Pressure Converter

Convert between Pascal, bar, PSI, atmospheres, torr, and more.

Pascal (Pa)

0.01

Hectopascal (hPa)

1 Pa = 0.01 hPa

All Conversions for 1 Pa

HectopascalhPa0.01
KilopascalkPa0.001
MegapascalMPa0.000001
Barbar0.00001
Millibarmbar0.01
PSI (lb/in²)psi0.0001450377439
Atmosphereatm0.000009869232667
Torr / mmHgTorr0.007500637554
Inches of HginHg0.0002952997144

What is the Free Pressure Converter?

The free Pressure Converter supports 10 units: pascals (Pa), hectopascals (hPa), kilopascals (kPa), megapascals (MPa), bar, millibar (mbar), pounds per square inch (psi), standard atmospheres (atm), Torr, and inches of mercury (inHg). Select source and target units, enter a pressure value, and get an instant conversion — plus the full All Conversions table across all 10 units.

  • Converting psi to bar for tyre pressure checks in metric-standard countries
  • Converting hPa to inHg for weather station or barometer readings
  • Converting atm to kPa for chemistry or gas law calculations
  • Converting MPa to psi for hydraulic engineering specifications

How to Use the Free Pressure Converter

  1. 1 Pick the source pressure unit (e.g. psi) from the From dropdown.
  2. 2 Type the pressure value into the input field.
  3. 3 Select the target unit (e.g. bar) from the To dropdown.
  4. 4 See the converted value immediately.
  5. 5 Use ⇄ Swap to reverse direction.
  6. 6 Review all units in the All Conversions table.

Key Features

  • 🌡️
    10 pressure units
    Covers scientific (Pa, kPa), meteorological (hPa, inHg), and engineering (bar, psi, atm) units.
  • 🌤️
    Weather and aviation units
    Includes hPa for weather data and inHg for altimeters and barometers.
  • Live conversion
    Updates on every keystroke with no button press needed.
  • 📊
    All Conversions table
    See all 10 pressure units simultaneously.
  • 🔒
    Free, works offline
    Entirely browser-based — no data sent to any server.

Example Usage

Example Input
From: psi · Value: 14.696 · To: atm
Example Output
14.696 psi = 1 atm

Frequently Asked Questions about the Free Pressure Converter

What is the free Pressure Converter?
Convert between Pascal, bar, PSI, atmospheres, torr, and more.
Is the Pressure Converter free to use?
Yes, the Pressure Converter is completely free. No account, subscription, or signup is required — ever.
Does my data get uploaded anywhere?
No. The Pressure Converter runs entirely in your browser. Your data is never sent to any server.
Does it work offline?
Yes. Once the page has loaded, the tool works without an internet connection.
Which browsers are supported?
All modern browsers — Chrome, Firefox, Safari, and Edge. No plugins or extensions required.
What is standard atmospheric pressure in different units?
1 atm = 101,325 Pa = 1,013.25 hPa = 14.696 psi = 1.01325 bar = 760 Torr = 29.92 inHg. Enter 1 in the atm field to see all conversions at once.

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