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gpm (US)toL/min

Convert US gallons per minute (gpm (US)) to litres per minute (L/min).

Factor1 gpm (US) = 3.785412 L/min

Converter

gpm (US)

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

Result
378.541L/min

Rendered to 6 significant figures.

Formula

Formula
L/min = gpm (US) × 3.785412

Multiply any value in US gallons per minute by 3.785412 to obtain the value in litres per minute.

Worked example

Convert 100 gpm (US) to L/min.

  1. 01Start with 100 gpm (US).
  2. 02Multiply by the conversion factor: 100 × 3.785412 = 378.541 L/min.
Result100 gpm (US) = 378.541 L/min

Conversion table

gpm (US)L/min
13.7854
27.5708
518.927
1037.854
2075.708
50189.27
100378.54
200757.08
5001892.7
10003785.4

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gpm (US) to L/min?
1 gpm (US) equals 3.785412 L/min. To convert, multiply the value in US gallons per minute by 3.785412.
How do I convert 1 gpm (US) to L/min?
1 gpm (US) = 3.78541 L/min. For any value, multiply by 3.785412.
How do I convert L/min back to gpm (US)?
Divide by the same factor — or equivalently, multiply by 0.2641721. So 1 L/min = 0.264172 gpm (US).
When would I need to convert US gallon per minute to litre 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. gpm (US) to L/min is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
Yes. Both gpm (US) and L/min are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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