Tyre Size for Rim Size/Width Calculator - What's the best tyre size for my rim? - TyreSizeCalculator.com
Wheel Offset and backspacing calculator
Tips for ag tire size conversions
Tyre Chart - Metric to Imperial Conversion | Metric to imperial, Tyre size, Metric
Tire size calculator: compare tires online
Tire Calculator 2010 Download: Calculate the overall diameter and section height of a tire by providing information about the wheel size, with the aid of this portable tool