m/s to FPM Converter
Meters per second (m/s) is the SI unit for velocity, while feet per minute (FPM) is the standard US unit for airflow velocity in ducts and HVAC systems. 1 m/s = 196.85 FPM. A...
Formula
Source: Engineering Toolbox, ASHRAE | Last reviewed: June 8, 2026
Examples
1 m/s
= 196.9 fpm
1 m/s = 196.9 FPM
5 m/s
= 984.3 fpm
Typical duct velocity (5 m/s ≈ 1,000 FPM)
0.5 m/s
= 98.4 fpm
Fume hood face velocity (0.5 m/s)
25 m/s
= 4921 fpm
Industrial exhaust velocity
Quick Reference Table
| m/s | FPM |
|---|---|
| 0.25 | 49.2 |
| 0.5 | 98.4 |
| 1 | 196.9 |
| 2.5 | 492.1 |
| 5 | 984.3 |
| 10 | 1969 |
| 15 | 2953 |
| 25 | 4921 |
Where is this used?
Laboratory fume hood face velocity requirements (typically 100 FPM = 0.5 m/s).
Industrial ventilation: capture velocity for hoods and exhaust systems.
Frequently Asked Questions
What is a good duct velocity for HVAC?
Recommended duct velocities: residential branches 600-900 FPM (3-4.5 m/s), main ducts 700-1,000 FPM (3.5-5 m/s), commercial low-pressure 1,000-1,500 FPM (5-7.6 m/s). Higher velocities save duct cost but increase noise and pressure drop.
How does velocity relate to CFM?
CFM = Velocity (FPM) × Duct Area (ft²). So a 2 ft² duct at 1,000 FPM carries 2,000 CFM. This makes velocity-to-CFM and CFM-to-velocity conversions fundamental to duct sizing.
What face velocity is required for a fume hood?
OSHA and ASHRAE specify 80-120 FPM (0.4-0.6 m/s) face velocity for laboratory fume hoods, with 100 FPM (0.5 m/s) being the most common standard. Lower velocities risk containment failure; higher velocities cause turbulence.
Reviewed for accuracy
· Last reviewed: June 8, 2026
All calculations are for reference only. Always verify with manufacturer data and a qualified engineer for critical applications. Learn about our editorial process.