Mass Flow Rate
lb/stolb/day
Convert pounds per second (lb/s) to pounds per day (lb/day).
Factor1 lb/s = 86400 lb/day
Converter
lb/s
Accepts numbers or expressions, e.g. 150 + 14.7
Result
lb/day
Rendered to 6 significant figures.
Formula
Formula
lb/day = lb/s × 86400
Multiply any value in pounds per second by 86400 to obtain the value in pounds per day.
Worked example
Convert 1 lb/s to lb/day.
- 01Start with 1 lb/s.
- 02Multiply by the conversion factor: 1 × 86400 = 86400 lb/day.
Result1 lb/s = 86400 lb/day
Conversion table
| lb/s | lb/day |
|---|---|
| 1 | 86400 |
| 2 | 1.7280e+5 |
| 5 | 4.3200e+5 |
| 10 | 8.6400e+5 |
| 20 | 1.7280e+6 |
| 50 | 4.3200e+6 |
| 100 | 8.6400e+6 |
| 200 | 1.728e+7 |
| 500 | 4.32e+7 |
| 1000 | 8.64e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/s to lb/day?
1 lb/s equals 86400 lb/day. To convert, multiply the value in pounds per second by 86400.
How do I convert 1 lb/s to lb/day?
1 lb/s = 86400 lb/day. For any value, multiply by 86400.
How do I convert lb/day back to lb/s?
Divide by the same factor — or equivalently, multiply by 1.157407e-5. So 1 lb/day = 1.15741e-5 lb/s.
When would I need to convert pound per second to pound per day?
Mass flow conversions between lb/s and lb/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).