Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Cubic metres per hour to Cubic metres per second
Convert m³/h to m³/s instantly, then review the formula, assumptions, and rounding guidance.
Flow rateInstant result
Decimals
Formula result = input × 0.0002777777777777778 ÷ 1. 1 m³/h = 0.0003 m³/s
Common examples
One value, several units
Cubic metres per second0.0003 m³/s
Litres per second0.2778 L/s
Litres per minute16.6667 L/min
US gallons per minute4.4029 gpm
Cubic feet per minute0.5886 cfm
Conversion table
| m³/h | m³/s |
|---|---|
| 1 m³/h | 0.0003 m³/s |
| 2 m³/h | 0.0006 m³/s |
| 5 m³/h | 0.0014 m³/s |
| 10 m³/h | 0.0028 m³/s |
| 25 m³/h | 0.0069 m³/s |
| 50 m³/h | 0.0139 m³/s |
| 100 m³/h | 0.0278 m³/s |
Conversion chart
1 m³/h0.0003 m³/s
5 m³/h0.0014 m³/s
10 m³/h0.0028 m³/s
25 m³/h0.0069 m³/s
50 m³/h0.0139 m³/s
Worked example
60 litres per minute equals 1 litre per second.
Unit definition
Cubic metres per hour (m³/h) One cubic metres per hour equals 0.000277777777778 cubic metre per second.
Unit history
Cubic metres per hour is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert m³/h to cubic metre per second.
3. Convert the base value to m³/s and apply your display precision.
Understand the result before using it
Cubic metres per hour to Cubic metres per second converts a value measured in Cubic metres per hour (m³/h) into the equivalent value in Cubic metres per second (m³/s). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 0.0002777777777777778 ÷ 1
Assumptions
- Cubic metres per hour and Cubic metres per second represent the same flow rate quantity.
- The input is expressed in m³/h; the output is expressed in m³/s.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 m³/h = 0.000277777777778 m³/s. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a m³/h measurement in a document that expects m³/s.
- Compare a cubic metres per hour value with a value reported in cubic metres per second.
- Check the m³/h-to-m³/s arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse m³/h with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Cubic metres per hour to Cubic metres per second?
result = input × 0.0002777777777777778 ÷ 1 Using the displayed relationship, 1 m³/h equals 0.000277777777778 m³/s.
How many Cubic metres per second are in one Cubic metres per hour?
One Cubic metres per hour is 0.000277777777778 Cubic metres per second. The displayed digits may be rounded.
Can I reverse the m³/h to m³/s conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts m³/s back to m³/h.
Is the Cubic metres per hour to Cubic metres per second result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.