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Volumetric Flow Rate

gal/day (US)toIGal/hr

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

Factor1 gal/day (US) = 0.03469476 IGal/hr

Converter

gal/day (US)

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

Result
34.6948IGal/hr

Rendered to 6 significant figures.

Formula

Formula
IGal/hr = gal/day (US) × 0.03469476

Multiply any value in US gallons per day by 0.03469476 to obtain the value in Imperial gallons per hour.

Worked example

Convert 1000 gal/day (US) to IGal/hr.

  1. 01Start with 1000 gal/day (US).
  2. 02Multiply by the conversion factor: 1000 × 0.03469476 = 34.6948 IGal/hr.
Result1000 gal/day (US) = 34.6948 IGal/hr

Conversion table

gal/day (US)IGal/hr
10.034695
20.06939
50.17347
100.34695
200.6939
501.7347
1003.4695
2006.939
50017.347
100034.695

Reference values rounded to 5 significant figures for display.

FAQ

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