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Mass Flow Rate

st/hrtolb/s

Convert short tons per hour (st/hr) to pounds per second (lb/s).

Factor1 st/hr = 0.5555556 lb/s

Converter

st/hr

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

Result
55.5556lb/s

Rendered to 6 significant figures.

Formula

Formula
lb/s = st/hr × 0.5555556

Multiply any value in short tons per hour by 0.5555556 to obtain the value in pounds per second.

Worked example

Convert 100 st/hr to lb/s.

  1. 01Start with 100 st/hr.
  2. 02Multiply by the conversion factor: 100 × 0.5555556 = 55.5556 lb/s.
Result100 st/hr = 55.5556 lb/s

Conversion table

st/hrlb/s
10.55556
21.1111
52.7778
105.5556
2011.111
5027.778
10055.556
200111.11
500277.78
1000555.56

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from st/hr to lb/s?
1 st/hr equals 0.5555556 lb/s. To convert, multiply the value in short tons per hour by 0.5555556.
How do I convert 1 st/hr to lb/s?
1 st/hr = 0.555556 lb/s. For any value, multiply by 0.5555556.
How do I convert lb/s back to st/hr?
Divide by the same factor — or equivalently, multiply by 1.8. So 1 lb/s = 1.8 st/hr.
When would I need to convert short ton per hour to pound per second?
Mass flow conversions between st/hr and lb/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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