Tire replacement, tread life, and sizing calculators. Browse our free tires tools below — all calculators are instant, accurate, and require no sign-up.
Tire Load Index Calculator — Look up tire load index numbers to find the maximum weight capacity per tire and total vehicle load. Verify your tires can handle your vehicle's weight.
Tire Pressure Cold vs Hot Calculator — Convert between cold and hot tire pressure readings. Estimate how temperature changes affect PSI and find the correct cold inflation pressure.
Tire Replacement Cost Calculator — Calculate total tire replacement cost including tire price, mounting, balancing, disposal fees, and alignment. Compare 2 vs 4 tire options.
Tire Rotation Schedule Calculator — Calculate your next tire rotation date and mileage based on driving habits. Plan rotations to maximize tread life and tire longevity.
Tire Size Comparison Calculator — Compare two tire sizes side by side. See diameter, width, sidewall height, circumference, and speedometer difference for any tire swap.
Tire Speed Rating Calculator — Look up any tire speed rating letter to find the maximum safe speed. Understand speed ratings from L to Y and choose the right rating for your vehicle.
Tire Tread Life Calculator — Estimate remaining tire life based on current tread depth, minimum safe depth, and rated mileage. Plan replacements before tires become unsafe.