Mass Flow Rate
st/daytolb/s
Convert short tons per day (st/day) to pounds per second (lb/s).
Factor1 st/day = 0.02314815 lb/s
Converter
st/day
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lb/s
Rendered to 6 significant figures.
Formula
Formula
lb/s = st/day × 0.02314815
Multiply any value in short tons per day by 0.02314815 to obtain the value in pounds per second.
Worked example
Convert 1000 st/day to lb/s.
- 01Start with 1000 st/day.
- 02Multiply by the conversion factor: 1000 × 0.02314815 = 23.1481 lb/s.
Result1000 st/day = 23.1481 lb/s
Conversion table
| st/day | lb/s |
|---|---|
| 1 | 0.023148 |
| 2 | 0.046296 |
| 5 | 0.11574 |
| 10 | 0.23148 |
| 20 | 0.46296 |
| 50 | 1.1574 |
| 100 | 2.3148 |
| 200 | 4.6296 |
| 500 | 11.574 |
| 1000 | 23.148 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from st/day to lb/s?
1 st/day equals 0.02314815 lb/s. To convert, multiply the value in short tons per day by 0.02314815.
How do I convert 1 st/day to lb/s?
1 st/day = 0.0231481 lb/s. For any value, multiply by 0.02314815.
How do I convert lb/s back to st/day?
Divide by the same factor — or equivalently, multiply by 43.2. So 1 lb/s = 43.2 st/day.
When would I need to convert short ton per day to pound per second?
Mass flow conversions between st/day 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).