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Volumetric Flow Rate

IGal/hrtogal/day (US)

Convert Imperial gallons per hour (IGal/hr) to US gallons per day (gal/day (US)).

Factor1 IGal/hr = 28.8228 gal/day (US)

Converter

IGal/hr

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

Result
28.8228gal/day (US)

Rendered to 6 significant figures.

Formula

Formula
gal/day (US) = IGal/hr × 28.8228

Multiply any value in Imperial gallons per hour by 28.8228 to obtain the value in US gallons per day.

Worked example

Convert 1 IGal/hr to gal/day (US).

  1. 01Start with 1 IGal/hr.
  2. 02Multiply by the conversion factor: 1 × 28.8228 = 28.8228 gal/day (US).
Result1 IGal/hr = 28.8228 gal/day (US)

Conversion table

IGal/hrgal/day (US)
128.823
257.646
5144.11
10288.23
20576.46
501441.1
1002882.3
2005764.6
50014411
100028823

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from IGal/hr to gal/day (US)?
1 IGal/hr equals 28.8228 gal/day (US). To convert, multiply the value in Imperial gallons per hour by 28.8228.
How do I convert 1 IGal/hr to gal/day (US)?
1 IGal/hr = 28.8228 gal/day (US). For any value, multiply by 28.8228.
How do I convert gal/day (US) back to IGal/hr?
Divide by the same factor — or equivalently, multiply by 0.03469476. So 1 gal/day (US) = 0.0346948 IGal/hr.
When would I need to convert Imperial gallon 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. IGal/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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