Mass Flow Rate
g/hrtomg/s
Convert grams per hour (g/hr) to milligrams per second (mg/s).
Factor1 g/hr = 0.2777778 mg/s
Converter
g/hr
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mg/s
Rendered to 6 significant figures.
Formula
Formula
mg/s = g/hr × 0.2777778
Multiply any value in grams per hour by 0.2777778 to obtain the value in milligrams per second.
Worked example
Convert 1 g/hr to mg/s.
- 01Start with 1 g/hr.
- 02Multiply by the conversion factor: 1 × 0.2777778 = 0.277778 mg/s.
Result1 g/hr = 0.277778 mg/s
Conversion table
| g/hr | mg/s |
|---|---|
| 1 | 0.27778 |
| 2 | 0.55556 |
| 5 | 1.3889 |
| 10 | 2.7778 |
| 20 | 5.5556 |
| 50 | 13.889 |
| 100 | 27.778 |
| 200 | 55.556 |
| 500 | 138.89 |
| 1000 | 277.78 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from g/hr to mg/s?
1 g/hr equals 0.2777778 mg/s. To convert, multiply the value in grams per hour by 0.2777778.
How do I convert 1 g/hr to mg/s?
1 g/hr = 0.277778 mg/s. For any value, multiply by 0.2777778.
How do I convert mg/s back to g/hr?
Divide by the same factor — or equivalently, multiply by 3.6. So 1 mg/s = 3.6 g/hr.
When would I need to convert gram per hour to milligram per second?
Mass flow conversions between g/hr and mg/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).