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Volumetric Flow Rate

gal/day (US)toft³/hr

Convert US gallons per day (gal/day (US)) to cubic feet per hour (ft³/hr).

Factor1 gal/day (US) = 0.005570023 ft³/hr

Converter

gal/day (US)

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

Result
5.57002ft³/hr

Rendered to 6 significant figures.

Formula

Formula
ft³/hr = gal/day (US) × 0.005570023

Multiply any value in US gallons per day by 0.005570023 to obtain the value in cubic feet per hour.

Worked example

Convert 1000 gal/day (US) to ft³/hr.

  1. 01Start with 1000 gal/day (US).
  2. 02Multiply by the conversion factor: 1000 × 0.005570023 = 5.57002 ft³/hr.
Result1000 gal/day (US) = 5.57002 ft³/hr

Conversion table

gal/day (US)ft³/hr
10.00557
20.01114
50.02785
100.0557
200.1114
500.2785
1000.557
2001.114
5002.785
10005.57

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gal/day (US) to ft³/hr?
1 gal/day (US) equals 0.005570023 ft³/hr. To convert, multiply the value in US gallons per day by 0.005570023.
How do I convert 1 gal/day (US) to ft³/hr?
1 gal/day (US) = 0.00557002 ft³/hr. For any value, multiply by 0.005570023.
How do I convert ft³/hr back to gal/day (US)?
Divide by the same factor — or equivalently, multiply by 179.5325. So 1 ft³/hr = 179.532 gal/day (US).
When would I need to convert US gallon per day to cubic foot 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 ft³/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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