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Mass Flow Rate

lb/mintost/day

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

Factor1 lb/min = 0.72 st/day

Converter

lb/min

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

Result
7.2st/day

Rendered to 6 significant figures.

Formula

Formula
st/day = lb/min × 0.72

Multiply any value in pounds per minute by 0.72 to obtain the value in short tons per day.

Worked example

Convert 10 lb/min to st/day.

  1. 01Start with 10 lb/min.
  2. 02Multiply by the conversion factor: 10 × 0.72 = 7.2 st/day.
Result10 lb/min = 7.2 st/day

Conversion table

lb/minst/day
10.72
21.44
53.6
107.2
2014.4
5036
10072
200144
500360
1000720

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from lb/min to st/day?
1 lb/min equals 0.72 st/day. To convert, multiply the value in pounds per minute by 0.72.
How do I convert 1 lb/min to st/day?
1 lb/min = 0.72 st/day. For any value, multiply by 0.72.
How do I convert st/day back to lb/min?
Divide by the same factor — or equivalently, multiply by 1.388889. So 1 st/day = 1.38889 lb/min.
When would I need to convert pound per minute to short ton per day?
Mass flow conversions between lb/min and st/day 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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