Authoritative definitions of the International System of Units and SI prefixes.
Unit converters
Flow rate
Enter your values below for a clear, instant result.
Flow rateInstant result
Decimals
Formula result = input × 1 ÷ 0.001. 1 m³/s = 1,000 L/s
Common examples
One value, several units
Litres per second1,000 L/s
Litres per minute60,000 L/min
Cubic metres per hour3,600 m³/h
US gallons per minute15,850.3231 gpm
Cubic feet per minute2,118.88 cfm
Conversion table
| m³/s | L/s |
|---|---|
| 1 m³/s | 1,000 L/s |
| 2 m³/s | 2,000 L/s |
| 5 m³/s | 5,000 L/s |
| 10 m³/s | 10,000 L/s |
| 25 m³/s | 25,000 L/s |
| 50 m³/s | 50,000 L/s |
| 100 m³/s | 100,000 L/s |
Conversion chart
1 m³/s1,000 L/s
5 m³/s5,000 L/s
10 m³/s10,000 L/s
25 m³/s25,000 L/s
50 m³/s50,000 L/s
Worked example
60 litres per minute equals 1 litre per second.
Unit definition
Cubic metres per second (m³/s) One cubic metres per second equals 1 cubic metre per second.
Unit history
Cubic metres per second 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/s to cubic metre per second.
3. Convert the base value to L/s and apply your display precision.
Understand the result before using it
Flow rate expresses volumetric flow per unit time in another unit. 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 × 1 ÷ 0.001
Assumptions
- The source and target selections represent the same physical quantity or supported notation.
- The entered value is valid for the selected relationship and uses the source unit shown.
- Published unit definitions and conventional conversion factors apply under their stated conditions.
Worked example
60 litres per minute equals 1 litre per second.
When to use it
Good uses
- Translate a flow rate value found in a document, specification, recipe, or measurement.
- Compare values reported in different unit systems.
- Check a manual conversion and control the displayed precision.
Limitations
Common mistakes to avoid
- Unit conversion does not account for measurement uncertainty, instrument calibration, or context outside the unit definition.
- Do not add meaningful digits beyond the precision of the original measurement.
- Confirm regulated, safety-critical, laboratory, and contractual values 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
What does the Flow rate converter do?
Flow rate expresses volumetric flow per unit time in another unit. It does not change the physical quantity represented by the input.
What formula does the Flow rate converter use?
result = input × 1 ÷ 0.001
Why can a Flow rate converter result be rounded?
UnitMora calculates with JavaScript double-precision numbers, then formats the result using your selected decimal or significant-figure setting. The unrounded value may contain more digits than are displayed.
What is the most common flow rate conversion mistake?
The most common mistake is selecting a similarly named but different unit or treating a rounded measurement as exact.
Clear answers, without the guesswork
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The formula and context explain how the result was reached.
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