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Pressure Conversion

From

Amount to Convert

Result

2.03602066inHg

1 PSI = 2.03602066 Inches of Mercury

infoAbout Pressure Tool

Pressure unit conversions for engineering, weather, and medical applications. Pascal, Bar, PSI, ATM and more.

Quick References

1 Atmosphere to PSI14.69594301
1 Bar to PSI14.50376808
1 mmHg to Kilopascal0.133322

table_chartCommon Conversions

Pascal6894.76 Pa

Kilopascal6.89476 kPa

Megapascal6.8948e-3 MPa

Bar0.0689476 bar

Millibar68.9476 mbar

Atmosphere0.06804599 atm

PSI to Inches of Mercury Conversion Table

PSI (psi)	Inches of Mercury (inHg)
1 psi	2.03602066 inHg
2 psi	4.07204132 inHg
5 psi	10.1801033 inHg
10 psi	20.36020659 inHg
25 psi	50.90051648 inHg
50 psi	101.80103296 inHg
100 psi	203.60206592 inHg
250 psi	509.00516479 inHg
500 psi	1018.01032958 inHg
1000 psi	2036.02065917 inHg

How to Convert PSI to Inches of Mercury

Formula

Inches of Mercury = PSI × 2.03602066

Worked Example

Example: 5 PSI = 5 × 2.03602066 = 10.1801033 Inches of Mercury

To convert PSI to Inches of Mercury, multiply the PSI value by 2.03602066. This factor is derived from the ratio between the two units.

About These Units

psi

PSI

PSI (pounds per square inch) is an imperial unit of pressure measuring force in pounds applied to an area of one square inch. It is the standard pressure unit in the United States for tire pressure, hydraulic systems, and compressed gas cylinders.

History

PSI has been used in English-speaking countries for centuries as the standard engineering unit of pressure. Standard atmospheric pressure is 14.696 psi. Typical car tires are inflated to 30-35 psi, while truck tires may require 80-100 psi.

inHg

Inches of Mercury

Inches of mercury is a unit of pressure based on the height of a mercury column measured in inches. It is used in the United States for barometric pressure readings in weather reports and in aviation altimeter settings.

History

Inches of mercury is the traditional unit for barometric pressure in US weather forecasts. Standard atmospheric pressure is 29.92 inHg. Aviation uses inHg for altimeter settings in the US, while most other countries use hectopascals.

Frequently Asked Questions

Related Pressure Conversions

arrow_forwardPSI to Pascal arrow_forwardPSI to Kilopascal arrow_forwardPSI to Megapascal arrow_forwardPSI to Bar arrow_forwardPSI to Millibar arrow_forwardPSI to Atmosphere arrow_forwardPascal to Inches of Mercury arrow_forwardKilopascal to Inches of Mercury arrow_forwardMegapascal to Inches of Mercury arrow_forwardBar to Inches of Mercury arrow_forwardMillibar to Inches of Mercury arrow_forwardAtmosphere to Inches of Mercury

Why use NexaConvert for Units?

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Scientific Accuracy

Calculated using the latest NIST standards for physical constants and unit ratios.

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Instant Execution

No reload required. Get your results in real-time as you type or change units.

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Cross-Device

A responsive precision tool that fits in your pocket or dominates your desktop.

How these conversions work

Each category converts first through a base unit, then into the destination unit. That keeps the math consistent across metric and imperial systems and makes it easier to explain how results are generated.

When to double-check

Use these tools for planning, study, and everyday reference. For regulated, medical, engineering, or procurement work, confirm requirements against the official standard or specification you are working from.

PSI (psi)

Inches of Mercury (inHg)

1 psi

2.03602066 inHg

2 psi

4.07204132 inHg

5 psi

10.1801033 inHg

10 psi

20.36020659 inHg

25 psi

50.90051648 inHg

50 psi

101.80103296 inHg

100 psi

203.60206592 inHg

250 psi

509.00516479 inHg

500 psi

1018.01032958 inHg

1000 psi

2036.02065917 inHg

About These Units

psi

PSI

History

inHg

Inches of Mercury

History

Why use NexaConvert for Units?

verified

Scientific Accuracy

Calculated using the latest NIST standards for physical constants and unit ratios.

bolt

Instant Execution

No reload required. Get your results in real-time as you type or change units.

devices

Cross-Device

A responsive precision tool that fits in your pocket or dominates your desktop.