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Volumetric Flow Rate

gal/day (US)tom³/hr

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

Factor1 gal/day (US) = 0.0001577255 m³/hr

Converter

gal/day (US)

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

Result
1.57725m³/hr

Rendered to 6 significant figures.

Formula

Formula
m³/hr = gal/day (US) × 0.0001577255

Multiply any value in US gallons per day by 0.0001577255 to obtain the value in cubic metres per hour.

Worked example

Convert 10000 gal/day (US) to m³/hr.

  1. 01Start with 10000 gal/day (US).
  2. 02Multiply by the conversion factor: 10000 × 0.0001577255 = 1.57725 m³/hr.
Result10000 gal/day (US) = 1.57725 m³/hr

Conversion table

gal/day (US)m³/hr
10.00015773
20.00031545
50.00078863
100.0015773
200.0031545
500.0078863
1000.015773
2000.031545
5000.078863
10000.15773

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gal/day (US) to m³/hr?
1 gal/day (US) equals 0.0001577255 m³/hr. To convert, multiply the value in US gallons per day by 0.0001577255.
How do I convert 1 gal/day (US) to m³/hr?
1 gal/day (US) = 0.000157725 m³/hr. For any value, multiply by 0.0001577255.
How do I convert m³/hr back to gal/day (US)?
Divide by the same factor — or equivalently, multiply by 6340.129. So 1 m³/hr = 6340.13 gal/day (US).
When would I need to convert US gallon per day to cubic metre 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. gal/day (US) to m³/hr 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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