Pressure Converter

Convert between PSI, Bar, kPa, atmospheres, and mmHg. Perfect for tires, engineering, and weather.

2.21

🚗 Common Tire Pressures

Vehicle TypePSIBar
Passenger car32-35 PSI2.2-2.4 bar
SUV/Truck35-40 PSI2.4-2.8 bar
Bicycle (road)80-130 PSI5.5-9.0 bar
Motorcycle28-40 PSI1.9-2.8 bar

📚 About Pressure Conversion

Pressure measures force per unit area. PSI (pounds per square inch) is common in the US, while Bar and kPa are used internationally. 1 Bar ≈ 14.5 PSI and equals approximately atmospheric pressure at sea level.

For tire pressure, most passenger cars require 32-35 PSI (2.2-2.4 bar). Check your car's door jamb for the manufacturer's recommended pressure. Proper tire pressure improves fuel efficiency, handling, and tire life.