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Mass Flow Rate

mg/hrtokg/hr

Convert milligrams per hour (mg/hr) to kilograms per hour (kg/hr).

Factor1 mg/hr = 1e-6 kg/hr

Converter

mg/hr

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1kg/hr

Rendered to 6 significant figures.

Formula

Formula
kg/hr = mg/hr × 1e-6

Multiply any value in milligrams per hour by 1e-6 to obtain the value in kilograms per hour.

Worked example

Convert 1.00000e+6 mg/hr to kg/hr.

  1. 01Start with 1.00000e+6 mg/hr.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 kg/hr.
Result1.00000e+6 mg/hr = 1 kg/hr

Conversion table

mg/hrkg/hr
11e-6
22e-6
55e-6
101e-5
202e-5
505e-5
1000.0001
2000.0002
5000.0005
10000.001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from mg/hr to kg/hr?
1 mg/hr equals 1e-6 kg/hr. To convert, multiply the value in milligrams per hour by 1e-6.
How do I convert 1 mg/hr to kg/hr?
1 mg/hr = 1e-6 kg/hr. For any value, multiply by 1e-6.
How do I convert kg/hr back to mg/hr?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 kg/hr = 1.00000e+6 mg/hr.
When would I need to convert milligram per hour to kilogram per hour?
Mass flow conversions between mg/hr and kg/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).

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