GPM to L/min (GPM to L/min)
Result
3.785411784 L/min
Formula
L/min = GPM × 3.785411784
1 GPM = 3.785411784 L/min, and 1 L/min = 0.2641720524 GPM.
Standard gravity is defined as exactly 9.80665 m/s². Density and flow factors follow from the length, mass and volume definitions (for example 1 US gallon per minute = 3.785411784 L/min).
Worked examples
- 1 GPM × 3.785411784 = 3.7854118 L/min
- 10 GPM × 3.785411784 = 37.854118 L/min
- 100 GPM × 3.785411784 = 378.54118 L/min
Common mistakes
- Actual gravity varies from about 9.78 m/s² at the equator to 9.83 m/s² at the poles; "g" here is the defined standard value.
- GPM here means US gallons per minute; UK pump literature may use imperial gallons (4.546 L).
GPM to L/min table
| GPM (GPM) | L/min (L/min) |
|---|---|
| 1 | 3.7854118 |
| 2 | 7.5708236 |
| 5 | 18.927059 |
| 10 | 37.854118 |
| 20 | 75.708236 |
| 50 | 189.27059 |
| 100 | 378.54118 |
| 1,000 | 3,785.4118 |
The units
- GPM (GPM)
- 1 GPM = 3.785411784 L/min.
- L/min (L/min)
- A unit of engineering.
Sources for these factors
- The International System of Units (SI Brochure), 9th edition — BIPM
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy