Enter your tire's Speed Rating Letter (like H, V, or ZR) and choose your preferred Speed Units, and this Tire Speed Rating Chart Calculator tells you the Maximum Speed your tires are rated to handle — plus the Performance Category, Typical Vehicle Type, and a sensible Recommended Daily Max to keep you safely within your rubber's limits.
Maximum Speed
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Performance Category
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Typical Vehicle Type
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Recommended Daily Max
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Look at your tire sidewall for the speed rating letter at the end of the tire size code, after the load index number. For example, in '225/60R16 98H', the 'H' is your speed rating.
Higher speed ratings typically offer better grip, handling, and braking performance, but may have shorter tread life. Only upgrade if your driving needs justify the trade-offs.
Exceeding the speed rating can cause tire overheating, structural damage, and potentially dangerous blowouts. Always stay within your tire's maximum speed limit for safety.
It's not recommended to mix speed ratings. If you must, install lower-rated tires on the rear axle and never exceed the lowest speed rating on your vehicle.
Speed ratings indicate overall tire construction quality, affecting ride comfort, cornering ability, heat resistance, and braking performance - not just maximum speed capability.
Yes, winter tires often have lower speed ratings (typically Q, T, or H) due to their softer rubber compounds designed for cold weather grip rather than high-speed performance.
Speed rating indicates maximum safe speed, while load index shows maximum weight capacity. Both are critical safety specifications that must match your vehicle's requirements.