Unit Converter
Convert between 100+ units across 11 categories — length, weight, temperature, area, volume, speed, time, digital storage, energy, pressure, and angle. Instant results with formula explanations and full conversion tables.
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Pressure Converter
Convert pressure between pascals, kilopascals, megapascals, bar, millibar, psi, atmospheres, and mmHg. Instant results with conversion factor, base-unit explanation, and a full reference table.
Pressure Converter
Use this free pressure converter to switch between kilopascals, psi, bar, atmospheres, millibars, megapascals, pascals, and mmHg. It is useful for tyre inflation, engineering systems, weather readings, compressors, gas settings, and clinical reference comparisons. The tool also connects naturally to the Unit Converter, Speed Converter, and the wider Conversion Tools category.
Convert pressure measurements instantly
Pick your input and output units, enter a pressure value, and get instant conversions with a full reference table.
Useful for
Tyres, gauges, hydraulics, weather, and medical values
Helpful when you need reliable pressure conversions across metric, engineering, and medical units.
Common conversions
31.9083023
This tool converts through pascals as a neutral reference unit to keep the output consistent across all supported pressure units.
Conversion result
220 kPa = 31.9083023 psi
1 kPa = 0.1450377377 psi
Converted value
31.9083023 psi
Base pascals
220,000 Pa
From unit
Kilopascals
To unit
Pounds per Square Inch
How this pressure conversion works
Step 1
Start with 220 kPa
Step 2
220,000 Pa
Step 3
31.9083023 psi
The calculator first transforms your input into pascals, then divides by the selected output unit factor. This avoids inconsistent pair-by-pair formulas and keeps automotive, industrial, weather, and medical pressure conversions aligned.
Example pressure conversions
Use the presets below for common pressure scenarios, from tyre inflation and workshop gauges to medical and atmospheric comparisons.
Quick examples
All supported pressure units
Compare your result against every supported unit. Filter by measurement family to focus on metric, engineering, or medical outputs.
| Unit | Group | Equivalent value |
|---|---|---|
Pascals Pa | Metric and weather | 220,000 Pa |
Kilopascals kPa | Metric and weather | 220 kPa |
Megapascals MPa | Engineering and industrial | 0.22 MPa |
Bar bar | Engineering and industrial | 2.2 bar |
Millibar mbar | Metric and weather | 2,200 mbar |
Pounds per Square Inch psi | Engineering and industrial | 31.9083023 psi |
Atmospheres atm | Engineering and industrial | 2.171231187 atm |
Millimetres of Mercury mmHg | Medical and clinical | 1,650.135467 mmHg |
How to use this pressure converter
Enter the numeric pressure you want to convert, choose the original unit, and then pick the destination unit. The result updates instantly, so you can compare gauge readings, atmospheric pressure values, tyre recommendations, or clinical references without manual formulas.
Pressure units vary significantly across industries, which is why a dedicated tool is faster than looking up one-off factors. This page works well alongside the Unit Converter and the broader Conversion Tools category when you need a focused pressure workflow.
Automotive work often uses psi and kPa, engineering commonly uses bar or MPa, weather references often use mbar or kPa, and medicine commonly uses mmHg. This page keeps those conversions in one fast reference view.
Pressure Converter FAQ
A pressure converter changes a pressure reading from one unit into another while preserving the same physical force per area. It is useful for tyre inflation, weather data, engineering systems, hydraulic equipment, gas storage, and medical reference values.
Explore This Tool in Context
Pressure Converter is part of the Conversion Tools collection. If you want a broader view of similar workflows, open the Conversion Tools category page or browse all QuickTools categories.
Common next steps after this tool include Unit Converter, Length Converter and Area Converter.
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