1.0 Safe to install
Perfect Tool for Tire Sizing Needs
Tire Size Calculator Plus offers an easy-to-use interface and accurate calculations to ensure your vehicle is equipped with the correct tires, making it a must-have for automotive enthusiasts.
When considering tire purchases, it is essential to accurately compare sizes to ensure the right fit for your vehicle. Our tire size calculator simplifies this process by enabling a direct comparison of two tire sizes based on diameter, width, sidewall height, circumference, and revolutions per mile.
This tool allows users to select any two tire sizes and provides comprehensive data on their differences, alongside both metric and imperial outputs. It also features practical examples of speedometer readings with the first tire, comparing them to the actual speed if the second tire were to be installed. Visual illustrations of the two tire sizes further enhance understanding of their differences in shape and size. This resource proves invaluable for those seeking tires that deviate from stock specifications.
Understanding your tire’s sidewall is crucial:
- Tire Type: The letter "P" at the beginning of a tire size denotes a P-Metric tire, which adheres to standards set for passenger vehicles in the United States.
- No Prefix: A tire size without a letter prefix indicates a Euro Metric tire, which may possess different load capacities compared to P-Metric tires.
- LT Designation: The letters "LT" signify the tire is intended for light trucks, often requiring higher inflation pressures than standard passenger tires.
- Owner’s Manual Reference: Always consult your vehicle's owner's manual or the tire placard for recommended tire sizes and inflation pressures.
The following terms are important in understanding tire sizing:
- Tire Width: Measured in millimeters from sidewall to sidewall, this dimension is represented by the first three-digit number in a tire size. For example, in a size P220/40 R17, the width is 220 millimeters.
- Aspect Ratio: This ratio compares the tire's cross-section height to its width, indicated by the two-digit number following the slash mark. In P220/40 R17, the aspect ratio is 40%, meaning the height is 40% of the width. A higher aspect ratio results in a taller sidewall.
- Construction: The letter "R" denotes radial construction, indicating that layers within the tire run radially across its structure.
- Wheel Diameter: This measurement indicates the wheel's size, denoted from one edge to another. For instance, a P220/40 R17 tire fits a wheel with a 17-inch diameter.
Your support is appreciated, and further resources can be explored at nitrio.com for additional apps tailored for iOS devices.
Overview
Tire Size Calculator Plus is a Commercial software in the category System Utilities developed by Heng Jia Liang.
The latest version of Tire Size Calculator Plus is 1.0, released on 01/14/2025. It was initially added to our database on 01/14/2025.
Tire Size Calculator Plus runs on the following operating systems: iOS.
Users of Tire Size Calculator Plus gave it a rating of 3 out of 5 stars.
Boris Weber
I am an editor at UpdateStar. I started as a support engineer, and am now specialized in writing about general software topics from a usability and performance angle among others. I telecommute from UpdateStar’s Berlin office, when I am not working remote as a digital nomad for UpdateStar. When I'm not analyzing the latest software updates, you can find me exploring new cities, immersing myself in local cultures, and discovering innovative tech trends across the globe.
Latest Reviews by Boris Weber
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