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

Flow Rate Converter

14 units available

Decimals:

From

To

1.051503e-6

1 gph = 1.051503e-6 m³/s

Formula:

m³/s = gph × 0.0000010515

With your value: 1 gph = 1.051503e-6 m³/s

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

2 gph to m³/s 3 gph to m³/s 4 gph to m³/s 5 gph to m³/s 6 gph to m³/s 7 gph to m³/s 8 gph to m³/s

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

Gallon (US)/Hour (gph)	Cubic Meter/Second (m³/s)
0.5	5.257516e-7
1	1.051503e-6
2	2.103007e-6
5	5.257516e-6
10	1.051503e-5
15	1.577255e-5
20	2.103007e-5
25	2.628758e-5
50	5.257516e-5
100	0.000105
250	0.000263
500	0.000526
1000	0.001052

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

Cubic Meter/Second (m³/s)	Gallon (US)/Hour (gph)
0.5	475,509.694395
1	951,019.388791
2	1,902,038.777582
5	4,755,096.943954
10	9,510,193.887908
15	14,265,290.831862
20	19,020,387.775816
25	23,775,484.71977
50	47,550,969.439541
100	95,101,938.879081
250	237,754,847.197703
500	475,509,694.395407
1000	951,019,388.790814

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 Meter/Second (m³/s)

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 Meter/Second

To convert from Gallon (US)/Hour (gph) to Cubic Meter/Second (m³/s), multiply the value by 1.051503e-6.

Formula: m³/s = gph × 0.0000010515

Reverse: gph = m³/s × 951,019.3887908136

Step-by-Step Example

Start with your value in Gallon (US)/Hour. For example: 5 gph
Multiply by the conversion factor: 5 x 1.051503e-6
The result is: 5.257516e-6 m³/s

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 Meter/Second

The cubic meter/second (m³/s) is a unit of flow rate. One cubic meter/second equals 1 base unit. 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 Meter/Second are in 1 Gallon (US)/Hour?

There are exactly 1.051503e-6 Cubic Meter/Second in 1 Gallon (US)/Hour. This means the conversion factor from Gallon (US)/Hour to Cubic Meter/Second is 1.051503e-6.

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

The formula to convert Gallon (US)/Hour to Cubic Meter/Second is: m³/s = gph × 0.0000010515. For example, to convert 10 Gallon (US)/Hour to Cubic Meter/Second, you would multiply 10 by 1.051503e-6.

What is a Gallon (US)/Hour?