Use the calculator to determine the effect of changing your wheel width and offset.

  1. Enter your current wheel width and offset.
  2. Enter the width and offset of the wheel you are considering.
  3. Click "calculate" . The results will show clearance between the inside of the wheel and the strut housing. It will also show how far the outside of the wheel edge will extend or retract. Low inner clearance or too much outside wheel and tire extension may cause rubbing or fit issues.

Note: This calculator is for information purposes only and we do not guarantee fitment based on this calculator alone.

Current Wheel Specs Width inches Offset mm Decrease Offset Increase Offset
New Wheel Specs Width inches Offset mm Decrease Offset Increase Offset
Calculate
Inner Clearance:
(the inside of the wheel to the strut housing)
Outer Position:
(position of the outside edge of the wheel)

Corvette Wheel Offset Chart

Size Offset Application
17" × 8.5" +56 88-96 frt/rear, 97-04 frt
17" × 9.5" +54 88-96 frt/rear, 97-04 frt
17" × 11" +36 90-95 ZR1 rear
17" × 11" +50 96 Grand Sport rear
18" × 8.5" +56 88-96 frt/rear, 97-13 frt exc. C6 Z06, ZR1, Grand Sport, 14-15 frt exc. Z51
18" × 9.5" +40 84-87 frt/rear, 06-13 Z06 & Grand Sport frt
18" × 9.5" +57 97-04 rear, 05-13 frt
18" × 10.5" +58 97-04 rear
19" × 8.5" +79 14-15 frt w/ Z51
19" × 10" +40 06-13 C6 Z06, ZR1 & Grand Sport frt, 427 Convertible frt
19" × 10" +43 15 Z06 frt
19" × 10" +56 97-04 rear
19" × 10" +79 05-15 rear (14-15 exc. Z51)
19" × 11" +64 97-04 rear
19" × 11" +79 05-13 rear
19" × 12" +59 06-13 C6 Z06 & Grand Sport
20" × 10" +79 14-15 rear w/ Z51
20" × 12" +59 06-13 C6 Z06, ZR1 & Grand Sport rear, 427 Convertible rear, 15 Z06 rear