Tire Specification Comparator
Compare exact tire models in one size side by side: service description, tread depth, UTQG, weight, label ratings and warranty.
Compare exact models in a common size.
Tire Specification Comparator: Tire Size Inputs
Compare two tire sizes here. Use the formulas and reference tables below for this tool's specific calculation.
How Tire Specification Comparator Works?
The Tire Specification Comparator works by placing the published specifications of 2 or 3 tire models in the same size into aligned rows. The tool uses 4 steps.
Fix the size
Type one size, for example 225/45 R17, so every model compares on equal terms.
Enter each model
Type up to 3 models with their spec sheet values.
Align the rows
The comparator lines up service description, tread depth, UTQG, weight, label classes and warranty.
Highlight leaders
The comparator marks the best value in each row.
Tire Specification Comparator Formula
The Tire Specification Comparator ranks each row with Best = max or min of the row, depending on whether a higher or lower value is better.
Best = max(x_i) (load, speed, tread, treadwear, warranty)Best = min(x_i) (weight, noise, rolling resistance)Δ_i = x_i − Best- x_i
- Value for model i in one row
Worked example
Model C leads on tread depth at 8.7 mm (11/32 in), on weight at 10.0 kg (22.0 lb) and on warranty at 65,000 mi. Model B leads on speed rating (Y) and traction grade (AA).
Tire Specification Comparator Conversion Table
The Tire Specification Comparator conversion table shows a sample comparison of 3 models across 7 specifications.
| Specification | Model A | Model B | Model C |
|---|---|---|---|
| Load index / speed | 94W | 94Y XL | 94V |
| Tread depth new | 8.0 mm (10/32 in) | 7.1 mm (9/32 in) | 8.7 mm (11/32 in) |
| UTQG | 500 A A | 300 AA A | 640 A B |
| Weight | 10.4 kg (22.9 lb) | 10.9 kg (24.0 lb) | 10.0 kg (22.0 lb) |
| EU label (RR / wet / noise) | B / A / 70 dB | C / A / 71 dB | B / B / 69 dB |
| Rim width range | 7.0–8.5 in | 7.0–8.5 in | 7.0–8.5 in |
| Treadwear warranty | 50,000 mi (80,467 km) | None | 65,000 mi (104,607 km) |
Model values are illustrative. Real values come from each model's specification sheet.
What is Tire Specification Comparator?
A Tire Specification Comparator is a tool that compares exact tire models in one shared size across every published specification. Size-based tools treat all tires of one size as equal. The Tire Specification Comparator separates the models.
Specifications differ widely within one size. New tread depth can vary by 2 mm (0.08 in), weight by 15%, and treadwear grade by a factor of 2.
The comparator keeps one size fixed to stop size differences hiding model differences.
What are the uses of Tire Specification Comparator?
There are 4 main uses of the Tire Specification Comparator, including model shortlisting and value analysis.
Model shortlisting
Compare 3 finalists on one screen.
Value analysis
Weigh warranty and tread depth against price.
Performance trade-offs
See what a performance tire gives up in wear.
Shop quotes
Compare the models in 2 shop quotes.
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