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

Flow Rate Converter

14 units available

Decimals:

From

To

3.85

1 gph = 3.85 in³/min

Formula:

in³/min = gph × 3.8500000458

With your value: 1 gph = 3.85000005 in³/min

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

2 gph to in³/min 3 gph to in³/min 4 gph to in³/min 5 gph to in³/min 6 gph to in³/min 7 gph to in³/min 8 gph to in³/min

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

Gallon (US)/Hour (gph)	Cubic Inch/Minute (in³/min)
0.5	1.925
1	3.85
2	7.7
5	19.25
10	38.5
15	57.750001
20	77.000001
25	96.250001
50	192.500002
100	385.000005
250	962.500011
500	1,925.000023
1000	3,850.000046

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

Cubic Inch/Minute (in³/min)	Gallon (US)/Hour (gph)
0.5	0.12987
1	0.25974
2	0.519481
5	1.298701
10	2.597403
15	3.896104
20	5.194805
25	6.493506
50	12.987013
100	25.974026
250	64.935064
500	129.870128
1000	259.740257

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 Inch/Minute (in³/min)

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 Inch/Minute

To convert from Gallon (US)/Hour (gph) to Cubic Inch/Minute (in³/min), multiply the value by 3.8500000458.

Formula: in³/min = gph × 3.8500000458

Reverse: gph = in³/min × 0.2597402567

Step-by-Step Example

Start with your value in Gallon (US)/Hour. For example: 5 gph
Multiply by the conversion factor: 5 x 3.8500000458
The result is: 19.25 in³/min

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 Inch/Minute

The cubic inch/minute (in³/min) is a unit of flow rate. One cubic inch/minute equals 2.731177 × 10^-7 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 Inch/Minute are in 1 Gallon (US)/Hour?

There are exactly 3.8500000458 Cubic Inch/Minute in 1 Gallon (US)/Hour. This means the conversion factor from Gallon (US)/Hour to Cubic Inch/Minute is 3.8500000458.

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

The formula to convert Gallon (US)/Hour to Cubic Inch/Minute is: in³/min = gph × 3.8500000458. For example, to convert 10 Gallon (US)/Hour to Cubic Inch/Minute, you would multiply 10 by 3.8500000458.

What is a Gallon (US)/Hour?