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Pressure

Convert kilopascals to inches of mercury

1 kPa=0.2953inHg

Use the converter below to change any kilopascals value into inches of mercury instantly — with formula, conversion table, and real-world examples.

0.2953

Conversion formula

Forward
inches of mercury = kilopascals × 0.2953
Reverse
kilopascals = inches of mercury × 3.38639

Example: 10 kPa × 0.2953 = 2.953 inHg.

About both units

From

Kilopascal

kPa

The kilopascal equals 1000 pascals. Used for tyre pressures in many metric countries, engineering pressures and weather reports. 100 kPa ≈ 1 bar ≈ atmospheric pressure.

Real-world: Tyre pressure: 220–280 kPa. Atmospheric: 101 kPa. HVAC duct static: 0.1–0.3 kPa.
Read full kilopascal reference →
To

Inch of Mercury

inHg

The inch of mercury equals about 3386 Pa. Used in US barometers, US aviation altimeter settings and some engineering. Standard sea-level pressure: 29.92 inHg.

Real-world: Sea-level standard: 29.92 inHg. Mountain pass at 3000 m: ~21 inHg. US aviation QNH given in inHg.
Read full inch of mercury reference →

Kilopascal to Inch of Mercury conversion table

Common kilopascals to inches of mercury values for quick reference.

Kilopascal (kPa)Inch of Mercury (inHg)
1 kPa0.2953 inHg
5 kPa1.4765 inHg
10 kPa2.953 inHg
25 kPa7.3825 inHg
50 kPa14.765 inHg
100 kPa29.53 inHg
200 kPa59.06 inHg
500 kPa147.65 inHg
1,000 kPa295.3 inHg
5,000 kPa1,476.5 inHg

Tips & common mistakes

Quick tips

  • 1 kPa = 1000 Pa = 0.01 bar = 0.145 psi.
  • 100 kPa ≈ 1 bar.
  • Commonly used on tyre manuals in Commonwealth countries.

Avoid these

  • Confusing kPa with kW or kJ.
  • Using kPa when bar would be simpler.
  • Mixing absolute and gauge in kPa without specification.

Frequently asked questions

How many inches of mercury in a kilopascal?
One kilopascal equals 0.2953 inches of mercury.
How do I convert kilopascals to inches of mercury?
Multiply the kilopascal value by 0.2953 to get the equivalent in inches of mercury.
What is 100 kilopascals in inches of mercury?
100 kilopascals equals 29.53 inches of mercury.
Is a kilopascal bigger than a inch of mercury?
No. 1 kilopascal equals 0.2953 inches of mercury, so one kilopascal is smaller.
How to convert kilopascals to inches of mercury without a calculator?
Multiply by 0.3 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

More from Kilopascal

kPa → Pa
1 = 1,000 Pa
kPa → MPa
1 = 0.001 MPa
kPa → bar
1 = 0.01 bar
kPa → mbar
1 = 10 mbar
kPa → psi
1 = 0.145 psi
kPa → atm
1 = 0.009869 atm
kPa → mmHg
1 = 7.50062 mmHg
kPa → Torr
1 = 7.50062 Torr

More to Inch of Mercury

Pa → inHg
1 = 0.0002953 inHg
MPa → inHg
1 = 295.3 inHg
bar → inHg
1 = 29.53 inHg
mbar → inHg
1 = 0.02953 inHg
psi → inHg
1 = 2.03602 inHg
atm → inHg
1 = 29.9213 inHg
mmHg → inHg
1 = 0.03937 inHg
Torr → inHg
1 = 0.03937 inHg

Conversions in other categories

WeightKilogram → PoundLengthKilometer → MileTemperatureCelsius → FahrenheitVolumeLiter → US GallonAreaSquare Meter → Square FootSpeedKilometer per Hour → Mile per HourEnergyKilojoule → KilocaloriePowerKilowatt → Mechanical Horsepower