Tire Label Rating Comparator
Compare EU tyre label ratings for rolling resistance, wet grip and noise. See the class limits behind each letter for C1 car tires.
Compare ratings within the same labeling scheme.
Tire Label Rating Comparator: Tire Size Inputs
Compare two tire sizes here. Use the formulas and reference tables below for this tool's specific calculation.
How Tire Label Rating Comparator Works?
The Tire Label Rating Comparator works by decoding each label letter into its class limits and comparing 2 tires class by class within the same labeling scheme. The tool uses 4 steps.
Pick the scheme
Choose the EU label (Regulation 2020/740), the UK label or another scheme. Ratings only compare within one scheme.
Enter both labels
Type the fuel efficiency, wet grip and noise classes, for example B / A / 70 dB B and C / B / 72 dB B.
Decode the limits
The comparator lists the coefficient range behind each letter.
Read class gaps
The comparator reports 1 class better on rolling resistance, 1 class better on wet grip and 2 dB quieter for the first tire.
Tire Label Rating Comparator Formula
The Tire Label Rating Comparator uses the class limits in EU Regulation 2020/740, with rolling resistance in kg/t and wet grip as an index G against a reference tire.
RRC = F_rolling ÷ Load (kg/t)G = μ_candidate ÷ μ_referenceΔclass = position(letter₂) − position(letter₁)- RRC
- Rolling resistance coefficient (kg per tonne)
- G
- Wet grip index
- dB
- External rolling noise, decibels
Worked example
A tire labeled A for wet grip has G ≥ 1.55, and a tire labeled C has G of 1.25–1.39. At the class edges, the A tire grips at least 11.5% better than the best C tire in the wet braking test.
Tire Label Rating Comparator Conversion Table
The Tire Label Rating Comparator conversion table lists the 5 EU label classes for C1 passenger tires with the limit behind each class.
| Class | Rolling resistance | Wet grip index G | Noise |
|---|---|---|---|
| A | ≤ 6.5 kg/t | ≥ 1.55 | A / B / C + dB value |
| B | 6.6–7.7 kg/t | 1.40–1.54 | — |
| C | 7.8–9.4 kg/t | 1.25–1.39 | — |
| D | 9.5–10.5 kg/t | 1.10–1.24 | — |
| E | ≥ 10.6 kg/t | ≤ 1.09 | — |
What is Tire Label Rating Comparator?
A Tire Label Rating Comparator is a tool that compares tires on the standardized label printed at the point of sale. The EU label shows fuel efficiency, wet grip and external noise, plus icons for snow and ice performance.
Labels from different schemes do not compare letter for letter. The 2021 EU label uses A–E, and the pre-2021 EU label used A–G with different limits.
The label rates 3 properties only. Dry grip, wear life and handling sit outside the label.
What are the uses of Tire Label Rating Comparator?
There are 4 main uses of the Tire Label Rating Comparator, including fuel efficiency shopping and wet safety choices.
Fuel efficiency shopping
Pick a lower-rolling-resistance tire for an EV or long commutes.
Wet safety choices
Prioritize A or B wet grip classes.
Noise comparison
Compare decibel values for a quieter cabin.
Fleet tenders
Set minimum label classes in a purchase spec.
Related Ratings, Testing & Mass Tools
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