How do I convert PSI to bar?

1 bar = 14.5038 PSI. To convert PSI to bar, divide by 14.504. Tire pressure: 32 PSI = 2.21 bar. European cars use bar, American cars use PSI.

What is atmospheric pressure?

Standard atmospheric pressure = 101,325 pascals = 1 atm = 14.696 PSI = 1.01325 bar. It decreases with altitude — 30 cm Hg lower per 3,000m ascent.

What is normal blood pressure in mmHg?

Normal blood pressure is 120/80 mmHg (systolic/diastolic). mmHg (millimetres of mercury) is the medical standard for blood pressure worldwide.

What tire pressure should I use?

Most cars: 30-35 PSI (2.1-2.4 bar) front, 32-36 PSI rear. Check your car door sticker for manufacturer recommendation. Correct pressure improves fuel economy by 0.5-3%.

What is Pascal used for?

Pascal (Pa) is the SI unit of pressure. Used in scientific contexts, weather forecasting (hectopascals for atmospheric pressure), and material strength calculations.

🔴 Pressure Converter

Convert Pascal, PSI, Bar, ATM & mmHg Instantly

Enter Value

From

Result

—

📊 Common Pressure Reference

Pressure	PSI	kPa	bar	atm
1 atm	14.696	101.325	1.01325	1
1 bar	14.504	100	1	0.9869
1 PSI	1	6.895	0.06895	0.068
Car tire (typical)	32–35 PSI	220–241 kPa	2.2–2.4 bar	—
Blood pressure (normal)	~1.6–2.3 PSI	—	—	~0.12–0.16 atm

Frequently Asked Questions

Q: What is 1 atmosphere in PSI?

1 atm = 14.696 PSI = 101,325 Pa = 1.01325 bar. This is the standard atmospheric pressure at sea level. Gauge pressure (tire pressure shown on gauge) is above atmospheric.

Q: What PSI should my car tires be?

Most passenger cars recommend 32–35 PSI (220–241 kPa). Check the sticker inside your driver door or fuel cap — not the max PSI on the tire sidewall. Check when tires are cold for accurate reading.

📊 Common Pressure Reference

Frequently Asked Questions

🧮 Related Calculators

🌡️ Temperature Converter

% Percentage Calculator

🏦 Loan EMI Calculator