Sidewall to Diameter Car Tyres Tyres Size Chart
Complete Sidewall to Diameter size conversion chart for car tyres tyres. Click any size for a detailed conversion.
Quick Converter
| Sidewall | Diameter |
|---|---|
| 4.0" | 22.1" |
| 4.2" | 22.4" |
| 4.5" | 22.8" |
| 4.7" | 23.2" |
| 4.5" | 24.0" |
| 4.7" | 24.5" |
| 5.0" | 25.0" |
| 5.3" | 25.5" |
| 4.0" | 23.0" |
| 4.2" | 23.4" |
| 4.4" | 23.7" |
| 4.6" | 24.2" |
| 4.4" | 24.9" |
| 4.7" | 25.3" |
| 4.9" | 25.7" |
| 4.8" | 25.7" |
| 5.1" | 26.2" |
| 5.3" | 26.6" |
| 3.8" | 24.6" |
| 4.0" | 25.0" |
| 4.2" | 25.3" |
| 4.3" | 25.7" |
| 4.2" | 25.5" |
| 4.4" | 25.9" |
| 4.7" | 26.3" |
| 4.9" | 26.7" |
| 5.1" | 27.2" |
| 3.5" | 25.1" |
| 3.7" | 25.4" |
| 3.9" | 25.7" |
| 4.0" | 26.0" |
| 4.0" | 26.0" |
| 4.2" | 26.3" |
| 4.3" | 26.7" |
| 4.6" | 27.3" |
| 5.1" | 28.2" |
| 3.2" | 25.5" |
| 3.4" | 25.8" |
| 3.5" | 26.0" |
| 3.9" | 26.7" |
| 4.0" | 27.0" |
| 4.3" | 27.7" |
| 4.5" | 28.0" |
| 3.4" | 26.8" |
| 3.5" | 27.0" |
| 3.8" | 27.6" |
| 3.9" | 27.7" |
| 4.0" | 28.0" |
| 4.3" | 28.7" |
| 4.5" | 29.0" |
Frequently Asked Questions
- How do I read the sidewall tyre size notation?
- A metric tyre size like 4.9" describes the width in mm, aspect ratio as a percentage, and rim diameter in inches. For example, 4.9" has a diameter of 26.7".
- Can I change my tyre size?
- You should only use sizes recommended by your vehicle manufacturer. Different sizes affect speedometer accuracy, handling, and fuel economy. Consult a tyre specialist for advice.
- What is the overall diameter of a 4.9" tyre?
- A 4.9" tyre has a diameter of 26.7". The overall diameter affects ground clearance and speedometer calibration.