# Tire Size to Inches Converter

Convert any tire size to inches and between metric and flotation formats. See overall diameter, section width, sidewall, circumference, and revolutions per mile.

## Canonical URL
https://tacotires.com/tire-size-to-inches

## What It Does
- Inches from any size: Overall diameter, section width, sidewall height, circumference, and revolutions per mile for the size you enter.
- Metric and flotation: Shows the equivalent in the other format, so 285/70R17 and 33x12.50R17 can be compared directly.
- Format explainer: Clarifies that a flotation size leads with diameter while a metric size leads with section width in millimeters.

## Summary
- Converts a single tire size to inches: diameter, section width, sidewall, circumference, and revolutions per mile.
- Translates between metric sizes like 265/70R17 and flotation sizes like 33x12.50R17.
- Explains that in flotation format the first number is diameter, while in metric the first number is section width in millimeters.

## FAQ
### What is 265/70R17 in inches?
265/70R17 is about 31.6 inches in overall diameter with a 10.4 inch section width on a 17 inch wheel. Enter it above to see sidewall height, circumference, and revolutions per mile.

### Is a 285/70R17 a 33 inch tire?
Close. 285/70R17 calculates to about 32.7 inches, and real-world diameter varies by brand and tread from roughly 32.7 to 33.1 inches, so it is marketed as a 33.

### Why is 33x12.50 different from 285?
In flotation sizing the first number is overall diameter in inches. In metric sizing the first number is section width in millimeters. They only line up because a 285/70R17 happens to be about 32.7 inches tall.

## Related Tools
- [Tire size calculator](https://tacotires.com/tire-calculator)
- [Plus-size calculator](https://tacotires.com/plus-size-calculator)

## Keywords
- 265/70r17 in inches
- 285 70 17 in inches
- tire size to inches
- metric to inch tire conversion
- convert 33x12.50 to metric
- is 285/70r17 a 33