285/35 R22
What size is 285/35 R22?
285/35 R22 has an overall diameter of about 29.85 in, a section width of 11.22 in and a sidewall height of 3.93 in. It turns roughly 676 times per mile. Below are the exact figures plus in-tolerance plus/minus sizes you can switch to safely.
- Overall diameter: 29.85 in.
- Section width: 11.22 in.
- Sidewall height: 3.93 in.
- Revolutions: 420 /km · 676 /mi.
- In-tolerance sizes: 235/70 R17 (+0.3%).
Fitment verdict
235/70 R17 stays within the configured tolerance for 285/35 R22: +0.3% diameter and +0.3% speedometer effect.
| Metric | This size: 285/35 R22 | Alternative: 235/70 R17 | Difference | Verdict |
|---|---|---|---|---|
| Overall diameter | 29.85 in | 29.95 in | +0.3% | Within tolerance |
| Section width | 11.22 in | 9.25 in | -1.97 in | Computed difference |
| Sidewall height | 3.93 in | 6.48 in | +2.55 in | Computed difference |
| Circumference | 93.79 in | 94.10 in | +0.3% | Within tolerance |
| Speedo | 0.0% | +0.3% | +0.3% | Within tolerance |
Seasonal check
Planning a long summer drive?
Use the budget and running-cost tools before a trip, especially if the current tyres are worn or the replacement size changes diameter.
Specification
| Overall diameter | 29.85 in |
|---|---|
| Section width | 11.22 in |
| Sidewall height | 3.93 in |
| Circumference | 93.79 in |
| Revolutions | 420 /km · 676 /mi |
In-tolerance sizes
Alternative sizes that stay within the safe diameter tolerance:
| Size | Diameter | Speedo | Verdict |
|---|---|---|---|
| 235/70 R17 | +0.3% | +0.3% | ✓ OK |
| 275/45 R20 | -0.4% | -0.4% | ✓ OK |
| 235/65 R18 | +0.6% | +0.6% | ✓ OK |
| 255/50 R20 | +0.6% | +0.6% | ✓ OK |
| 255/65 R17 | +0.7% | +0.7% | ✓ OK |
| 305/40 R20 | -0.8% | -0.8% | ✓ OK |
| 245/60 R18 | -0.9% | -0.9% | ✓ OK |
| 245/65 R17 | -1.1% | -1.1% | ✓ OK |
| 245/70 R16 | -1.2% | -1.2% | ✓ OK |
| 265/50 R19 | -1.4% | -1.4% | ✓ OK |
| 265/45 R20 | -1.6% | -1.6% | ✓ OK |
| 265/40 R22 | +1.6% | +1.6% | ✓ OK |
Compare sizes
- Within tolerance · Diameter +0.3%.
- Speedo @ 60: 60 mph → 60.2 mph.
- Sidewall +2.55 in · Width -1.97 in.
How this result is calculated
Computed from nominal tire-size geometry: diameter, circumference and speedometer error. It does not check wheel-arch, suspension or brake clearance.
Methodology- Diameter
- 29.85 in 29.95 in+0.10 in
- Sidewall
- 3.93 in 6.48 in+2.55 in
- Width
- 11.22 in 9.25 in-1.97 in
- Circumference
- 93.79 in 94.10 in+0.3%
- Revs / mile
- 676 673
- Speedo @ 60
- 60 mph 60.2 mph+0.3%
- Current —
285/35 R22 - New —
235/70 R17 - Grounded to the road: the axle rises +0.05 in.
Result report
285/35 R22 235/70 R17 · Within tolerance
Use this size when shopping: 235/70 R17
Geometric estimate. Always verify physical clearance (arches, suspension, brakes) before fitting.
Safe alternative sizes
| Size | Diameter | Speedo @ 100 | Use this |
|---|---|---|---|
−1″ 225/50R21 | +0.0% | +0.0% | |
OE 285/35R22 | +0.0% | +0.0% | |
+1″ 145/60R23 | -0.0% | -0.0% | |
+2″ 135/55R24 | -0.0% | -0.0% |
More tools
- How to read a tire size
- Plus sizing guide
- Speedometer error guide
- 285mm Section width guide
- /35 Aspect ratio guide
- Rim diameter 22"
- Load index chart
- Speed rating chart
- Rim width and tyre fitment guide
- Wheel offset guide
- Wheel spacers guide
- Tyre pressure for heavy loads and towing
What changed
- Reviewed deterministic geometry, load/speed references, sitemap inclusion and localized page shell.