Offset and backspacing
Convert either way for any wheel width, including the half-inch rim-flange allowance real wheels have.
Offset & backspacing
Convert Tacoma wheel offset and backspacing.
Enter wheel width with an offset or backspacing to convert between them and see how far the tire moves in or out.
What it does
How this tool helps.
Poke and tuck
See how many millimeters a lower or negative offset moves the tire outward versus stock.
Tacoma factory offsets
Stock offsets by generation and trim so you can compare an aftermarket wheel to what is on the truck.
Related tools and guides
Wheel Offset and Backspacing Calculator FAQ.
Backspacing equals half the wheel width plus a 0.5 inch rim-flange allowance plus the offset divided by 25.4. Enter your width and offset above to do it automatically.
3rd gen wheels are roughly +25 to +30 mm, with the TRD Pro lower near +10 to +13 mm. 4th gen base wheels are unusually high at about +55 to +60 mm, while TRD Pro and Trailhunter run about +20 to +25 mm.
A lower or negative offset pushes the tire outward, which increases rubbing at the fender, liner, and front bumper, especially at full lock. Higher offset pulls the tire inboard toward the upper control arm.