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Mass Flow Rate

lb/stokg/min

Convert pounds per second (lb/s) to kilograms per minute (kg/min).

Factor1 lb/s = 27.21554 kg/min

Converter

lb/s

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

Result
27.2155kg/min

Rendered to 6 significant figures.

Formula

Formula
kg/min = lb/s × 27.21554

Multiply any value in pounds per second by 27.21554 to obtain the value in kilograms per minute.

Worked example

Convert 1 lb/s to kg/min.

  1. 01Start with 1 lb/s.
  2. 02Multiply by the conversion factor: 1 × 27.21554 = 27.2155 kg/min.
Result1 lb/s = 27.2155 kg/min

Conversion table

lb/skg/min
127.216
254.431
5136.08
10272.16
20544.31
501360.8
1002721.6
2005443.1
50013608
100027216

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/s to kg/min?
1 lb/s equals 27.21554 kg/min. To convert, multiply the value in pounds per second by 27.21554.
How do I convert 1 lb/s to kg/min?
1 lb/s = 27.2155 kg/min. For any value, multiply by 27.21554.
How do I convert kg/min back to lb/s?
Divide by the same factor — or equivalently, multiply by 0.03674371. So 1 kg/min = 0.0367437 lb/s.
When would I need to convert pound per second to kilogram per minute?
Mass flow conversions between lb/s and kg/min 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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