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: GPM = L/min × 0.2642
Multiply any L/min value by 0.2642 to get GPM.
Reverse: L/min = GPM × 3.785
Common flow rate values — factor: 1 L/min = 0.2642 GPM
| L/min (L/min) | GPM (GPM) | Context |
|---|---|---|
| 0.01 L/min | 0.002642 GPM | Drip |
| 0.1 L/min | 0.02642 GPM | IV drip |
| 1 L/min | 0.2642 GPM | Medical oxygen |
| 5 L/min | 1.321 GPM | Resting heart |
| 15 L/min | 3.963 GPM | Max O₂ therapy |
| 60 L/min | 15.85 GPM | 1 L/s |
| 100 L/min | 26.42 GPM | Pool pump |
| 300 L/min | 79.25 GPM | Industrial |
| 600 L/min | 158.5 GPM | 10 L/s |
| 1000 L/min | 264.2 GPM | Large pump |
| 1e+04 L/min | 2642 GPM | Industrial plant |
| 6e+04 L/min | 1.585e+04 GPM | 1 m³/s |
| 6e+05 L/min | 1.585e+05 GPM | 10 m³/s |
| 1e+06 L/min | 2.642e+05 GPM | Very large |
| 1e+07 L/min | 2.642e+06 GPM | River |
1 L/min = 0.2642 GPM.
m³/s × 1000 = L/s × 60 = L/min. Use this chain for quick conversions.
Multiply result by 3.785 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.
Gallons per minute (GPM) is the standard flow unit for pumps, plumbing, fire suppression, and irrigation systems in the United States. One US GPM = 6.309 × 10⁻⁵ m³/s = 3.785 L/min.
US pump specifications universally use GPM: a residential well pump delivers 5–20 GPM; a fire suppression sprinkler system requires 7–26 GPM per head; a municipal fire hydrant delivers 500–1,500 GPM. Fuel transfer pumps at gas stations operate at 10–15 GPM.
Interesting fact: The US uses about 345 billion gallons of freshwater per day — approximately 240 million GPM. Of this, about 41% goes to thermoelectric power plant cooling, 37% to irrigation, and 13% to public water supplies.
Converting L/min to GPM 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 = 2.642 GPM. Reverse: 1 GPM = 3.785 L/min. Factor: 1 L/min = 0.2642 GPM.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.