Convert flow rate units — m³/s, L/s, L/min, ft³/s, gallon/min and more.
| Unit | Name | Value |
|---|---|---|
| m³/s | Cubic Meter/Second | 0.000016667 |
| m³/min | Cubic Meter/Minute | 0.001 |
| m³/h | Cubic Meter/Hour | 0.059953237 |
| L/s | Liter/Second | 0.016667 |
| ft³/s | Cubic Foot/Second | 0.00058858636 |
| ft³/min | Cubic Foot/Minute | 0.035311441 |
| gal/min | Gallon/Minute (US) | 0.26417816 |
| gal/h | Gallon/Hour (US) | 15.850689 |
Formula: CFM = L/min × 0.03531
Multiply any L/min value by 0.03531 to get CFM.
Reverse: L/min = CFM × 28.32
Common flow rate values — factor: 1 L/min = 0.03531 CFM
| L/min (L/min) | CFM (CFM) | Context |
|---|---|---|
| 0.01 L/min | 0.0003531 CFM | Drip |
| 0.1 L/min | 0.003531 CFM | IV drip |
| 1 L/min | 0.03531 CFM | Medical oxygen |
| 5 L/min | 0.1766 CFM | Resting heart |
| 15 L/min | 0.5297 CFM | Max O₂ therapy |
| 60 L/min | 2.119 CFM | 1 L/s |
| 100 L/min | 3.531 CFM | Pool pump |
| 300 L/min | 10.59 CFM | Industrial |
| 600 L/min | 21.19 CFM | 10 L/s |
| 1000 L/min | 35.31 CFM | Large pump |
| 1e+04 L/min | 353.1 CFM | Industrial plant |
| 6e+04 L/min | 2119 CFM | 1 m³/s |
| 6e+05 L/min | 2.119e+04 CFM | 10 m³/s |
| 1e+06 L/min | 3.531e+04 CFM | Very large |
| 1e+07 L/min | 3.531e+05 CFM | River |
1 L/min = 0.03531 CFM.
m³/s × 1000 = L/s × 60 = L/min. Use this chain for quick conversions.
Multiply result by 28.32 to recover the original L/min value.
Designs pumps, pipes, and water distribution systems with flow rates in m³/s, L/s, and GPM.
Specifies air handling units and ductwork in CFM (ft³/min) and m³/h for North American and European projects.
Monitors and controls treatment processes with flow rates in m³/h, L/s, and MGD.
Designs sprinkler systems with required flows in GPM and L/min per NFPA standards.
Measures river and groundwater flows in m³/s (m) and ft³/s (cfs) for flood modeling and water resource planning.
Configures ventilators and oxygen delivery systems with flow rates specified in L/min.
Liters per minute (L/min) is the standard flow unit in medicine, laboratory equipment, gas regulators, and small pump specifications. It is the most practical scale for flows measured in minutes.
Medical oxygen is prescribed in L/min (1–15 L/min depending on condition). IV drip rates are controlled in mL/min (0.001–1 L/min). Laboratory peristaltic pumps are rated in L/min. Vehicle fuel consumption during testing is measured in L/min.
Interesting fact: A healthy adult kidney filters about 120 mL/min (0.12 L/min) of blood through the glomerulus — this glomerular filtration rate (GFR) is a key indicator of kidney function and decreases with age and disease.
Cubic feet per minute (CFM) is the dominant airflow unit in North American HVAC, ventilation, and pneumatic systems. One CFM = 0.000472 m³/s = 28.32 L/min.
HVAC systems in the US are universally specified in CFM: a typical bedroom requires 50–100 CFM of ventilation; a commercial kitchen exhaust hood needs 300–1,500 CFM; a large data center cooling system may require 100,000+ CFM.
Interesting fact: The term CFM is so entrenched in US building practice that even metric-preferring engineers typically specify airflows in CFM for North American projects. Air compressors are rated in CFM at a specified pressure (e.g., '10 CFM @ 90 psi').
Converting L/min to CFM is essential across hydraulic engineering, HVAC, water treatment, fire protection, and medicine. SI units (m³/s, L/s) are standard in science; European engineering uses m³/h; US systems use GPM and CFM; medical applications use L/min.
Quick reference: 10 L/min = 0.3531 CFM. Reverse: 1 CFM = 28.32 L/min. Factor: 1 L/min = 0.03531 CFM.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.