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Volumetric Flow Rate

gpm (US)togph (US)

Convert US gallons per minute (gpm (US)) to US gallons per hour (gph (US)).

Factor1 gpm (US) = 60 gph (US)

Converter

gpm (US)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
600gph (US)

Rendered to 6 significant figures.

Formula

Formula
gph (US) = gpm (US) × 60

Multiply any value in US gallons per minute by 60 to obtain the value in US gallons per hour.

Worked example

Convert 10 gpm (US) to gph (US).

  1. 01Start with 10 gpm (US).
  2. 02Multiply by the conversion factor: 10 × 60 = 600 gph (US).
Result10 gpm (US) = 600 gph (US)

Conversion table

gpm (US)gph (US)
160
2120
5300
10600
201200
503000
1006000
20012000
50030000
100060000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gpm (US) to gph (US)?
1 gpm (US) equals 60 gph (US). To convert, multiply the value in US gallons per minute by 60.
How do I convert 1 gpm (US) to gph (US)?
1 gpm (US) = 60 gph (US). For any value, multiply by 60.
How do I convert gph (US) back to gpm (US)?
Divide by the same factor — or equivalently, multiply by 0.01666667. So 1 gph (US) = 0.0166667 gpm (US).
When would I need to convert US gallon per minute to US gallon per hour?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. gpm (US) to gph (US) is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
Yes. Both gpm (US) and gph (US) are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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