Convert flow rate units — m³/s, L/s, L/min, ft³/s, gallon/min and more.
| Unit | Name | Value |
|---|---|---|
| m³/min | Cubic Meter/Minute | 59.9988 |
| m³/h | Cubic Meter/Hour | 3597.1223 |
| L/s | Liter/Second | 1000 |
| L/min | Liter/Minute | 59998.8 |
| ft³/s | Cubic Foot/Second | 35.314475 |
| ft³/min | Cubic Foot/Minute | 2118.6441 |
| gal/min | Gallon/Minute (US) | 15850.372 |
| gal/h | Gallon/Hour (US) | 951022.35 |
Formula: L/s = m³/s × 1000
Multiply any m³/s value by 1000 to get L/s.
Reverse: m³/s = L/s × 0.001
Common flow rate values — factor: 1 m³/s = 1000 L/s
| m³/s (m³/s) | L/s (L/s) | Context |
|---|---|---|
| 1.000e-06 m³/s | 0.001 L/s | Dripping faucet |
| 1.000e-05 m³/s | 0.01 L/s | Trickle |
| 0.0001 m³/s | 0.1 L/s | Small stream |
| 0.001 m³/s | 1 L/s | 1 L/s flow |
| 0.01 m³/s | 10 L/s | 10 L/s pump |
| 0.083 m³/s | 83 L/s | 5 L/s heart |
| 0.1 m³/s | 100 L/s | 100 L/s |
| 1 m³/s | 1000 L/s | Large pump |
| 10 m³/s | 1e+04 L/s | Small river |
| 100 m³/s | 1e+05 L/s | Large river |
| 1000 m³/s | 1e+06 L/s | Major river |
| 1e+04 m³/s | 1e+07 L/s | Large river system |
| 1e+05 m³/s | 1e+08 L/s | Amazon fraction |
| 2.15e+05 m³/s | 2.15e+08 L/s | Amazon River |
| 1e+06 m³/s | 1.000e+09 L/s | Extreme |
m³/s × 1,000 = L/s. 1 m³ = 1,000 liters.
1 m³/s = 1,000 L/s. 0.001 m³/s = 1 L/s.
L/s ÷ 1,000 = m³/s.
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.
Cubic meters per second (m³/s) is the SI unit of volumetric flow rate, defined as the volume of fluid passing a point per second. It is used in hydrology, hydraulic engineering, and industrial process engineering where large-scale flows are measured.
River flows are commonly expressed in m³/s: the Amazon averages about 215,000 m³/s; the Ganges about 12,000 m³/s; a large municipal water main might carry 1–10 m³/s. The SI unit simplifies dimensional analysis with pressure (Pa) and energy (J).
Interesting fact: The Amazon River discharges more freshwater into the ocean than the next seven largest rivers combined. Its flow of ~215,000 m³/s equals about 215 billion liters per second — enough to fill an Olympic swimming pool in less than 1.25 milliseconds.
Liters per second (L/s) is widely used in water supply engineering, fire protection, and irrigation where liter-scale flows are practical. One L/s = 0.001 m³/s = 60 L/min.
Fire hoses typically deliver 7–25 L/s. Municipal water distribution systems are designed for flows in L/s. Swimming pool filtration systems run at 1–10 L/s. A garden hose delivers about 0.3 L/s.
Interesting fact: The human heart pumps about 0.083 L/s (5 L/min) at rest, rising to 0.333–0.5 L/s (20–30 L/min) during intense exercise. Over a lifetime, the heart pumps approximately 200 million liters of blood.
Converting m³/s to L/s 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 m³/s = 1e+04 L/s. Reverse: 1 L/s = 0.001 m³/s. Factor: 1 m³/s = 1000 L/s.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.