Convert 20 Gallon (US)/Minute (gpm) to Gallon (US)/Hour (gph).

20 Gallon (US)/Minute equals 1,200 Gallon (US)/Hour. Multiply 20 by 60.000000019.

What is 20 Gallon (US)/Minute in Gallon (US)/Hour?

20 Gallon (US)/Minute equals 1,200 Gallon (US)/Hour.

How many Gallon (US)/Hours are in 1 Gallon (US)/Minute?

There are exactly 60.000000019 Gallon (US)/Hours in 1 Gallon (US)/Minute. This means the conversion factor from Gallon (US)/Minute to Gallon (US)/Hour is 60.000000019.

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

The formula to convert Gallon (US)/Minute to Gallon (US)/Hour is: gph = gpm × 60.000000019. For example, to convert 10 Gallon (US)/Minutes to Gallon (US)/Hours, you would multiply 10 by 60.000000019.

What are the common uses of Gallon (US)/Minute?

The Gallon (US)/Minute is commonly used in flow rate calculations, engineering and science, education.

What is 20 Gallon (US)/Minute in Gallon (US)/Hour?

To convert 20 Gallon (US)/Minutes to Gallon (US)/Hours, multiply by 60.000000019. Therefore, 20 Gallon (US)/Minute (gpm) equals 1,200 Gallon (US)/Hour (gph).

20 Gallon (US)/Minute to Gallon (US)/Hour

Worked example: converting Gallon (US)/Minute to Gallon (US)/Hour

Step 1 — start with the formula. gph = gpm × 60.000000019
Step 2 — substitute your figure. 20 gpm × 60.000000019
Step 3 — read the result. 20 gpm = 1,200 gph
Step 4 — check it in reverse. gpm = gph × 0.0166666667 returns Invalid gpm, which matches the figure you started with.

Flow Rate Converter

14 units available

Decimals:

From

To

1,200

20 gpm = 1,200 gph

Formula:

gph = gpm × 60.000000019

With your value: 20 gpm = 1,200.00000038 gph

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

14 gpm to gph 15 gpm to gph 16 gpm to gph 18 gpm to gph 21 gpm to gph 24 gpm to gph 25 gpm to gph Full Gallon (US)/Minute to Gallon (US)/Hour converter

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

Gallon (US)/Minute (gpm)	Gallon (US)/Hour (gph)
0.5	30
1	60
2	120
5	300
10	600
15	900
20	1,200
25	1,500
50	3,000.000001
100	6,000.000002
250	15,000.000005
500	30,000.00001
1000	60,000.000019

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

Gallon (US)/Hour (gph)	Gallon (US)/Minute (gpm)
0.5	0.008333
1	0.016667
2	0.033333
5	0.083333
10	0.166667
15	0.25
20	0.333333
25	0.416667
50	0.833333
100	1.666667
250	4.166667
500	8.333333
1000	16.666667

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)/Minute (gpm)

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 Gallon (US)/Minute to Gallon (US)/Hour

To convert from Gallon (US)/Minute (gpm) to Gallon (US)/Hour (gph), multiply the value by 60.000000019.

Formula: gph = gpm × 60.000000019

Reverse: gpm = gph × 0.0166666667

Step-by-Step Example

Start with your value in Gallon (US)/Minute. For example: 5 gpm
Multiply by the conversion factor: 5 x 60.000000019
The result is: 300 gph

Gallon (US)/Minute and Gallon (US)/Hour Relationship

This calculation facilitates standardized conversion between recognized units of flow rate. Since 1 Gallon (US)/Minute equals approximately 60 Gallon (US)/Hours, the Gallon (US)/Minute represents a larger unit interval than the Gallon (US)/Hour. Understanding the relationship between Gallon (US)/Minute and Gallon (US)/Hour is essential for accurate calculations in physics, engineering, commerce, and daily applications.

About Gallon (US)/Minute

The Gallon (US)/Minute (symbol: gpm) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.

Common uses of Gallon (US)/Minute: flow rate calculations, engineering and science, education.

About Gallon (US)/Hour

The Gallon (US)/Hour (symbol: gph) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.

Common uses of Gallon (US)/Hour: flow rate calculations, engineering and science, education.

Frequently Asked Questions

What is 20 Gallon (US)/Minute in Gallon (US)/Hour?: 20 Gallon (US)/Minute equals 1,200 Gallon (US)/Hour.
How many Gallon (US)/Hours are in 1 Gallon (US)/Minute?: There are exactly 60.000000019 Gallon (US)/Hours in 1 Gallon (US)/Minute. This means the conversion factor from Gallon (US)/Minute to Gallon (US)/Hour is 60.000000019.
What is the formula to convert Gallon (US)/Minute to Gallon (US)/Hour?: The formula to convert Gallon (US)/Minute to Gallon (US)/Hour is: gph = gpm × 60.000000019. For example, to convert 10 Gallon (US)/Minutes to Gallon (US)/Hours, you would multiply 10 by 60.000000019.
What is a Gallon (US)/Minute?: The Gallon (US)/Minute (symbol: gpm) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.
What is a Gallon (US)/Hour?: The Gallon (US)/Hour (symbol: gph) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.
What are the common uses of Gallon (US)/Minute?: The Gallon (US)/Minute is commonly used in flow rate calculations, engineering and science, education.