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.
📚
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.