Mass Flow Rate
lb/daytoklb/hr
Convert pounds per day (lb/day) to kilopounds per hour (klb/hr).
Factor1 lb/day = 4.166667e-5 klb/hr
Converter
lb/day
Accepts numbers or expressions, e.g. 150 + 14.7
Result
klb/hr
Rendered to 6 significant figures.
Formula
Formula
klb/hr = lb/day × 4.166667e-5
Multiply any value in pounds per day by 4.166667e-5 to obtain the value in kilopounds per hour.
Worked example
Convert 10000 lb/day to klb/hr.
- 01Start with 10000 lb/day.
- 02Multiply by the conversion factor: 10000 × 4.166667e-5 = 0.416667 klb/hr.
Result10000 lb/day = 0.416667 klb/hr
Conversion table
| lb/day | klb/hr |
|---|---|
| 1 | 4.1667e-5 |
| 2 | 8.3333e-5 |
| 5 | 0.00020833 |
| 10 | 0.00041667 |
| 20 | 0.00083333 |
| 50 | 0.0020833 |
| 100 | 0.0041667 |
| 200 | 0.0083333 |
| 500 | 0.020833 |
| 1000 | 0.041667 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/day to klb/hr?
1 lb/day equals 4.166667e-5 klb/hr. To convert, multiply the value in pounds per day by 4.166667e-5.
How do I convert 1 lb/day to klb/hr?
1 lb/day = 4.16667e-5 klb/hr. For any value, multiply by 4.166667e-5.
How do I convert klb/hr back to lb/day?
Divide by the same factor — or equivalently, multiply by 24000. So 1 klb/hr = 24000 lb/day.
When would I need to convert pound per day to kilopound per hour?
Mass flow conversions between lb/day and klb/hr 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).