Tire Pressure Chart by Size
Find the optimal load and inflation pressure curve for your specific tire size to maximize tread life and safety.
Quick Answer
For a standard passenger tire size 225/65R17 with a load index of 102, inflating the tire to 30 PSI yields a load capacity of 1,709 lbs per tire. Inflating it to the industry standard 35 PSI maximizes its standard load capacity at 1,874 lbs per tire.
Check your vehicle door jamb sticker for the exact recommended pressure for your specific vehicle.
Standard Load/Inflation Table — Example: 225/65R17 102 SL
| Inflation Pressure (PSI) | Max Load (lbs) | Max Load (kg) |
|---|---|---|
| 26 PSI | 1,543 lbs | 700 kg |
| 29 PSI | 1,653 lbs | 750 kg |
| 32 PSI | 1,764 lbs | 800 kg |
| 35 PSI | 1,874 lbs | 850 kg |
| 38 PSI | 1,874 lbs | 850 kg (Max Load Reached) |
| 44 PSI | 1,874 lbs | 850 kg (Max Inflation Limit) |
How the Chart Is Generated
N/A — Based on standardized Tire and Rim Association (TRA) load/inflation tables
- Standard Load (SL) = P-Metric tires reach maximum load capacity at 35 PSI
- Extra Load (XL) = Reinforced tires reach maximum capacity at 41 PSI
- LT tires use a separate TRA table with higher pressures (50–80 PSI for Load Range E)
- Example: 225/65R17 at 35 PSI achieves its full load index 102 rating of 1,874 lbs