This Tire Size Calculator is designed for automotive enthusiasts and professionals to accurately calculate the dimensions of a tire based on its specifications. By entering the width, aspect ratio, and rim diameter, you can determine the sidewall height and total diameter of the tire.
Calculation Results
Data Source and Methodology
All calculations are based strictly on the standard formulas for tire dimensions. Please consult the tire manufacturer specifications for accurate measurements.
The Formula Explained
The sidewall height is calculated as: Sidewall Height = Tire Width × (Aspect Ratio / 100). The total diameter is calculated as: Total Diameter = (2 × Sidewall Height) + Rim Diameter.
Glossary of Terms
- Tire Width: The width of the tire in millimeters.
- Aspect Ratio: The ratio of the tire's cross-section height to its width.
- Rim Diameter: The diameter of the rim in inches.
- Sidewall Height: The height of the tire's sidewall in millimeters.
- Total Diameter: The overall diameter of the tire including the rim.
FAQ
What is a tire aspect ratio?
The aspect ratio is the height of the tire's cross-section to its width. It is expressed as a percentage.
Why is tire size important?
Tire size affects the vehicle's handling, fuel efficiency, and ride quality. It's crucial to use the correct tire size as specified by the vehicle manufacturer.
How do I find my tire size?
Tire size is usually indicated on the tire's sidewall or in the vehicle's owner's manual.
Can I change my tire size?
Changing tire size can affect your vehicle's performance and safety. Always consult a professional before making changes.