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Volumetric Flow Rate

L/hrtomL/s

Convert litres per hour (L/hr) to millilitres per second (mL/s).

Factor1 L/hr = 0.2777778 mL/s

Converter

L/hr

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

Result
27.7778mL/s

Rendered to 6 significant figures.

Formula

Formula
mL/s = L/hr × 0.2777778

Multiply any value in litres per hour by 0.2777778 to obtain the value in millilitres per second.

Worked example

Convert 100 L/hr to mL/s.

  1. 01Start with 100 L/hr.
  2. 02Multiply by the conversion factor: 100 × 0.2777778 = 27.7778 mL/s.
Result100 L/hr = 27.7778 mL/s

Conversion table

L/hrmL/s
10.27778
20.55556
51.3889
102.7778
205.5556
5013.889
10027.778
20055.556
500138.89
1000277.78

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from L/hr to mL/s?
1 L/hr equals 0.2777778 mL/s. To convert, multiply the value in litres per hour by 0.2777778.
How do I convert 1 L/hr to mL/s?
1 L/hr = 0.277778 mL/s. For any value, multiply by 0.2777778.
How do I convert mL/s back to L/hr?
Divide by the same factor — or equivalently, multiply by 3.6. So 1 mL/s = 3.6 L/hr.
When would I need to convert litre per hour to millilitre per second?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. L/hr to mL/s is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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