m³/min to CFM Converter
1 m³/min = 35.314666721 CFM. The factor comes from: 1 m³ = 35.314666721 ft³ (since 1 m = 3.28083989501312 ft, cubed). The time unit (per minute) is identical in both systems, so...
Formula
Source: NIST SP 811, ISO 80000-4 | Last reviewed: June 27, 2026
Examples
1 m³/min
= 35.31 CFM
1 m³/min = 35.31 CFM
10 m³/min
= 353.1 CFM
10 m³/min = 353 CFM, typical 50 HP compressor
50 m³/min
= 1765.7 CFM
50 m³/min = 1,766 CFM, large industrial fan
100 m³/min
= 3531.5 CFM
100 m³/min = 3,531 CFM, large dust collector
Quick Reference Table
| m³/min | CFM | Typical Application |
|---|---|---|
| 1 | 35.3 | Very small fan |
| 5 | 177 | Small workshop exhaust fan |
| 10 | 353 | 50 HP air compressor FAD |
| 50 | 1766 | Large industrial fan / medium dust collector |
| 100 | 3531 | Large industrial dust collector |
| 200 | 7063 | Power plant forced-draft fan |
| 500 | 17657 | Very large industrial ventilation system |
Where is this used?
The factor comes from: 1 m³ = 35.314666721 ft³ (since 1 m = 3.28083989501312 ft, cubed).
The time unit (per minute) is identical in both systems, so the conversion is purely volumetric.
The m³/min unit is common in European and Asian fan engineering, HVAC duct sizing, and pneumatic conveying specifications.
Most European industrial fan curves (from companies like ebm-papst, Ziehl-Abegg, Nicotra Gebhardt, and Systemair) present airflow in m³/h (cubic meters per hour), which is 60× larger than m³/min, but the m³/min scale is more convenient for larger industrial applications, a 100 m³/min fan is 6,000 m³/h.
In US engineering, the CFM (cubic feet per minute) is the standard airflow unit.
Converting between them is essential when integrating European HVAC or industrial ventilation equipment into US building designs or when comparing international fan bids.
A typical data center CRAC (computer room air conditioning) unit from Stulz (German manufacturer) might be rated at 420 m³/min, and the US facility engineer converts to 420 × 35.315 = 14,832 CFM, a large CRAC unit suitable for a high-density data center aisle.
For dust collection and industrial ventilation, a European baghouse or cyclone separator rated at 250 m³/min (15,000 m³/h) corresponds to 8,829 CFM in US terms, in the range of a large Torit or Donaldson dust collector.
A 50 m³/min laboratory fume hood exhaust fan converts to 1,766 CFM, a mid-range laboratory exhaust system.
The m³/min to CFM conversion also appears in compressor engineering: reciprocating and screw compressors from European manufacturers (Atlas Copco, Kaeser, BOGE) are often rated in m³/min FAD (free air delivery), and comparing against a US-manufactured compressor (Ingersoll Rand, Sullair, Gardner Denver) rated in CFM FAD requires this conversion.
A 10 m³/min FAD compressor = 353 CFM, a 50 HP rotary screw compressor.
Note that this conversion handles actual volumetric flow (m³/min → CFM), if the m³/min value is at standard conditions (Nm³/min), the conversion to SCFM requires the additional standard reference condition correction (Nm³ at 0°C vs SCFM at 60°F or 68°F depending on the standard used).
Always verify whether the m³/min value is at actual or standard conditions, the numerical conversion is the same (35.315), but the physical meaning (mass flow) differs.
Real-World Usage Scenarios
International fan procurement for power plant
A US utility is retrofitting a 600 MW coal-fired power plant with new forced-draft (FD) fans. The US FD fan specification was originally 200,000 CFM at 30 inH₂O static pressure. European bidders (Howden, Fläkt Woods, TLT-Turbo) quote their fans in m³/s or m³/h: a Howden FD fan rated at 320,000 m³/h (= 5,333 m³/min = 188,333 CFM) at 7,500 Pa static pressure (= 30 inH₂O) is directly comparable. The bid price is 15% lower than the US competitor, potentially significant savings on a $4 million fan. The conversion from m³/min to CFM (× 35.315) and from Pa to inH₂O (÷ 248.84) allows direct comparison. The fan's mass flow capacity (in lb/s or kg/s) is the same regardless of the volumetric unit, but the rating is conventionally given in m³/min for European bidders and CFM for US bidders. A 1% error in the m³/min to CFM conversion translates to 1% error in the fan flow rating, which corresponds to about 2,000 CFM at this scale, meaningful for matching the air flow requirement to the boiler combustion air demand.
Industry Standards Referenced
Frequently Asked Questions
Is m³/min at actual or standard conditions?
It depends on the context. If the specification says 'm³/min' without qualification, it's typically actual volumetric flow (like ACFM). If it says 'Nm³/min' (normal cubic meters per minute), it's at standard conditions (0°C, 1 atm), analogous to SCFM. The conversion factor (×35.315) is the same regardless, but the physical meaning (actual mass flow vs standardized mass flow) is different. Always check the qualifier: Nm³/min or Sm³/min indicates standard conditions; plain m³/min typically indicates actual conditions at the specified temperature and pressure.
What does this converter do?
This converter performs the unit conversion at standard conditions using the exact conversion factor. The result is displayed with appropriate precision for engineering use.
How accurate is the conversion?
The conversion factor used is exact or to four significant figures depending on the units. For most engineering calculations, the precision is more than sufficient. For precision work, consult the relevant NIST or ISO standards referenced on this page.
Reviewed for accuracy
Verified against international standard length and volume conversion factors · Last reviewed: June 27, 2026
All calculations are for reference only. Always verify with manufacturer data and a qualified engineer for critical applications. Learn about our editorial process.