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

Flow Rate Converter

14 units available

Decimals:

From

To

26,929.870138

1 cfs = 26,929.870138 gph

Formula:

gph = cfs × 26,929.8701384071

With your value: 1 cfs = 26,929.87013841 gph

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

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

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

Cubic Foot/Second (cfs)	Gallon (US)/Hour (gph)
0.5	13,464.935069
1	26,929.870138
2	53,859.740277
5	134,649.350692
10	269,298.701384
15	403,948.052076
20	538,597.402768
25	673,246.75346
50	1,346,493.50692
100	2,692,987.013841
250	6,732,467.534602
500	13,464,935.069204
1000	26,929,870.138407

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

Gallon (US)/Hour (gph)	Cubic Foot/Second (cfs)
0.5	1.856674e-5
1	3.713349e-5
2	7.426698e-5
5	0.000186
10	0.000371
15	0.000557
20	0.000743
25	0.000928
50	0.001857
100	0.003713
250	0.009283
500	0.018567
1000	0.037133

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.

Cubic Foot/Second (cfs)

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

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

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

To convert from Cubic Foot/Second (cfs) to Gallon (US)/Hour (gph), multiply the value by 26,929.8701384071.

Formula: gph = cfs × 26,929.8701384071

Reverse: cfs = gph × 0.0000371335

Step-by-Step Example

Start with your value in Cubic Foot/Second. For example: 5 cfs
Multiply by the conversion factor: 5 x 26,929.8701384071
The result is: 134,649.350692 gph

About Cubic Foot/Second

The cubic foot/second (cfs) is a unit of flow rate. One cubic foot/second equals 0.02831684659 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 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.

Frequently Asked Questions

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

There are exactly 26,929.8701384071 Gallon (US)/Hour in 1 Cubic Foot/Second. This means the conversion factor from Cubic Foot/Second to Gallon (US)/Hour is 26,929.8701384071.

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

The formula to convert Cubic Foot/Second to Gallon (US)/Hour is: gph = cfs × 26,929.8701384071. For example, to convert 10 Cubic Foot/Second to Gallon (US)/Hour, you would multiply 10 by 26,929.8701384071.

What is a Cubic Foot/Second?