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Flow Rate

m³/hrtogpm (US)

Convert cubic metres per hour (m³/hr) to US gallons per minute (gpm (US)).

Factor1 m³/hr = 4.402868 gpm (US)

Converter

m³/hr

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

Result
220.143gpm (US)

Rendered to 6 significant figures.

Formula

Formula
gpm (US) = m³/hr × 4.402868

Multiply any value in cubic metres per hour by 4.402868 to obtain the value in US gallons per minute.

Worked example

Convert 50 m³/hr to gpm (US).

  1. 01Start with 50 m³/hr.
  2. 02Multiply by the conversion factor: 50 × 4.402868 = 220.143 gpm (US).
Result50 m³/hr = 220.143 gpm (US)

Conversion table

m³/hrgpm (US)
14.4029
28.8057
522.014
1044.029
2088.057
50220.14
100440.29
200880.57
5002201.4
10004402.9

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from m³/hr to gpm (US)?
1 m³/hr equals 4.402868 gpm (US). To convert, multiply the value in cubic metres per hour by 4.402868.
How do I convert 1 m³/hr to gpm (US)?
1 m³/hr = 4.40287 gpm (US). For any value, multiply by 4.402868.
How do I convert gpm (US) back to m³/hr?
Divide by the same factor — or equivalently, multiply by 0.2271247. So 1 gpm (US) = 0.227125 m³/hr.
When would I need to convert cubic metre per hour to US gallon per minute?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. m³/hr to gpm (US) is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
Yes. Both m³/hr and gpm (US) are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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