Tire Overlay Visualizer
Draw one tire on top of the other. Use the calculator below. Results update as you type.
How the Tire Overlay Visualizer Works
This visualizer works by drawing 2 tire outlines on top of each other with a shared hub center at a common scale. The edges that do not line up show exactly where the tires differ.
- Enter Tire A, for example 265/70R17.
- Enter Tire B, for example 315/70R17.
- View the outlines stacked on one center point.
- Read the top edge shift (+35.0 mm) and side shift (+25.0 mm per side).
The Formula
The formula is Top Shift = Radius_B − Radius_A and Side Shift = (Width_B − Width_A) ÷ 2.
Radius = Overall Diameter ÷ 2 Top Edge Shift = R_B − R_A Side Shift = (W_B − W_A) ÷ 2 Scale Ratio = D_B ÷ D_AWorked example: 275/55R20 to 275/65R20 moves the top edge 27.5 mm and leaves the sides unchanged.
Conversion Table
The conversion table lists the overlay shifts for 6 tire pairs. Top edge shifts run from −0.2 mm to +35.0 mm.
A near-zero top shift, as in 205/55R16 to 225/50R16, means the outlines overlap almost exactly at the top and differ only at the sides.
| Tire A | Tire B | Top Edge Shift (mm) | Each Side Width Shift (mm) | Scale Ratio B/A |
|---|---|---|---|---|
| 205/55R16 | 225/50R16 | -0.2 | +10.0 | 0.999 |
| 225/65R17 | 245/65R17 | +13.0 | +10.0 | 1.036 |
| 265/70R17 | 285/70R17 | +14.0 | +10.0 | 1.035 |
| 265/70R17 | 315/70R17 | +35.0 | +25.0 | 1.087 |
| 245/45R18 | 245/40R19 | +0.4 | 0.0 | 1.001 |
| 275/55R20 | 275/65R20 | +27.5 | 0.0 | 1.068 |
What Is the Tire Overlay Visualizer?
The Tire Overlay Visualizer is a tool that overlays tire outlines at a common scale to show differences. Overlays show small changes that side-by-side drawings hide.
The shared center reflects how the tires mount on the same hub, so the drawing shows where the new tire gains or loses space inside the wheel well.
Common Uses
This visualizer has 4 uses: clearance previews, plus-size checks, AWD checks and presentations.
- Preview clearance: See where the new tire grows.
- Check plus sizes: Confirm outlines match.
- Check AWD sets: Spot small diameter gaps.
- Present options: Show customers the change.