Pressure Converter — PSI, Bar, kPa, ATM & mmHg
Convert PSI ⇄ bar ⇄ kPa ⇄ atm ⇄ mmHg instantly — tyres, diving, weather and lab work.
Quick answer: Free pressure converter: PSI to bar, kPa, atmospheres, mmHg/Torr, mbar — exact factors, instant, offline.
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–result
How to use
- Enter the pressure value.
- Pick the units.
- Live result — round as your gauge does.
About this tool
Tyre gauges say PSI, European manuals say bar, weather maps say hPa, blood pressure says mmHg. One tool, exact factors (1 bar = 100,000 Pa; 1 atm = 101,325 Pa), live conversion.
FAQ
What PSI is 2.2 bar?
2.2 × 14.5038 = 31.9 PSI — type it and see, car-tyre accurate.
mmHg vs Torr?
Practically identical (0.017 ppm apart) — both included.
Weather hPa?
hPa = mbar exactly; 1013 hPa = standard sea-level pressure.
Diving?
1 atm per 10 m of seawater is the dive-school rule; convert gauge readings exactly here.
Offline?
Yes.
Which for bike tyres?
Road bikes ~5–8 bar (70–115 PSI) — convert your gauge's scale here.
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