Mass Flow Rate
g/hrtomg/hr
Convert grams per hour (g/hr) to milligrams per hour (mg/hr).
Factor1 g/hr = 1000 mg/hr
Converter
g/hr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mg/hr
Rendered to 6 significant figures.
Formula
Formula
mg/hr = g/hr × 1000
Multiply any value in grams per hour by 1000 to obtain the value in milligrams per hour.
Worked example
Convert 1 g/hr to mg/hr.
- 01Start with 1 g/hr.
- 02Multiply by the conversion factor: 1 × 1000 = 1000 mg/hr.
Result1 g/hr = 1000 mg/hr
Conversion table
| g/hr | mg/hr |
|---|---|
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
| 100 | 1.0000e+5 |
| 200 | 2.0000e+5 |
| 500 | 5.0000e+5 |
| 1000 | 1.0000e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from g/hr to mg/hr?
1 g/hr equals 1000 mg/hr. To convert, multiply the value in grams per hour by 1000.
How do I convert 1 g/hr to mg/hr?
1 g/hr = 1000 mg/hr. For any value, multiply by 1000.
How do I convert mg/hr back to g/hr?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 mg/hr = 0.001 g/hr.
When would I need to convert gram per hour to milligram per hour?
Mass flow conversions between g/hr 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).