# How To Measure Wheel Offset In Mm

How To Measure Wheel Offset In Mm. Find the centerline of the wheel. One more time. this is how you measure the wheel offset on your vehicle.

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The distance from the centerline of the wheel to the. Now measure from the hub flange to the straight edge. The et of a wheel is the measurement in mm of how far the wheels centre line is from its mounting face.

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This distance is typically measured in millimeters and results in a negative. positive or zero offset. That gives you the offset of the wheel.

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The wheel offset measurement is in millimetres and results in a positive. negative. or zero offset. If playback doesnt begin shortly. try restarting your device.

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Your wheel’s width is measured from inside of the lip on one side to the inside of the lip on the other side. If the centerline number is smaller than the hub measurement. offset is positive.

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Measure the distance from the back edge of the wheel to the mounting face. Wheel offset is the distance in millimeters from the center line of the wheel to the mounting surface.

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If b is lower than c. then it’s a negative offset wheel. How to measure your wheel offset / et accurately.

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And the number is 171 mm. If the mounting surface is closer to the face of the wheel it is known to have a positive offset and if the mounting point is closer to the inside of the wheel it has a negative offset.

#### For Example. Wheel Width (W) = 244 Mm Centerline (C) = 122 Mm Backspacing (B) = 175 Mm.

Wheel widths are typically sized in 0.5 in (13 mm) increments. so if you get a number that doesn’t end in a full or half inch. check your measurements again. For example. an et45 wheel measurement has a positive offset of 45mm. which means that the mounting face is 45mm in front of the centre line. That gives you the offset of the wheel.

#### Let’s Say Your Wheels Is 10 Inches Wide. Your Centerline Is 5 Inches.

Divide that number by two to calculate the centerline of the wheel. Use this calculator to find your backspace by plugging in your offset in millimeters (mm) and rim width (inches) backspace will be displayed in inches. The et of a wheel is the measurement in mm of how far the wheels centre line is from its mounting face.

#### The Standard Unit To Describe The Offset Of A Wheel Is Millimeters. Which Can Be Negative. Positive Or Zero.

Offset is simply the distance from the hub mounting surface to the center of the wheel. • measure the overall width of the wheel in mm • find the centre line of the wheel. exactly half of the overall width • measure the distance from the back edge of the rim to the mounting face To convert inches to millimeters. multiply inches by 25.4 to convert millimeters to inches. divide mm by 25.4.

#### The Offset Of A Wheel Is Determined By Measuring The Distance Between Its Centerline And The Mounting Surface.

Rear spacing or back spacing is the distance from the backside of the wheel mounting pad to the outside of the rim flange. The result is also known as back spacing. If the offset of a wheel is not correct. handling can be affected.

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Locate the middle line of the wheel. accurately half of the wheel’s width. How to measure your wheel offset / et accurately. They may come with the letters et. although such is not the case all the time.