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Volumetric Flow Rate

L/stogpm (US)

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

Factor1 L/s = 15.85032 gpm (US)

Converter

L/s

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

Result
158.503gpm (US)

Rendered to 6 significant figures.

Formula

Formula
gpm (US) = L/s × 15.85032

Multiply any value in litres per second by 15.85032 to obtain the value in US gallons per minute.

Worked example

Convert 10 L/s to gpm (US).

  1. 01Start with 10 L/s.
  2. 02Multiply by the conversion factor: 10 × 15.85032 = 158.503 gpm (US).
Result10 L/s = 158.503 gpm (US)

Conversion table

L/sgpm (US)
115.85
231.701
579.252
10158.5
20317.01
50792.52
1001585
2003170.1
5007925.2
100015850

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from L/s to gpm (US)?
1 L/s equals 15.85032 gpm (US). To convert, multiply the value in litres per second by 15.85032.
How do I convert 1 L/s to gpm (US)?
1 L/s = 15.8503 gpm (US). For any value, multiply by 15.85032.
How do I convert gpm (US) back to L/s?
Divide by the same factor — or equivalently, multiply by 0.0630902. So 1 gpm (US) = 0.0630902 L/s.
When would I need to convert litre per second 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. L/s to gpm (US) is a frequently needed conversion for hydraulic sizing.
Is the conversion exact?
Yes. Both L/s and gpm (US) are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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