Mass Flow Rate
lb/stost/day
Convert pounds per second (lb/s) to short tons per day (st/day).
Factor1 lb/s = 43.2 st/day
Converter
lb/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
st/day
Rendered to 6 significant figures.
Formula
Formula
st/day = lb/s × 43.2
Multiply any value in pounds per second by 43.2 to obtain the value in short tons per day.
Worked example
Convert 1 lb/s to st/day.
- 01Start with 1 lb/s.
- 02Multiply by the conversion factor: 1 × 43.2 = 43.2 st/day.
Result1 lb/s = 43.2 st/day
Conversion table
| lb/s | st/day |
|---|---|
| 1 | 43.2 |
| 2 | 86.4 |
| 5 | 216 |
| 10 | 432 |
| 20 | 864 |
| 50 | 2160 |
| 100 | 4320 |
| 200 | 8640 |
| 500 | 21600 |
| 1000 | 43200 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/s to st/day?
1 lb/s equals 43.2 st/day. To convert, multiply the value in pounds per second by 43.2.
How do I convert 1 lb/s to st/day?
1 lb/s = 43.2 st/day. For any value, multiply by 43.2.
How do I convert st/day back to lb/s?
Divide by the same factor — or equivalently, multiply by 0.02314815. So 1 st/day = 0.0231481 lb/s.
When would I need to convert pound per second to short ton per day?
Mass flow conversions between lb/s 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).