Mass Flow Rate
lb/daytomg/hr
Convert pounds per day (lb/day) to milligrams per hour (mg/hr).
Factor1 lb/day = 18899.68 mg/hr
Converter
lb/day
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mg/hr
Rendered to 6 significant figures.
Formula
Formula
mg/hr = lb/day × 18899.68
Multiply any value in pounds per day by 18899.68 to obtain the value in milligrams per hour.
Worked example
Convert 1 lb/day to mg/hr.
- 01Start with 1 lb/day.
- 02Multiply by the conversion factor: 1 × 18899.68 = 18899.7 mg/hr.
Result1 lb/day = 18899.7 mg/hr
Conversion table
| lb/day | mg/hr |
|---|---|
| 1 | 18900 |
| 2 | 37799 |
| 5 | 94498 |
| 10 | 1.8900e+5 |
| 20 | 3.7799e+5 |
| 50 | 9.4498e+5 |
| 100 | 1.8900e+6 |
| 200 | 3.7799e+6 |
| 500 | 9.4498e+6 |
| 1000 | 1.89e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/day to mg/hr?
1 lb/day equals 18899.68 mg/hr. To convert, multiply the value in pounds per day by 18899.68.
How do I convert 1 lb/day to mg/hr?
1 lb/day = 18899.7 mg/hr. For any value, multiply by 18899.68.
How do I convert mg/hr back to lb/day?
Divide by the same factor — or equivalently, multiply by 5.291094e-5. So 1 mg/hr = 5.29109e-5 lb/day.
When would I need to convert pound per day to milligram per hour?
Mass flow conversions between lb/day and mg/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).