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Pressure converter

Unit converters

Convert pressure values across Pa, kPa, bar, psi and atm units.

Updated

Pressure converter

Convert pressure values across Pa, kPa, bar, psi and atm units.

Input format: Line 1=value, Line 2=unit (bar/kpa/pa/psi/atm)

Output

Quick start

How to use pressure

Enter input and view computed output.

  1. Step 1
    Enter input

    Paste or type your data in the input box.

  2. Step 2
    Compute

    The tool processes input instantly in your browser.

  3. Step 3
    Use output

    Copy output and continue your workflow.

In-depth guide

Pressure converter guide

Convert pressure values across Pa, kPa, bar, psi and atm units. This tool is designed for fast local processing and practical day-to-day use.

Quick start

Paste input, review output instantly, then copy it for your workflow.

Input tips

Use one value per line for structured inputs. Common separators are handled gracefully.

Privacy

Processing runs in your browser tab for the MVP workflow, with no mandatory upload step.

When to use it vs alternatives

Use this converter when you need a quick value across metric, imperial, data, time, or other unit systems. Use domain-specific engineering, lab, or compliance software when tolerances, significant figures, or standards must be formally controlled.

Common pitfalls

  • Confirm the source unit before copying a result, especially when labels are similar across systems.
  • Rounding can matter for materials, shipping, science, and engineering calculations.
  • Check whether your context expects SI, IEC, US customary, imperial, or regional units.

Frequently asked questions

Which pressure units are supported?

Common units like pascal, kilopascal, bar, psi, atmosphere and mmHg, with instant conversion between them.

How many pascals are in 1 bar?

Exactly 100,000 pascals, which is also 100 kilopascals. 1 bar is close to standard atmospheric pressure.

What is the difference between absolute and gauge pressure?

Gauge pressure is measured relative to the surrounding atmosphere, while absolute pressure includes atmospheric pressure. Tyre gauges read gauge pressure.

How do I convert psi to bar?

One psi is about 0.0689 bar, so the tool multiplies accordingly. 1 bar is roughly 14.5 psi.

What is mmHg used for?

Millimetres of mercury is common in medicine, such as blood pressure, and in vacuum measurement.

Is any data uploaded?

No. All conversions run locally in your browser.

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