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Mass Flow Rate

g/hrtokg/hr

Convert grams per hour (g/hr) to kilograms per hour (kg/hr).

Factor1 g/hr = 0.001 kg/hr

Converter

g/hr

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

Result
1kg/hr

Rendered to 6 significant figures.

Formula

Formula
kg/hr = g/hr × 0.001

Multiply any value in grams per hour by 0.001 to obtain the value in kilograms per hour.

Worked example

Convert 1000 g/hr to kg/hr.

  1. 01Start with 1000 g/hr.
  2. 02Multiply by the conversion factor: 1000 × 0.001 = 1 kg/hr.
Result1000 g/hr = 1 kg/hr

Conversion table

g/hrkg/hr
10.001
20.002
50.005
100.01
200.02
500.05
1000.1
2000.2
5000.5
10001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from g/hr to kg/hr?
1 g/hr equals 0.001 kg/hr. To convert, multiply the value in grams per hour by 0.001.
How do I convert 1 g/hr to kg/hr?
1 g/hr = 0.001 kg/hr. For any value, multiply by 0.001.
How do I convert kg/hr back to g/hr?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kg/hr = 1000 g/hr.
When would I need to convert gram per hour to kilogram per hour?
Mass flow conversions between g/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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