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Flow Rate

L/stom³/hr

Convert litres per second (L/s) to cubic metres per hour (m³/hr).

Factor1 L/s = 3.6 m³/hr

Converter

L/s

Accepts numbers or expressions, e.g. 150 + 14.7

Result
90m³/hr

Rendered to 6 significant figures.

Formula

Formula
m³/hr = L/s × 3.6

Multiply any value in litres per second by 3.6 to obtain the value in cubic metres per hour.

Worked example

Convert 25 L/s to m³/hr.

  1. 01Start with 25 L/s.
  2. 02Multiply by the conversion factor: 25 × 3.6 = 90 m³/hr.
Result25 L/s = 90 m³/hr

Conversion table

L/sm³/hr
13.6
27.2
518
1036
2072
50180
100360
200720
5001800
10003600

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from L/s to m³/hr?
1 L/s equals 3.6 m³/hr. To convert, multiply the value in litres per second by 3.6.
How do I convert 1 L/s to m³/hr?
1 L/s = 3.6 m³/hr. For any value, multiply by 3.6.
How do I convert m³/hr back to L/s?
Divide by the same factor — or equivalently, multiply by 0.2777778. So 1 m³/hr = 0.277778 L/s.
When would I need to convert litre per second to cubic metre per hour?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. L/s to m³/hr is a frequently needed conversion for hydraulic sizing.
Is the conversion exact?
Yes. Both L/s and m³/hr are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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