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Pressure

Convert pascals to inches of mercury

1 Pa=0.0002953inHg

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

0.0002953

Conversion formula

Forward
inches of mercury = pascals × 0.0002953
Reverse
pascals = inches of mercury × 3,386.39

Example: 10 Pa × 0.0002953 = 0.002953 inHg.

About both units

From

Pascal

Pa

The pascal is the SI unit of pressure — one newton per square metre. Named after Blaise Pascal. 1 Pa is a very small pressure; atmospheric pressure is about 101,325 Pa. Pressure readings in engineering are usually in kPa or MPa.

Real-world: Atmospheric pressure: 101,325 Pa. Conversation level: 0.001 Pa sound pressure. Truck tyre: 900,000 Pa.
Read full pascal 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 →

Pascal to Inch of Mercury conversion table

Common pascals to inches of mercury values for quick reference.

Pascal (Pa)Inch of Mercury (inHg)
1 Pa0.0002953 inHg
5 Pa0.001476 inHg
10 Pa0.002953 inHg
25 Pa0.007382 inHg
50 Pa0.01476 inHg
100 Pa0.02953 inHg
200 Pa0.05906 inHg
500 Pa0.1476 inHg
1,000 Pa0.2953 inHg
5,000 Pa1.4765 inHg

Tips & common mistakes

Quick tips

  • 1 Pa = 1 N/m².
  • 1 kPa = 1000 Pa; 1 MPa = 1,000,000 Pa; 1 bar = 100,000 Pa.
  • Use kPa, MPa or bar for practical engineering work.

Avoid these

  • Confusing Pa with psi — 1 psi = 6895 Pa.
  • Using Pa for tyre pressures — 220,000 Pa unwieldy; use 2.2 bar.
  • Mixing Pa absolute and Pa gauge without specification.

Frequently asked questions

How many inches of mercury in a pascal?
One pascal equals 0.0002953 inches of mercury.
How do I convert pascals to inches of mercury?
Multiply the pascal value by 0.0002953 to get the equivalent in inches of mercury.
What is 100 pascals in inches of mercury?
100 pascals equals 0.02953 inches of mercury.
Is a pascal bigger than a inch of mercury?
No. 1 pascal equals 0.0002953 inches of mercury, so one pascal is smaller.
How to convert pascals to inches of mercury without a calculator?
Multiply by 0 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

More from Pascal

Pa → kPa
1 = 0.001 kPa
Pa → MPa
1 = 1.0000e-6 MPa
Pa → bar
1 = 1.0000e-5 bar
Pa → mbar
1 = 0.01 mbar
Pa → psi
1 = 0.000145 psi
Pa → atm
1 = 9.8692e-6 atm
Pa → mmHg
1 = 0.007501 mmHg
Pa → Torr
1 = 0.007501 Torr

More to Inch of Mercury

kPa → inHg
1 = 0.2953 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