RV Tire Pressure Chart
Free RV tire pressure lookup - find correct PSI for ST, LT and passenger tires by load range. Inflation tables for trailer, motorhome and camper tires.
For educational purposes only. Always verify specifications with manufacturers and consult qualified RV technicians for safety-critical decisions. See our Terms of Service.
Your Tire Info
Found on tire sidewall after size (e.g., "ST225/75R15 E")
lbs
Per axle from a truck scale. Helps determine optimal PSI.
Pressure Recommendations
Max PSI (Cold)
-- psi
Max Load Per Tire
-- lbs
Recommended PSI
-- psi
Load/Inflation Table
| PSI | Load Capacity (lbs) |
|---|
Tire Pressure Tips
Always Check Cold
Tire pressure should be checked when tires are cold (not driven for 3+ hours). Hot tires read 10-15% higher.
Don't Underinflate
Underinflated tires cause excessive heat buildup - the #1 cause of tire blowouts. When in doubt, inflate to max sidewall pressure.
Weigh Your RV
Get individual axle weights at a truck stop CAT Scale (~$15). This lets you set optimal pressure rather than guessing.