Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Related Conversions
10 inHg to kPa 25 inHg to kPa 30 inHg to kPa 32 inHg to kPa 40 inHg to kPa 50 inHg to kPa 96 inHg to kPa 180 inHg to kPa 240 inHg to kPa 288 inHg to kPa 1,000 inHg to kPa 5,000 inHg to kPa
Reverse Conversions
5 kPa to inHg 10 kPa to inHg 20 kPa to inHg 40 kPa to inHg 60 kPa to inHg 90 kPa to inHg 200 kPa to inHg 240 kPa to inHg 288 kPa to inHg 1,000 kPa to inHg 2,000 kPa to inHg 2,400 kPa to inHg
More Pressure Conversions
1 Torr to Pa 1 atm to kPa 1 atm to psi 2 MPa to psi 5 atm to kPa 10 bar to psi 14.7 psi to atm 20 bar to psi 30 bar to psi 35 psi to bar 101.325 kPa to atm 400 kPa to psi

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Kilopascals to Pounds Per Square Inch Pounds Per Square Inch to Kilopascals Bar to Pounds Per Square Inch Atmospheres to Kilopascals Torr to Pascals Inches Of Mercury to Kilopascals

Common Benchmarks

Pressure cooker 15 psi
Atmospheric pressure 101.325 kPa
Espresso machine 9 bar
Soccer ball 12 psi
Blood pressure systolic 120 mmHg
Mountain air 70 kPa

Formula

kPa = inHg × 3.3863881579

Example

Example: convert 120 inches of mercury to kilopascals.

120 inHg = 406.36657895 kPa

Conversion table

inches of mercury (inHg) kilopascals (kPa)
1 inHg 3.38638816 kPa
2 inHg 6.77277632 kPa
5 inHg 16.93194079 kPa
10 inHg 33.86388158 kPa
20 inHg 67.72776316 kPa
50 inHg 169.31940789 kPa
100 inHg 338.63881579 kPa

Explanation

These are both units.

How to convert inches of mercury to kilopascals

  1. Start with the value in inches of mercury (inHg).
  2. Multiply it by 3.3863881579.
  3. The result is the measurement in kilopascals (kPa).

Example: 120 inHg → 406.36657895 kPa

Frequently Asked Questions

How much is 120 inches of mercury in kilopascals?

120 inches of mercury is about 406.367 kilopascals.

How many kilopascals is 1 inch of mercury?

1 inch of mercury is about 3.386388 kilopascals.

How many inches of mercury is 1 kilopascal?

1 kilopascal is about 0.2953 inches of mercury.

What is the difference between inches of mercury and kilopascals?

Both measure pressure, but they are commonly used in different contexts. Inches of mercury are used in meteorology and aviation (barometric pressure). Kilopascals are used for moderate pressures (meteorology, tires, and technical work).

Where are inches of mercury and kilopascals used?

In practice: Inches of mercury are used in meteorology and aviation (barometric pressure). Kilopascals are used for moderate pressures (meteorology, tires, and technical work).

Why does 1 inch of mercury equal 3.386388 kilopascals?

Because pressure units are defined with a fixed relationship (often relative to the pascal). To convert, multiply by that factor.