Wheel Offset Calculator

All along with the variety of the custom tires and wheels, even an experienced motorist can be confronted with the problem of choosing them. Allowing a small mistake in the calculation of the size and the tire or disk may not be suitable for your car. Moreover, even in the stores, you can pick up the wrong size since the main task of the seller is to sell as quickly as possible. But we know the solution to how to prevent this. Use our wheel offset calculator to prevent unnecessary purchases.

Why do I need to use such calculator? Each car in the factory is equipped with a certain size of the offset, which is characterized by the three main parameters – the width of the tread, the height of the tire (distance from the ground to the bottom edge of the disk) and the diameter of the hole for the wheel disc. It is very important to understand that the manufacturer selects these sizes not by chance, but taking into account many factors and calculations. Also, these parameters can significantly affect a number of the indicators when operating a car, which can be provided by our calculator.

Such as the indication of the speedometer, fuel consumption, ride comfort on the road or off-road, safety, etc. That is why when changing the factory size of tires, you need to approach with an understanding of all the nuances and possible consequences of such changes. The wheel offset is in the fact one of the most important of its geometric parameters. It is believed that the offset should exactly meet the requirements of the car manufacturer and no deviation in any direction can be considered permissible. Solve all these problems and complexities can our wheel offset calculator, which not only calculates for you a real change in the characteristics of the wheel but also warns about the consequences.

With our wheel offset calculator by car, you can easily calculate the difference in wheel and tire positions when switching to different wheel offsets/backs or tire sizes. To do this, you just need to enter the current tire and wheel alignment, including wheel offset and then add a new setting to compare the position. Our wheel offset calculator visual will show you a new setting that will be highlighted in other colors.

Also, you will see a comparison of the two dimensions and the change in the speedometer readings. Our calculator will give you the offset comparison and calculate the differences in diameter, width, aspect ratio and revs per mile, as well as changes in key measurement differences. You can see the gap of the top of the tire to the wing, the inside of the tire to the suspension and frame of the car, as well as the scoop of the tire.

Also, we suggest you to use our offset converter to convert the wheel offset in the opposite direction and vice versa. Just select the wheel size and start entering either an offset or a return, and the equivalent will be shown. We only use the offset for the calculator, so if you know that backspacing, and not the offset, just convert it and enter the offset in the field. We do this because the displacement does not require the width of the wheel to determine the correct mounting surface of the wheel.

Let’s see what the wheels offset is. The wheel offset is the distance in millimeters from the centerline of the wheel to the mounting surface. The positive offset will occur when the mounting surface is closer to the end of the wheel. With a negative offset, the attachment point is located closer to the inside of the wheel. There is also a center offset or no offset when the attachment point is directly on the centerline of the wheel.

Now let’s consider what the wheels backspacing is? The wheel backspacing is an inch distance from the mounting surface to the inner edge of the wheel. The width of the wheel from the tire attachment points, so the measured wheel width from the outer edge to the outer edge is about an inch wider than the specification. The 8 “wheel will measure 9” from side to side, which is what makes the displacement transformation in the opposite direction not so straightforward. If the 8-inch wheel has a central offset, then the reverse movement is not 4 “, it’s actually 4.5”.