Flow Rate Converter

Convert between flow rate units including L/s, GPM, CFM, cubic meters per hour, and more.

1 L/s =

15.850322

Gallons per minute (US)

1 L/s in all units

Liters per second (L/s)1
Liters per minute (L/min)60
Liters per hour (L/hr)3,600
Cubic meters per second (m3/s)0.001
Cubic meters per hour (m3/hr)3.6
Gallons per minute (US)15.850322
Gallons per hour (US)951.019334
Cubic feet per minute (CFM)2.118882
Cubic feet per second (CFS)0.035315

Quick Reference

1 L/s

= 15.85 GPM

1 CFM

= 0.472 L/s

1 m3/hr

= 4.4 GPM

1 CFS

= 448.8 GPM

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: NIST Guide to SI Units

by National Institute of Standards

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.