▸ processconvert
Volumetric Flow Rate

IGal/mintogpm (US)

Convert Imperial gallons per minute (IGal/min) to US gallons per minute (gpm (US)).

Factor1 IGal/min = 1.20095 gpm (US)

Converter

IGal/min

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

Result
120.095gpm (US)

Rendered to 6 significant figures.

Formula

Formula
gpm (US) = IGal/min × 1.20095

Multiply any value in Imperial gallons per minute by 1.20095 to obtain the value in US gallons per minute.

Worked example

Convert 100 IGal/min to gpm (US).

  1. 01Start with 100 IGal/min.
  2. 02Multiply by the conversion factor: 100 × 1.20095 = 120.095 gpm (US).
Result100 IGal/min = 120.095 gpm (US)

Conversion table

IGal/mingpm (US)
11.2009
22.4019
56.0047
1012.009
2024.019
5060.047
100120.09
200240.19
500600.47
10001200.9

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from IGal/min to gpm (US)?
1 IGal/min equals 1.20095 gpm (US). To convert, multiply the value in Imperial gallons per minute by 1.20095.
How do I convert 1 IGal/min to gpm (US)?
1 IGal/min = 1.20095 gpm (US). For any value, multiply by 1.20095.
How do I convert gpm (US) back to IGal/min?
Divide by the same factor — or equivalently, multiply by 0.8326742. So 1 gpm (US) = 0.832674 IGal/min.
When would I need to convert Imperial gallon per minute to US gallon per minute?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. IGal/min to gpm (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).

Related conversions