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Pressure

kPatoinHg

Convert kilopascals (kPa) to inches of mercury (0 °C) (inHg).

Factor1 kPa = 0.2952998 inHg

Converter

kPa

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

Result
29.53inHg

Rendered to 6 significant figures.

Formula

Formula
inHg = kPa × 0.2952998

Multiply any value in kilopascals by 0.2952998 to obtain the value in inches of mercury (0 °C).

Worked example

Convert 100 kPa to inHg.

  1. 01Start with 100 kPa.
  2. 02Multiply by the conversion factor: 100 × 0.2952998 = 29.53 inHg.
Result100 kPa = 29.53 inHg

Conversion table

kPainHg
10.2953
20.5906
51.4765
102.953
205.906
5014.765
10029.53
20059.06
500147.65
1000295.3

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kPa to inHg?
1 kPa equals 0.2952998 inHg. To convert, multiply the value in kilopascals by 0.2952998.
How do I convert 1 kPa to inHg?
1 kPa = 0.2953 inHg. For any value, multiply by 0.2952998.
How do I convert inHg back to kPa?
Divide by the same factor — or equivalently, multiply by 3.386389. So 1 inHg = 3.38639 kPa.
When would I need to convert kilopascal to inch of mercury (0 °C)?
Pressure conversions between kPa and inHg 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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