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Volumetric Flow Rate

m³/hrtogph (US)

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

Factor1 m³/hr = 264.1721 gph (US)

Converter

m³/hr

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

Result
2641.72gph (US)

Rendered to 6 significant figures.

Formula

Formula
gph (US) = m³/hr × 264.1721

Multiply any value in cubic metres per hour by 264.1721 to obtain the value in US gallons per hour.

Worked example

Convert 10 m³/hr to gph (US).

  1. 01Start with 10 m³/hr.
  2. 02Multiply by the conversion factor: 10 × 264.1721 = 2641.72 gph (US).
Result10 m³/hr = 2641.72 gph (US)

Conversion table

m³/hrgph (US)
1264.17
2528.34
51320.9
102641.7
205283.4
5013209
10026417
20052834
5001.3209e+5
10002.6417e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from m³/hr to gph (US)?
1 m³/hr equals 264.1721 gph (US). To convert, multiply the value in cubic metres per hour by 264.1721.
How do I convert 1 m³/hr to gph (US)?
1 m³/hr = 264.172 gph (US). For any value, multiply by 264.1721.
How do I convert gph (US) back to m³/hr?
Divide by the same factor — or equivalently, multiply by 0.003785412. So 1 gph (US) = 0.00378541 m³/hr.
When would I need to convert cubic metre per hour 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. m³/hr to gph (US) is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
Yes. Both m³/hr 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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