Pressure Converter

Convert between Pa, kPa, MPa, bar, psi, atm, mmHg, inHg, and torr.

Converter Science & Engineering Updated Apr 19, 2026
How to Use
  1. Enter a value in any row — the rest convert.
Pressure
Result
1.000 atm
≈ Sea-level atmospheric pressure
Vacuum 1 kPa 1 atm 1 MPa 0.1 GPa
1 atm
101 325 Pa · 1.013 bar · 14.70 psi · 760 mmHg
Sea level
≈ 1 atm
Cruising (35k ft)
≈ 0.24 atm
Everest summit
≈ 0.33 atm
Car tyre
30 – 35 psi
Deep vacuum
< 10⁻⁶ Pa

Show Work

Enter values to see the step-by-step calculation.

Conversions

Pa → kPa
÷ 1 000
Pa → bar
÷ 100 000
Pa → psi
× 1.45 × 10⁻⁴
Pa → atm
÷ 101 325
Pa → mmHg
÷ 133.322

About the Pressure Converter

Working on science and engineering work? The Pressure Converter is a free browser tool that gives you the answer in seconds. Convert between Pa, kPa, MPa, bar, psi, atm, mmHg, inHg, and torr.

How it works

Enter a number and choose your units — the converted value shows instantly. Everything runs locally, so nothing you type leaves your device. Double-check the direction of the conversion and you are set.

Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.

Frequently Asked Questions

How do I use the Pressure Converter?

Simply type or paste your value and read the result, which refreshes the instant you change something. There is nothing to submit and nothing to wait for.

Do I need to install or sign up for anything?

Not at all — it runs in the browser with nothing to install and no account. After it loads once, it even works without an internet connection.

Is my information private?

Yes. Everything happens in your browser. Nothing you type is sent to a server or saved anywhere.

Common Use Cases

Get an answer fast

Type what you have and get the answer in seconds — on a phone, tablet, or computer.

Try different numbers

Change one thing and watch the answer change. It is an easy way to compare your choices.

Nothing to set up

Open the page and start. There is nothing to install, and no account to make.

No data leaves your browser

The tool runs locally, so whatever you enter stays with you and only you.

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