Proper tire pressure is critical for safety, fuel economy, and tire longevity. Use this calculator to find the right PSI for your RV, truck, or trailer.

Step 1: Select Your Vehicle Type

Step 2: Load Condition

How heavily are you loading your vehicle?

Step 3: Temperature Adjustment

Temperature affects tire pressure. Adjust for your typical conditions.

Recommended Pressures by Vehicle Type

Vehicle Type Typical Pressure Notes
Travel Trailer 65-80 PSI Follow manufacturer specs
Fifth Wheel 80-110 PSI Axle ratings matter
Class A Motorhome 80-110 PSI Steer vs drive tires differ
Class C Motorhome 65-80 PSI Based on truck chassis
Semi Truck 100-120 PSI Steer: 110, Drive: 100
Utility Trailer 50-65 PSI Check axle capacity