Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Related Conversions
5 inHg to kPa 30 inHg to kPa 35 inHg to kPa 50 inHg to kPa 65 inHg to kPa 70 inHg to kPa 80 inHg to kPa 100 inHg to kPa 180 inHg to kPa 480 inHg to kPa 700 inHg to kPa 1,000 inHg to kPa
Reverse Conversions
5 kPa to inHg 25 kPa to inHg 60 kPa to inHg 70 kPa to inHg 150 kPa to inHg 300 kPa to inHg 360 kPa to inHg 440 kPa to inHg 640 kPa to inHg 700 kPa to inHg 1,000 kPa to inHg 8,000 kPa to inHg
More Pressure Conversions
1 MPa to psi 1 Torr to Pa 1 atm to kPa 1 atm to psi 1 bar to atm 5 atm to kPa 10 bar to psi 14.7 psi to atm 20 bar to psi 35 psi to bar 101.325 kPa to atm 105 kPa to psi

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Popular Conversions

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

Scuba tank 3000 psi
Car tire 32 psi
Atmospheric pressure 101.325 kPa
Soccer ball 12 psi
Bicycle tire 80 psi
Blood pressure systolic 120 mmHg

Formula

kPa = inHg × 3.3863881579

Example

Example: convert 400 inches of mercury to kilopascals.

400 inHg = 1354.55526316 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: 400 inHg → 1354.55526316 kPa

Frequently Asked Questions

How much is 400 inches of mercury in kilopascals?

400 inches of mercury is about 1354.56 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.