Tire Pressure Calculator
Get recommended tire pressure for your vehicle type, load level, and current temperature.
How to Use the Tire Pressure Calculator
- Select your vehicle type.
- Select the current load level.
- Enter the current ambient temperature in Celsius.
- Click Calculate to see recommended front and rear tire pressure.
使用场景
- •Adjusting tire pressure before a long trip.
- •Checking inflation for seasonal temperature changes.
- •Optimizing pressure for heavy loads.
- •Maintaining proper pressure for fuel efficiency.
公式
Recommended PSI = base pressure + load adjustment + temperature adjustment (±1 PSI per 10°C from 20°C reference).
常见问题
Why does temperature affect tire pressure?
Tire pressure changes by approximately 1 PSI for every 10°C change in temperature. Cold weather reduces pressure; hot weather increases it.
Should I check pressure when tires are cold or hot?
Always check tire pressure when tires are cold (before driving or after less than 1 mile). Hot tires show higher pressure due to heat expansion.
What PSI is dangerous?
Running 20% or more below recommended pressure is considered significantly underinflated and dangerous. Overinflation above maximum is also unsafe.