Fitment Industries Metric to Imperial Tire Converter
Looking to buy new tires but you're not sure how the tire sizes change from metric to standard? Use this calculator to make sure you're getting the size you need!
Metric to Standard Conversion Calculator
Convert Wheel Measurements Instantly
Wheel and tire specs use both metric and imperial measurements, and that mix can make comparing specs confusing.
For example:
- Offset is measured in millimeters
- Backspacing is measured in inches
- Tire width is metric
- Wheel diameter is inches
This calculator converts between the two instantly so you can compare specs without doing the math yourself.
It’s especially helpful when you're:
- Comparing international wheel brands
- Cross-referencing spec sheets
- Matching fitment measurements taken in your garage
Small conversions matter more than most people think. A 5mm offset change is less than a quarter inch, but it can still dramatically change wheel position.
Use the Metric Conversion Calculator to translate your measurements and keep your build moving forward.
Convert your specs now and keep your fitment dialed in.