Example
14.5038 psi
Pressure Converter
Convert between bar, PSI, kPa, atmospheres, mmHg, and more instantly in your browser. Free online pressure converter.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Value — enter a numeric amount.
- From — enter a choice from the options.
- To — enter a choice from the options.
- Review your results — the key output is highlighted, with supporting figures below.
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Results
Result
| Detail | Value |
|---|---|
| Bar | |
| PSI | |
| kPa |
What is this calculator for?
Convert between common pressure units used in engineering, weather, and automotive.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Value — enter a numeric amount.
- From — enter a choice from the options.
- To — enter a choice from the options.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Value
- a numeric amount · required
- From
- a choice from the options (Bar, PSI (lb/in²), Kilopascal (kPa), Pascal (Pa), Atmospheres (atm), mmHg (torr)) · optional
- To
- a choice from the options (Bar, PSI (lb/in²), Kilopascal (kPa), Pascal (Pa), Atmospheres (atm), mmHg (torr)) · optional
About This Calculator
Pressure units relate through the pascal. 1 bar = 100,000 Pa, 1 atm = 101,325 Pa, 1 psi = 6,894.76 Pa, and 760 mmHg = 1 atm.
This converter normalises to pascals and converts to your target, showing bar, PSI, and kPa alongside. All math runs locally.
Worked Examples
Frequently Asked Questions
What is the relationship between bar and psi?
1 bar is about 14.504 psi. Tire pressures are commonly quoted in one or the other, so this is the conversion you most often need.
Is mmHg the same as torr?
Very nearly — 1 torr is defined as 1/760 atm, which equals 1 mmHg for practical purposes. The tool treats them as equivalent.