---
title: "Pounds per square inch to Inches of mercury converter"
description: "1 pound per square inch = 2.03602 inches of mercury. Conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/psi-to-inches-of-mercury/
site: "At One Place"
---

# Pounds per square inch to inches of mercury

**1 pound per square inch in inches of mercury: 1 psi = 2.03602 inHg**

inHg = psi × 2.036020461

To convert pounds per square inch to inches of mercury, multiply by 2.036020461. The table below gives the values people look up most often, and the converter works for any number.

## Pounds per square inch to inches of mercury table

*Common pound per square inch values converted to inches of mercury.*

| Pounds per square inch | Inches of mercury |
| --- | --- |
| 1 psi | 2.03602 |
| 2 psi | 4.072041 |
| 3 psi | 6.108061 |
| 4 psi | 8.144082 |
| 5 psi | 10.1801 |
| 10 psi | 20.3602 |
| 15 psi | 30.54031 |
| 20 psi | 40.72041 |
| 25 psi | 50.90051 |
| 30 psi | 61.08061 |
| 40 psi | 81.44082 |
| 50 psi | 101.801 |
| 75 psi | 152.7015 |
| 100 psi | 203.602 |
| 250 psi | 509.0051 |
| 500 psi | 1,018.0102 |
| 1,000 psi | 2,036.0205 |

## How the conversion works

The relationship is inHg = psi × 2.036020461. Both units measure pressure, so the conversion is a fixed factor that never changes.

## Common questions

### How many inches of mercury are in one pound per square inch?

One pound per square inch equals 2.03602 inches of mercury. inHg = psi × 2.036020461.

### How do you convert pounds per square inch to inches of mercury?

Use inHg = psi × 2.036020461. So 10 psi is 20.3602 inHg.

### How many pounds per square inch are in one inch of mercury?

One inch of mercury equals 0.49115 pounds per square inch, which is the reverse of the conversion above.

## Related pages

- [Inches of mercury to Pounds per square inch](https://atoneplace.net/convert/inches-of-mercury-to-psi/)
- [Pounds per square inch to Pascals](https://atoneplace.net/convert/psi-to-pascals/)
- [Pounds per square inch to Kilopascals](https://atoneplace.net/convert/psi-to-kilopascals/)
- [Pounds per square inch to Bars](https://atoneplace.net/convert/psi-to-bar/)
- [Pounds per square inch to Standard atmospheres](https://atoneplace.net/convert/psi-to-atmospheres/)
- [Pounds per square inch to Torrs](https://atoneplace.net/convert/psi-to-torr/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)