Tires, weather charts, labs, and blood pressure devices mix Pa, kPa, bar, atm, psi, and mmHg. Convert them here.
Pascals and kilopascals
SI pressure in Pa; kPa is common for readable engineering values.
Tire pressure
Swap bar/kPa with psi for international car manuals.
mmHg
Uses the conventional atm mapping for medical and weather comparisons.
Frequently asked questions
One atm in pascals?
1 atm = 101,325 Pa by definition—convert atm, Pa, and kPa here.
Tire psi to bar?
Enter tire gauge psi and convert to bar or kPa. Typical car tires ~32–36 psi—follow your door sticker.
mmHg vs kPa?
Uses the usual 760 mmHg ≈ 101,325 Pa mapping—handy when a device shows only one unit.
Bar vs kilopascal?
1 bar = 100 kPa exactly—swap bar and kPa on this page.
Can I save my inputs?
Yes. Copy link below the form keeps your current inputs so you can share the scenario or save it for later.