An Offset to Backspacing Calculator helps you convert between wheel offset and backspacing to ensure the right fitment for your wheels. Follow these steps based on your needs:

To Calculate Backspacing:

1. Enter the Wheel Width:
2. Enter the Offset:
3. Press "Calculate Backspacing":

Result:
You’ll receive the backspacing measurement in inches.

To Calculate Offset:

1. Enter the Wheel Width:
2. Enter the Backspacing:
3. Press "Calculate Offset":

Result:
You’ll receive the offset measurement in millimeters (e.g., +25mm or -12mm).

Tips:

• If you are physically measuring a wheel's width to use on this calculator, ensure you measure the wheel width from inside lip to inside lip (not the outer edges).
• A positive offset means the mounting surface is closer to the front face of the wheel.
• A negative offset means the mounting surface is deeper toward the back face of the wheel.

Using these calculations helps ensure your wheels have the proper fitment, avoiding rubbing issues or improper stance.