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Volumetric Flow Rate

m³/hrtogal/day (US)

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

Factor1 m³/hr = 6340.129 gal/day (US)

Converter

m³/hr

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

Result
6340.13gal/day (US)

Rendered to 6 significant figures.

Formula

Formula
gal/day (US) = m³/hr × 6340.129

Multiply any value in cubic metres per hour by 6340.129 to obtain the value in US gallons per day.

Worked example

Convert 1 m³/hr to gal/day (US).

  1. 01Start with 1 m³/hr.
  2. 02Multiply by the conversion factor: 1 × 6340.129 = 6340.13 gal/day (US).
Result1 m³/hr = 6340.13 gal/day (US)

Conversion table

m³/hrgal/day (US)
16340.1
212680
531701
1063401
201.2680e+5
503.1701e+5
1006.3401e+5
2001.2680e+6
5003.1701e+6
10006.3401e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from m³/hr to gal/day (US)?
1 m³/hr equals 6340.129 gal/day (US). To convert, multiply the value in cubic metres per hour by 6340.129.
How do I convert 1 m³/hr to gal/day (US)?
1 m³/hr = 6340.13 gal/day (US). For any value, multiply by 6340.129.
How do I convert gal/day (US) back to m³/hr?
Divide by the same factor — or equivalently, multiply by 0.0001577255. So 1 gal/day (US) = 0.000157725 m³/hr.
When would I need to convert cubic metre per hour to US gallon per day?
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 gal/day (US) is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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