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Mass Flow Rate

kg/hrtokg/s

Convert kilograms per hour (kg/hr) to kilograms per second (kg/s).

Factor1 kg/hr = 0.0002777778 kg/s

Converter

kg/hr

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

Result
1kg/s

Rendered to 6 significant figures.

Formula

Formula
kg/s = kg/hr × 0.0002777778

Multiply any value in kilograms per hour by 0.0002777778 to obtain the value in kilograms per second.

Worked example

Convert 3600 kg/hr to kg/s.

  1. 01Start with 3600 kg/hr.
  2. 02Multiply by the conversion factor: 3600 × 0.0002777778 = 1 kg/s.
Result3600 kg/hr = 1 kg/s

Conversion table

kg/hrkg/s
10.00027778
20.00055556
50.0013889
100.0027778
200.0055556
500.013889
1000.027778
2000.055556
5000.13889
10000.27778

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kg/hr to kg/s?
1 kg/hr equals 0.0002777778 kg/s. To convert, multiply the value in kilograms per hour by 0.0002777778.
How do I convert 1 kg/hr to kg/s?
1 kg/hr = 0.000277778 kg/s. For any value, multiply by 0.0002777778.
How do I convert kg/s back to kg/hr?
Divide by the same factor — or equivalently, multiply by 3600. So 1 kg/s = 3600 kg/hr.
When would I need to convert kilogram per hour to kilogram per second?
Mass flow conversions between kg/hr and kg/s are common in material balances, process stream summaries, bulk solids handling, custody transfer, and equipment sizing where kg/hr, t/hr, lb/hr, and lb/s may all appear in different datasheets or vendor documents.
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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