Pressure Converter

Convert between 20+ pressure units instantly. From Pascal to PSI, Bar to ATM, mmHg to Torr. Includes scientific, industrial, weather and medical pressure units.

🌡️ Pressure Converter

Current Pressure

1 atm = 101,325 Pa = 1.01325 bar = 14.696 psi = 760 mmHg = 760 Torr. Standard atmospheric pressure at sea level.

Pressure ValuePa

Converted Pressurebar

Conversion Factor

1 Pa = 0.00001 bar

📊 Result

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Enter a pressure value and select units to see conversion with all-unit breakdown, real-world pressure comparisons and applications.

📋 Pressure Conversion Table

Icon	Unit	Symbol	Value	Category

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📊 Common Pressure References

FAQs

What is atmospheric pressure?▼

Standard atmospheric pressure at sea level is 101,325 Pa (1 atm). This equals 1.01325 bar, 14.696 psi, 760 mmHg, or 29.92 inHg. It decreases with altitude - at 5,500m it is roughly half.

What is a Pascal?▼

Pascal (Pa) is the SI unit of pressure. 1 Pa = 1 Newton per square meter. Named after Blaise Pascal. Common multiples: kPa (1000 Pa), MPa (1,000,000 Pa), GPa (1 billion Pa).

What is PSI?▼

PSI = Pounds per Square Inch. Common in US for tire pressure, hydraulic systems. 1 psi = 6,894.76 Pa. Car tires typically run 30-35 psi. Bicycle tires can be 80-130 psi.

What is the difference between bar and atm?▼

1 bar = 100,000 Pa. 1 atm = 101,325 Pa. So 1 atm is about 1.3% more than 1 bar. Bar is used in meteorology and engineering. Atm is used in chemistry and diving.

What is mmHg and Torr?▼

mmHg (millimeters of mercury) is used in blood pressure measurement. 1 mmHg = 133.322 Pa. Torr is nearly identical (1 Torr = 133.322 Pa). Normal blood pressure is 120/80 mmHg.

How is tire pressure measured?▼

Tire pressure is measured in PSI (US), kPa (metric countries), or bar (Europe). Typical car tire: 30-35 psi = 207-241 kPa = 2.07-2.41 bar. Always check when tires are cold.

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