Volumetric flow rate.
Cubic Millimeter per Hours to Liter per Seconds Converter — mm3/h to L/s
Convert Cubic Millimeter per Hours (mm3/h) to Liter per Seconds (L/s) using the exact conversion factor (1 cubic millimeter per hours = 2.777778e-10 liter per seconds). See the formula, worked examples, conversion table, and common uses.
Cubic Millimeter 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 2.77777778e-13 / 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 Millimeter per Hours to Liter per Seconds
Cubic Millimeter 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. Both are volumetric flow rate units.
Formula
liter per seconds = cubic millimeter per hours × 2.777778e-10
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic millimeter per hours equals 2.777778e-13 base units, and 1 liter per seconds equals 0.001 base units, so dividing one by the other gives the direct cubic millimeter per hours-to-liter per seconds factor of 2.777778e-10.
Simple example
1 mm3/h × 2.777778e-10 = 2.777778e-10 L/s
1 cubic millimeter per hours = 2.777778e-10 liter per seconds.
Real-world example
60 mm3/h × 2.777778e-10 = 1.666667e-8 L/s
60 cubic millimeter per hours = 1.666667e-8 liter per seconds.
Conversion table
| Cubic Millimeter per Hours (mm3/h) | Liter per Seconds (L/s) |
|---|---|
| 0.1 mm3/h | 2.777778e-11 L/s |
| 1 mm3/h | 2.777778e-10 L/s |
| 10 mm3/h | 2.777778e-9 L/s |
| 60 mm3/h | 1.666667e-8 L/s |
| 100 mm3/h | 2.777778e-8 L/s |
| 1,000 mm3/h | 2.777778e-7 L/s |
Reverse conversion: Liter per Seconds to Cubic Millimeter per Hours
2.777778e-10 L/s × 3600000000 = 1.00000008 mm3/h
2.777778e-10 liter per seconds = 1.00000008 cubic millimeter per hours.
cubic millimeter per hours = liter per seconds × 3600000000
For a page dedicated to this direction, see Liter per Seconds to Cubic Millimeter per Hours.
Understanding the Cubic Millimeter per Hours (mm3/h)
Volumetric flow rate.
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
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 millimeter per hours?
1 cubic millimeter per hours equals 2.777778e-10 liter per seconds, using the exact defined conversion factor rather than an estimate.
How do I convert cubic millimeter per hours to liter per seconds?
Multiply the cubic millimeter per hours value by 2.777778e-10. The converter above does this instantly to whatever precision you set.
How do I convert liter per seconds back to cubic millimeter per hours?
Use the reverse factor: 1 liter per seconds equals 3,600,000,000 cubic millimeter per hours. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic millimeter per hours?
Cubic Millimeter per Hours (mm3/h) is a unit of flow rate.
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 millimeter per hours to liter per seconds conversion exact?
Yes. Both cubic millimeter per hours and liter per seconds are defined by fixed standards rather than physical artifacts, so the factor of 2.777778e-10 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.