# Pressure Converter

> Convert between pascal, bar, psi, atmosphere, mmHg, torr, and other pressure units instantly.

URL: https://uttir.com/pressure-converter
Categories: converters, math-tools
Privacy: Conversions run locally in your browser. No values are sent anywhere.

## About

Pressure is force per unit area. There are many units in common use: pascals (SI), bar (meteorology and diving), psi (US engineering), atmospheres (chemistry and physics), and mmHg or torr (medicine and vacuum science).

This converter uses the pascal as the base and supports conversion between all of them. The math is done in your browser.

## How to use

1. **Enter a value** — Type the pressure in any of the supported units. The default is 1 atm.
2. **Pick the from / to units** — The "from" dropdown lists the source unit; the "to" dropdown lists the target. The result updates as you type.
3. **Use the swap button** — Click the swap arrow to flip the from and to units. Useful for back-and-forth conversions.

## Examples

### Tire pressure: 32 psi to bar

A typical car tire at 32 psi (US spec) is about 2.21 bar (European spec).

Input:

```
32 psi
```

Output:

```
≈ 2.206 bar
```

## FAQ

### What unit is used for blood pressure?

Blood pressure is typically reported in mmHg (millimeters of mercury). 120/80 mmHg is the standard "normal" reading.

### What is the difference between bar and atm?

1 bar = 100,000 Pa. 1 atm = 101,325 Pa. They differ by about 1.3%; for most practical work, the difference is negligible.

### Is this the same as the unit-converter on the home page?

No — this is a focused pressure-only converter with a wider unit list and quick-reference table. The general unit converter covers fewer pressure units.

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For the full HTML page with the live tool, visit https://uttir.com/pressure-converter.
This file is the markdown rendering at https://uttir.com/pressure-converter.md. See https://uttir.com/llms.txt for a site-wide summary.