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Pressure

mH₂Otokgf/mm²

Convert metres of water column (mH₂O) to kilograms-force per square millimetre (kgf/mm²).

Factor1 mH₂O = 0.001 kgf/mm²

Converter

mH₂O

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

Result
1kgf/mm²

Rendered to 6 significant figures.

Formula

Formula
kgf/mm² = mH₂O × 0.001

Multiply any value in metres of water column by 0.001 to obtain the value in kilograms-force per square millimetre.

Worked example

Convert 1000 mH₂O to kgf/mm².

  1. 01Start with 1000 mH₂O.
  2. 02Multiply by the conversion factor: 1000 × 0.001 = 1 kgf/mm².
Result1000 mH₂O = 1 kgf/mm²

Conversion table

mH₂Okgf/mm²
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 mH₂O to kgf/mm²?
1 mH₂O equals 0.001 kgf/mm². To convert, multiply the value in metres of water column by 0.001.
How do I convert 1 mH₂O to kgf/mm²?
1 mH₂O = 0.001 kgf/mm². For any value, multiply by 0.001.
How do I convert kgf/mm² back to mH₂O?
Divide by the same factor — or equivalently, multiply by 1000. So 1 kgf/mm² = 1000 mH₂O.
When would I need to convert metre of water column to kilogram-force per square millimetre?
Pressure conversions between mH₂O and kgf/mm² are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
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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