Convert Cubic Meters per Second to Liters per Second
1 cubic meter per second (m³/s) equals 1000 liters per second (L/s).
1 m³/s = 1000 L/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic meter per second to liter per second converter to paste a column from Excel.
How to Convert Cubic Meter per Second to Liter per Second
- 1 m³/s = 1000 L/s
- 1 L/s = 0.001 m³/s
- Example: convert 15 m³/s to L/s: 15 m³/s = 15 × 1000 L/s = 15000 L/s
Formula
L/s = m³/s × 1000
Derivation from SI units:
- 1 m³/s = 1 m³ ÷ 1 s
- 1 L/s = 10⁻³ m³ ÷ 1 s
Both units are defined exactly, so the factor is exact. Cubic Meter per Second definition: cubic meter per second; Liter per Second definition: liter per second.
Worked examples
- A reading of 0.5 m³/s converts to 500 L/s.
0.5 m³/s × 1000 = 500 L/s - A value of 10 m³/s is 10000 L/s.
10 m³/s × 1000 = 10000 L/s
Cubic Meter per Second to Liter per Second conversion table
| Cubic Meters per Second (m³/s) | Liters per Second (L/s) |
|---|---|
| 0.001 m³/s | 1 L/s |
| 0.01 m³/s | 10 L/s |
| 0.05 m³/s | 50 L/s |
| 0.1 m³/s | 100 L/s |
| 0.25 m³/s | 250 L/s |
| 0.5 m³/s | 500 L/s |
| 0.944 m³/s | 944 L/s |
| 1 m³/s | 1000 L/s |
| 2 m³/s | 2000 L/s |
| 5 m³/s | 5000 L/s |
| 10 m³/s | 10000 L/s |
| 25 m³/s | 25000 L/s |
| 50 m³/s | 50000 L/s |
| 100 m³/s | 100000 L/s |
| 1000 m³/s | 1000000 L/s |
Where it's used
Cubic Meters per Second are used for river and channel discharge, while liters per second appear in ventilation rates per person (ASHRAE 62.1, EN 16798). Both measure volumetric flow rate (volume per unit time), so the conversion is a fixed factor.
Cubic Meter per Second to other flow rate units
| Conversion | 1 m³/s equals |
|---|---|
| cubic meter per second to cubic meter per hour | 3600 m³/h |
| cubic meter per second to liter per second | 1000 L/s |
| cubic meter per second to liter per minute | 60000 L/min |
| cubic meter per second to cubic centimeter per second | 1000000 cm³/s |
| cubic meter per second to cubic centimeter per minute | 60000000 cm³/min |
| cubic meter per second to sccm | 60000000 sccm |
| cubic meter per second to SLPM | 60000 SLPM |
| cubic meter per second to cubic foot per minute | 2118.880003 CFM |
| cubic meter per second to US gallon per minute | 15850.32314 GPM |
Frequently asked questions
How many liters per second are in 1 cubic meter per second?
1 m³/s = 1000 L/s.
How do I convert cubic meters per second to liters per second?
Multiply the value in m³/s by 1000. For example, 15 m³/s × 1000 = 15000 L/s.
Is the m³/s to L/s conversion exact?
Yes. Both units are defined exactly, and 1 m³/s is exactly 1000 L/s.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2, coherent derived units.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (litre).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Cubic Meters per Second to Liters per Second. Retrieved October 17, 2026, from https://scientificconverters.com/flow-rate/cubic-meters-per-second-to-liters-per-second/
IEEE
Scientific Converters, "Convert Cubic Meters per Second to Liters per Second," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/flow-rate/cubic-meters-per-second-to-liters-per-second/