215/65 R16
What size is 215/65 R16?
215/65 R16 has an overall diameter of about 27.00 in, a section width of 8.46 in and a sidewall height of 5.50 in. It turns roughly 747 times per mile. Below are the exact figures plus in-tolerance plus/minus sizes you can switch to safely.
- Overall diameter: 27.00 in.
- Section width: 8.46 in.
- Sidewall height: 5.50 in.
- Revolutions: 464 /km · 747 /mi.
- In-tolerance sizes: 255/35 R20 (+0.1%).
Fitment verdict
255/35 R20 stays within the configured tolerance for 215/65 R16: +0.1% diameter and +0.1% speedometer effect.
| Metric | This size: 215/65 R16 | Alternative: 255/35 R20 | Difference | Verdict |
|---|---|---|---|---|
| Overall diameter | 27.00 in | 27.03 in | +0.1% | Within tolerance |
| Section width | 8.46 in | 10.04 in | +1.57 in | Computed difference |
| Sidewall height | 5.50 in | 3.51 in | -1.99 in | Computed difference |
| Circumference | 84.84 in | 84.91 in | +0.1% | Within tolerance |
| Speedo | 0.0% | +0.1% | +0.1% | 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 | 27.00 in |
|---|---|
| Section width | 8.46 in |
| Sidewall height | 5.50 in |
| Circumference | 84.84 in |
| Revolutions | 464 /km · 747 /mi |
In-tolerance sizes
Alternative sizes that stay within the safe diameter tolerance:
| Size | Diameter | Speedo | Verdict |
|---|---|---|---|
| 255/35 R20 | +0.1% | +0.1% | ✓ OK |
| 255/40 R19 | +0.1% | +0.1% | ✓ OK |
| 255/45 R18 | +0.1% | +0.1% | ✓ OK |
| 235/60 R16 | +0.4% | +0.4% | ✓ OK |
| 215/70 R15 | -0.6% | -0.6% | ✓ OK |
| 215/60 R17 | +0.6% | +0.6% | ✓ OK |
| 235/55 R17 | +0.6% | +0.6% | ✓ OK |
| 235/50 R18 | +0.9% | +0.9% | ✓ OK |
| 245/35 R20 | -0.9% | -0.9% | ✓ OK |
| 225/55 R17 | -1.0% | -1.0% | ✓ OK |
| 245/40 R19 | -1.1% | -1.1% | ✓ OK |
| 245/45 R18 | -1.2% | -1.2% | ✓ OK |
Compare sizes
- Within tolerance · Diameter +0.1%.
- Speedo @ 60: 60 mph → 60.1 mph.
- Sidewall -1.99 in · Width +1.57 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
- 27.00 in 27.03 in+0.02 in
- Sidewall
- 5.50 in 3.51 in-1.99 in
- Width
- 8.46 in 10.04 in+1.57 in
- Circumference
- 84.84 in 84.91 in+0.1%
- Revs / mile
- 747 746
- Speedo @ 60
- 60 mph 60.1 mph+0.1%
- Current —
215/65 R16 - New —
255/35 R20 - Grounded to the road: the axle rises +0.01 in.
Result report
215/65 R16 255/35 R20 · Within tolerance
Use this size when shopping: 255/35 R20
Geometric estimate. Always verify physical clearance (arches, suspension, brakes) before fitting.
Safe alternative sizes
| Size | Diameter | Speedo @ 100 | Use this |
|---|---|---|---|
−1″ 305/50R15 | +0.0% | +0.0% | |
OE 215/65R16 | +0.0% | +0.0% | |
+1″ 195/65R17 | -0.1% | -0.1% | |
+2″ 285/40R18 | -0.1% | -0.1% |
More tools
- How to read a tire size
- Plus sizing guide
- Speedometer error guide
- 215mm Section width guide
- /65 Aspect ratio guide
- Rim diameter 16"
- 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.