rate calculations, engineering and science, education.

About Cubic Foot/Minute

The cubic foot/minute (cfm) is a unit of flow rate. One cubic foot/minute equals 0.0004719474432 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: flow rate calculations, engineering and science, education.

Frequently Asked Questions

How many Cubic Foot/Minute are in 1 Gallon (US)/Hour?

There are exactly 0.0022280093 Cubic Foot/Minute in 1 Gallon (US)/Hour. This means the conversion factor from Gallon (US)/Hour to Cubic Foot/Minute is 0.0022280093.

What is the formula to convert Gallon (US)/Hour to Cubic Foot/Minute?

The formula to convert Gallon (US)/Hour to Cubic Foot/Minute is: cfm = gph × 0.0022280093. For example, to convert 10 Gallon (US)/Hour to Cubic Foot/Minute, you would multiply 10 by 0.0022280093.

What is a Gallon (US)/Hour?