Volumetric flow rate.
Liter per Seconds to Cubic Meter per Seconds Converter — L/s to m3/s
Convert Liter per Seconds (L/s) to Cubic Meter per Seconds (m3/s) using the exact conversion factor (1 liter per seconds = 0.001 cubic meter per seconds). See the formula, worked examples, conversion table, unit comparison, and common uses.
Liter per Seconds to Cubic Meter per Seconds converter
Converter
Flow Rate Converter
Convert volumetric flow rates across metric, US, imperial, industrial, and scientific units.
Context values
Some unit families need one extra value for a physically accurate result.
Volumetric flow rate.
Result = input x 0.001 / 1.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Liter per Seconds to Cubic Meter per Seconds
Liter per Seconds and Cubic Meter per Seconds both measure volumetric flow rate — how much volume passes a point over time — used to size pipes and pumps, monitor river or stream discharge, control industrial processes, and set medical infusion rates. Liter per Seconds is typically associated with common in municipal water-utility and industrial flow specifications internationally, while Cubic Meter per Seconds is typically associated with used internationally in hydrology and large-scale water-resource engineering.
Formula
cubic meter per seconds = liter per seconds × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 liter per seconds equals 0.001 base units, and 1 cubic meter per seconds equals 1 base unit, so dividing one by the other gives the direct liter per seconds-to-cubic meter per seconds factor of 0.001.
Simple example
1 L/s × 0.001 = 0.001 m3/s
1 liter per seconds = 0.001 cubic meter per seconds.
Real-world example
60 L/s × 0.001 = 0.06 m3/s
60 liter per seconds = 0.06 cubic meter per seconds.
Conversion table
| Liter per Seconds (L/s) | Cubic Meter per Seconds (m3/s) |
|---|---|
| 0.1 L/s | 0.0001 m3/s |
| 1 L/s | 0.001 m3/s |
| 10 L/s | 0.01 m3/s |
| 60 L/s | 0.06 m3/s |
| 100 L/s | 0.1 m3/s |
| 1,000 L/s | 1 m3/s |
Reverse conversion: Cubic Meter per Seconds to Liter per Seconds
0.001 m3/s × 1000 = 1 L/s
0.001 cubic meter per seconds = 1 liter per seconds.
liter per seconds = cubic meter per seconds × 1000
For a page dedicated to this direction, see Cubic Meter per Seconds to Liter per Seconds.
Liter per Seconds vs. Cubic Meter per Seconds
| Aspect | Liter per Seconds | Cubic Meter per Seconds |
|---|---|---|
| Family | metric derived flow-rate unit | SI coherent derived unit |
| Typical use | Municipal water supply and treatment plant flow rates | Used by hydrologists and water-resource engineers internationally to report river and reservoir discharge at large scales |
| Where it's used | Common in municipal water-utility and industrial flow specifications internationally | Used internationally in hydrology and large-scale water-resource engineering |
Understanding the Liter per Seconds
Liter per Seconds (L/s) measures volumetric flow rate. One liter of volume passing a point every second — used for larger flows than liter-per-minute conveniently describes. It is classified as a metric derived flow-rate unit.
Where it's used: Common in municipal water-utility and industrial flow specifications internationally
L/s vs. L/min. Both measure the same quantity at different time scales; 1 L/s equals 60 L/min. L/s is typically used for larger, continuous industrial or utility flows, while L/min suits smaller household-scale flows.
Uses of the Liter per Seconds today
- Municipal water supply and treatment plant flow rates
- Industrial process flow specifications
- Stream and river discharge measurement at moderate scales
Understanding the Cubic Meter per Seconds
Cubic Meter per Seconds (m3/s) measures volumetric flow rate. The SI coherent unit for volumetric flow rate — one cubic meter of volume passing a point every second. It is classified as a SI coherent derived unit.
Where it's used: Used internationally in hydrology and large-scale water-resource engineering
Uses of the Cubic Meter per Seconds today
- Used by hydrologists and water-resource engineers internationally to report river and reservoir discharge at large scales
Liter per Seconds — sources
- BIPM SI Brochure — Litre and second as accepted units used together to express flow rate.
Cubic Meter per Seconds — sources
- BIPM SI Brochure — Cubic meter per second as the SI coherent derived unit for volumetric flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic meter per seconds are in 1 liter per seconds?
1 liter per seconds equals 0.001 cubic meter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert liter per seconds to cubic meter per seconds?
Multiply the liter per seconds value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert cubic meter per seconds back to liter per seconds?
Use the reverse factor: 1 cubic meter per seconds equals 1,000 liter per seconds. You can also use the swap control in the converter above to flip the direction instantly.
What is a liter per seconds?
Liter per Seconds (L/s) measures volumetric flow rate. One liter of volume passing a point every second — used for larger flows than liter-per-minute conveniently describes. It is classified as a metric derived flow-rate unit.
What is a cubic meter per seconds?
Cubic Meter per Seconds (m3/s) measures volumetric flow rate. The SI coherent unit for volumetric flow rate — one cubic meter of volume passing a point every second. It is classified as a SI coherent derived unit.
Is the liter per seconds to cubic meter per seconds conversion exact?
Yes. Both liter per seconds and cubic meter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.
What is the difference between l/s vs. l/min?
Both measure the same quantity at different time scales; 1 L/s equals 60 L/min. L/s is typically used for larger, continuous industrial or utility flows, while L/min suits smaller household-scale flows.
Where is the liter per seconds still used today?
Common in municipal water-utility and industrial flow specifications internationally