CFM conversion chart
Formula and scope
m³/h = CFM × 1.69901082
CFM = m³/h ÷ 1.69901082
CFM = m³/h ÷ 1.69901082
This is a pure volume-flow conversion. Preserve the air-stream label: supply CFM converts to supply m³/h, not to outdoor or exhaust airflow.
CFM to m³/h lookup table
| CFM | m³/h |
|---|---|
| 25 | 42.5 |
| 50 | 85.0 |
| 75 | 127.4 |
| 100 | 169.9 |
| 150 | 254.9 |
| 250 | 424.8 |
| 500 | 849.5 |
| 1,000 | 1,699.0 |
Reverse examples
| m³/h | CFM |
|---|---|
| 100 | 58.9 |
| 250 | 147.1 |
| 400 | 235.4 |
| 1,000 | 588.6 |
How to use the chart
- Confirm the starting value is a volume flow, not an air speed or capacity.
- Use the matching row or the formula for values not shown.
- Round only to the precision appropriate for the design or product data.
- Convert other inputs consistently when using area, velocity, pressure, or room-volume formulas.
FAQ
Is this a design table?
No. It is a unit-conversion table. It does not choose an airflow target, fan, or duct size.