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Mass Flow Rate

lb/mintost/hr

Convert pounds per minute (lb/min) to short tons per hour (st/hr).

Factor1 lb/min = 0.03 st/hr

Converter

lb/min

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

Result
3st/hr

Rendered to 6 significant figures.

Formula

Formula
st/hr = lb/min × 0.03

Multiply any value in pounds per minute by 0.03 to obtain the value in short tons per hour.

Worked example

Convert 100 lb/min to st/hr.

  1. 01Start with 100 lb/min.
  2. 02Multiply by the conversion factor: 100 × 0.03 = 3 st/hr.
Result100 lb/min = 3 st/hr

Conversion table

lb/minst/hr
10.03
20.06
50.15
100.3
200.6
501.5
1003
2006
50015
100030

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/min to st/hr?
1 lb/min equals 0.03 st/hr. To convert, multiply the value in pounds per minute by 0.03.
How do I convert 1 lb/min to st/hr?
1 lb/min = 0.03 st/hr. For any value, multiply by 0.03.
How do I convert st/hr back to lb/min?
Divide by the same factor — or equivalently, multiply by 33.33333. So 1 st/hr = 33.3333 lb/min.
When would I need to convert pound per minute to short ton per hour?
Mass flow conversions between lb/min and st/hr 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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