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Pressure

inH₂Otokgf/m²

Convert inches of water column (4 °C) (inH₂O) to kilograms-force per square metre (kgf/m²).

Factor1 inH₂O = 25.4 kgf/m²

Converter

inH₂O

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

Result
25.4kgf/m²

Rendered to 6 significant figures.

Formula

Formula
kgf/m² = inH₂O × 25.4

Multiply any value in inches of water column (4 °C) by 25.4 to obtain the value in kilograms-force per square metre.

Worked example

Convert 1 inH₂O to kgf/m².

  1. 01Start with 1 inH₂O.
  2. 02Multiply by the conversion factor: 1 × 25.4 = 25.4 kgf/m².
Result1 inH₂O = 25.4 kgf/m²

Conversion table

inH₂Okgf/m²
125.4
250.8
5127
10254
20508
501270
1002540
2005080
50012700
100025400

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from inH₂O to kgf/m²?
1 inH₂O equals 25.4 kgf/m². To convert, multiply the value in inches of water column (4 °C) by 25.4.
How do I convert 1 inH₂O to kgf/m²?
1 inH₂O = 25.4 kgf/m². For any value, multiply by 25.4.
How do I convert kgf/m² back to inH₂O?
Divide by the same factor — or equivalently, multiply by 0.03937008. So 1 kgf/m² = 0.0393701 inH₂O.
When would I need to convert inch of water column (4 °C) to kilogram-force per square metre?
Pressure conversions between inH₂O and kgf/m² 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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