215/60R17 vs 225/60R17 tire size
A 225/60R17 is 0.47 inches (12 mm) taller and 0.39 inches (10 mm) wider than a 215/60R17. Fit them in place of 215/60R17 tires and the speedometer reads low: at 60 mph on it you’re doing 61.0 mph, 1.7% faster, and the vehicle sits 0.24 inches (6 mm) higher.
Sources checked
| Dimension | 215/60R17 | 225/60R17 | Change |
|---|---|---|---|
| Overall diameter | 27.16 in (690 mm) | 27.63 in (702 mm) | +0.47 in (+12 mm) |
| Section width | 8.46 in (215 mm) | 8.86 in (225 mm) | +0.40 in (+10 mm) |
| Sidewall height | 5.08 in (129 mm) | 5.31 in (135 mm) | +0.23 in (+6 mm) |
| Aspect ratio | 60% | 60% | |
| Rim diameter | 17 in | 17 in | |
| Circumference | 85.3 in (2,167 mm) | 86.8 in (2,205 mm) | +1.5 in |
| Revolutions per mile | 743 | 730 | −13 |
| Revolutions per km | 461 | 454 | −7 |
Check another speed or size
Metric, LT and flotation
At 60 mph on the speedometer you’re doing
61.0mph
+1.7% · the speedometer reads low
- Height
- +0.47 in (+12 mm)
- Width
- +0.39 in (+10 mm)
- Ground clearance
- +0.24 in (+6 mm)
- Each side, same wheel
- +0.20 in (+5 mm)
215/60R17 and 225/60R17 side by side
| Dimension | 215/60R17 | 225/60R17 | Change |
|---|---|---|---|
| Overall diameter | 27.16 in (690 mm) | 27.63 in (702 mm) | +0.47 in (+12 mm) |
| Section width | 8.46 in (215 mm) | 8.86 in (225 mm) | +0.40 in (+10 mm) |
| Sidewall height | 5.08 in (129 mm) | 5.31 in (135 mm) | +0.23 in (+6 mm) |
| Aspect ratio | 60% | 60% | |
| Rim diameter | 17 in | 17 in | |
| Circumference | 85.3 in | 86.8 in | +1.5 in |
| Revolutions per mile | 743 | 730 | −13 |
| Revolutions per km | 461 | 454 | −7 |
The working
- 215/60R17: sidewall = 215 mm × 60% = 129.0 mm = 5.08 in.
- Diameter = rim + 2 × sidewall = 17 + 2 × 5.08 = 27.16 in (690 mm).
- Circumference = π × 27.16 = 85.3 in; revolutions per mile = 63,360 ÷ 85.3 = 743.
- 225/60R17: sidewall = 225 mm × 60% = 135.0 mm = 5.31 in.
- Diameter = rim + 2 × sidewall = 17 + 2 × 5.31 = 27.63 in (702 mm).
- Circumference = π × 27.63 = 86.8 in; revolutions per mile = 63,360 ÷ 86.8 = 730.
- Speedometer. True speed = what it shows × new diameter ÷ old = 60 × 27.63 ÷ 27.16 = 61.0 mph.
- Ground clearance. Half the change in diameter: (27.63 − 27.16) ÷ 2 = +0.24 in.
Speedometer
A 225/60R17 turns 730 times a mile against the 215/60R17’s 743. With a speedometer set for 215/60R17, true speed is what it shows × 27.63 ÷ 27.16:
| Speedometer shows | True speed | Difference |
|---|---|---|
| 25 mph | 25.4 mph | +0.4 mph |
| 35 mph | 35.6 mph | +0.6 mph |
| 45 mph | 45.8 mph | +0.8 mph |
| 55 mph | 56.0 mph | +1.0 mph |
| 65 mph | 66.1 mph | +1.1 mph |
| 75 mph | 76.3 mph | +1.3 mph |
Clearance
- Ground clearance: +0.24 in (+6 mm), half the change in diameter.
- Top of the tread: +0.24 in (+6 mm), so that much less room under the fender.
- Each side, on the same wheel: +0.20 in (+5 mm), toward the suspension inside and toward the fender lip outside.
A new wheel with a different width or offset moves the tire again. The sidewall goes from 5.08 to 5.31 inches.
What tire makers publish
Inflated on the maker’s measuring rim; the percentage is against the arithmetic.
| Tire | Size as printed | Diameter | Width | Revs per mile |
|---|---|---|---|---|
| Toyo Extensa A/S II | 215/60R17 | 27.2 in (+0.2%) | 8.7 in | 765 |
| Toyo Extensa A/S II | 225/60R17 | 27.6 in (−0.1%) | 9 in | 752 |
| Toyo Open Country A/T III | 225/60R17 | 27.6 in (−0.1%) | 9 in | 752 |
Each size on its own
- 215/60R17 tire size: 27.2 × 8.5 in
- 225/60R17 tire size: 27.6 × 8.9 in
Other comparisons
Questions
Can I fit 225/60R17 tires instead of 215/60R17?
They fit the same 17-inch wheels. A 225/60R17 is 0.47 inches (12 mm) taller and 0.39 inches (10 mm) wider than a 215/60R17, so check three things first: that your wheels are within the 225/60R17’s approved rim width range, which tire makers list for each size; that it clears the fenders and suspension at full lock and full travel; and that its load index meets what your door-jamb placard asks for.
How far off is the speedometer with 225/60R17 tires?
With a speedometer set for 215/60R17, the speedometer reads low: at 60 mph on it you’re doing 61.0 mph, 1.7% faster. The odometer is off the same way: over 1,000 miles driven it shows 982.9.
Does 225/60R17 change the ground clearance?
By +0.24 inches (+6 mm), half the change in diameter, at the axles and at the lowest point under them. On the same wheel, each sidewall sits 0.20 inches further out, inside and outside.
Sources
- Bridgestone Americas: Determining tire size: P-metric, Euro-metric, LT-metric, C-type and flotation sizes, and what each number means (checked October 28, 2026)
- Toyo Tires: Extensa A/S II sizes and specifications: inflated overall diameter and width, revolutions per mile (checked October 28, 2026)
- Toyo Tires: Proxes Sport A/S sizes and specifications: inflated overall diameter and width, revolutions per mile (checked October 28, 2026)
- Toyo Tires: Open Country A/T III sizes and specifications: P-metric, LT-metric and flotation sizes, with revolutions per mile (checked October 28, 2026)
- Nitto Tire: Trail Grappler M/T sizes and specs: inflated overall diameter and width, LT-metric and flotation sizes (checked October 28, 2026)
Spotted a number that doesn’t match your manual or a source? Tell us; corrections are logged on the sources page.