Volumetric flow rate.
Cubic Meter per Hours to Liter per Seconds Converter — m3/h to L/s
Convert Cubic Meter per Hours (m3/h) to Liter per Seconds (L/s) using the exact conversion factor (1 cubic meter per hours = 0.2777777778 liter per seconds). See the formula, worked examples, conversion table, unit comparison, and common uses.
Cubic Meter per Hours to Liter 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 0.0002777777778 / 0.001.
Flow rate uses cubic meters per second as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Meter per Hours to Liter per Seconds
Cubic Meter per Hours and Liter 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. Cubic Meter per Hours is typically associated with standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US, while Liter per Seconds is typically associated with common in municipal water-utility and industrial flow specifications internationally.
Formula
liter per seconds = cubic meter per hours × 0.277777777778
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic meter per hours equals 0.000277777777778 base units, and 1 liter per seconds equals 0.001 base units, so dividing one by the other gives the direct cubic meter per hours-to-liter per seconds factor of 0.277777777778.
Simple example
1 m3/h × 0.2777777778 = 0.2777777778 L/s
1 cubic meter per hours = 0.2777777778 liter per seconds.
Real-world example
60 m3/h × 0.2777777778 = 16.66666667 L/s
60 cubic meter per hours = 16.66666667 liter per seconds.
Conversion table
| Cubic Meter per Hours (m3/h) | Liter per Seconds (L/s) |
|---|---|
| 0.1 m3/h | 0.0277777778 L/s |
| 1 m3/h | 0.2777777778 L/s |
| 10 m3/h | 2.777777778 L/s |
| 60 m3/h | 16.66666667 L/s |
| 100 m3/h | 27.77777778 L/s |
| 1,000 m3/h | 277.7777778 L/s |
Reverse conversion: Liter per Seconds to Cubic Meter per Hours
0.2777777778 L/s × 3.6 = 1 m3/h
0.2777777778 liter per seconds = 1 cubic meter per hours.
cubic meter per hours = liter per seconds × 3.6
For a page dedicated to this direction, see Liter per Seconds to Cubic Meter per Hours.
Cubic Meter per Hours vs. Liter per Seconds
| Aspect | Cubic Meter per Hours | Liter per Seconds |
|---|---|---|
| Family | metric derived flow-rate unit | metric derived flow-rate unit |
| Typical use | HVAC equipment airflow and liquid-flow ratings | Municipal water supply and treatment plant flow rates |
| Where it's used | Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US | Common in municipal water-utility and industrial flow specifications internationally |
Understanding the Cubic Meter per Hours
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
Where it's used: Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US
Uses of the Cubic Meter per Hours today
- HVAC equipment airflow and liquid-flow ratings
- Industrial pump and system flow specifications
- Building ventilation system design
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
Cubic Meter per Hours — sources
- ISO 5167 (flow measurement standards) — Cubic meters per hour as a standard industrial flow-rate unit.
Liter per Seconds — sources
- BIPM SI Brochure — Litre and second as accepted units used together to express flow rate.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liter per seconds are in 1 cubic meter per hours?
1 cubic meter per hours equals 0.2777777778 liter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic meter per hours to liter per seconds?
Multiply the cubic meter per hours value by 0.2777777778. The converter above does this instantly to whatever precision you set.
How do I convert liter per seconds back to cubic meter per hours?
Use the reverse factor: 1 liter per seconds equals 3.6 cubic meter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic meter per hours?
Cubic Meter per Hours (m3/h) measures volumetric flow rate. One cubic meter of volume passing a point every hour — a common scale for equipment and system flow ratings. It is classified as a metric derived flow-rate unit.
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.
Is the cubic meter per hours to liter per seconds conversion exact?
Yes. Both cubic meter per hours and liter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 0.2777777778 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 cubic meter per hours still used today?
Standard flow-rate unit for HVAC and industrial equipment ratings internationally, outside the US