This converter turns cubic meters per second into liters per second instantly, using the exact factor 1 cubic meter per second = 1000 liters per second. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The SI unit of volumetric flow, used for rivers and large ducts. Used for plumbing design and compressed air.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
cubic meters per second- The amount you are converting, measured in cubic meters per second
1000- The exact number of liters per second in one cubic meter per second
liters per second- The converted result
How it works, step by step
- Enter the number of cubic meters per second you want to convert.
- The value is multiplied by 1000, the exact conversion factor.
- The result is displayed in liters per second, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 cubic meters per second
Multiply 5 by 1000. That gives 5,000 liters per second. A quick sanity check: one cubic meter per second is larger than one liter per second, so the number should get bigger — and it does.
Converting 72 cubic meters per second
72 × 1000 = 72,000 liters per second. Working backwards, 72,000 ÷ 1000 returns 72 cubic meters per second, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many liters per second are in one cubic meter per second?
Exactly 1000. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert cubic meters per second to liters per second?
Liters Per Second = cubic meters per second × 1000. To reverse it, divide instead: cubic meters per second = liters per second ÷ 1000, which is the same as multiplying by 0.001.
Is the cubic meter per second bigger than the liter per second?
Yes. One cubic meter per second equals 1000 liters per second, so it is the larger unit.
Why does my answer differ slightly from other cubic-meters-per-second to liters-per-second converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a cubic meter per second?
The SI unit of volumetric flow, used for rivers and large ducts.
What is a liter per second?
Used for plumbing design and compressed air.
Cubic Meters Per Second to liters per second reference table
| Cubic Meters Per Second | Liters Per Second |
|---|---|
| 0.5 m³/s | 500 L/s |
| 1 m³/s | 1,000 L/s |
| 2 m³/s | 2,000 L/s |
| 3 m³/s | 3,000 L/s |
| 5 m³/s | 5,000 L/s |
| 10 m³/s | 10,000 L/s |
| 15 m³/s | 15,000 L/s |
| 20 m³/s | 20,000 L/s |
| 25 m³/s | 25,000 L/s |
| 50 m³/s | 50,000 L/s |
| 75 m³/s | 75,000 L/s |
| 100 m³/s | 100,000 L/s |
| 250 m³/s | 250,000 L/s |
| 500 m³/s | 500,000 L/s |
| 1000 m³/s | 1,000,000 L/s |
Exact factor: 1 cubic meter per second = 1000 liters per second. Values rounded for display.