215/55R17 tire size
215/55R17 is a metric size: 26.3" tall, 8.5" wide, on a 17" rim — about a 26.5x8.50R17. The sidewall is 4.7" and the tire turns 767 times per mile.
215/55R17 specs
| Overall diameter (height) | 26.31" · 668 mm |
|---|---|
| Section width | 8.46" · 215 mm |
| Sidewall height | 4.66" · 118 mm (55% of width) |
| Rim diameter | 17" |
| Circumference | 82.66" · 2.100 m |
| Revolutions per mile | 767 (476 per km) |
| Inch (flotation) equivalent | 26.5x8.50R17 |
Equivalent sizes on a 17" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 225/50R17 common | 25.86" | -1.72% | +10 mm | 59.0 mph | compare → |
| 225/55R17 common | 26.74" | +1.65% | +10 mm | 61.0 mph | compare → |
| 235/55R17 common | 27.18" | +3.29% | +20 mm | 62.0 mph | compare → |
| 205/50R17 common | 25.07" | -4.71% | -10 mm | 57.2 mph | compare → |
| 215/50R17 common | 25.46" | -3.22% | 0 mm | 58.1 mph | compare → |
| 235/45R17 common | 25.33" | -3.74% | +20 mm | 57.8 mph | compare → |
| 245/45R17 common | 25.68" | -2.39% | +30 mm | 58.6 mph | compare → |
| 215/60R17 common | 27.16" | +3.22% | 0 mm | 61.9 mph | compare → |
| 235/50R17 common | 26.25" | -0.22% | +20 mm | 59.9 mph | compare → |
| 255/40R17 common | 25.03" | -4.86% | +40 mm | 57.1 mph | compare → |
| 205/55R17 | 25.88" | -1.65% | -10 mm | 59.0 mph | compare → |
| 275/40R17 | 25.66" | -2.47% | +60 mm | 58.5 mph | compare → |
| 245/50R17 | 26.65" | +1.27% | +30 mm | 60.8 mph | compare → |
| 255/45R17 | 26.04" | -1.05% | +40 mm | 59.4 mph | compare → |
| 315/35R17 | 25.68" | -2.39% | +100 mm | 58.6 mph | compare → |
| 245/55R17 | 27.61" | +4.94% | +30 mm | 63.0 mph | calculate → |
| 335/35R17 | 26.23" | -0.30% | +120 mm | 59.8 mph | calculate → |
| 195/60R17 | 26.21" | -0.37% | -20 mm | 59.8 mph | calculate → |
| 285/40R17 | 25.98" | -1.27% | +70 mm | 59.2 mph | calculate → |
| 255/50R17 | 27.04" | +2.77% | +40 mm | 61.7 mph | calculate → |
| 155/70R17 | 25.54" | -2.92% | -60 mm | 58.2 mph | calculate → |
| 265/40R17 | 25.35" | -3.67% | +50 mm | 57.8 mph | calculate → |
| 165/80R17 | 27.39" | +4.11% | -50 mm | 62.5 mph | calculate → |
| 145/80R17 | 26.13" | -0.67% | -70 mm | 59.6 mph | calculate → |
| 175/65R17 | 25.96" | -1.35% | -40 mm | 59.2 mph | calculate → |
| 155/80R17 | 26.76" | +1.72% | -60 mm | 61.0 mph | calculate → |
| 295/35R17 | 25.13" | -4.49% | +80 mm | 57.3 mph | calculate → |
| 26x6.00R17 | 26.00" | -1.18% | -63 mm | 59.3 mph | calculate → |
| 185/60R17 | 25.74" | -2.17% | -30 mm | 58.7 mph | calculate → |
| 145/90R17 | 27.28" | +3.67% | -70 mm | 62.2 mph | calculate → |
| 295/40R17 | 26.29" | -0.07% | +80 mm | 60.0 mph | calculate → |
| 165/70R17 | 26.09" | -0.82% | -50 mm | 59.5 mph | calculate → |
| 205/60R17 | 26.69" | +1.42% | -10 mm | 60.9 mph | calculate → |
| 205/65R17 | 27.49" | +4.49% | -10 mm | 62.7 mph | calculate → |
Plus / minus sizing: 16" and 18" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 235/45R18 common | 26.33" | +0.06% | +20 mm | 60.0 mph | compare → |
| 215/60R16 common | 26.16" | -0.58% | 0 mm | 59.6 mph | compare → |
| 205/65R16 common | 26.49" | +0.69% | -10 mm | 60.4 mph | compare → |
| 265/40R18 | 26.35" | +0.13% | +50 mm | 60.1 mph | compare → |
| 295/35R18 | 26.13" | -0.69% | +80 mm | 59.6 mph | compare → |
| 215/50R18 | 26.46" | +0.58% | 0 mm | 60.4 mph | compare → |
| 305/35R18 | 26.41" | +0.36% | +90 mm | 60.2 mph | calculate → |
| 145/90R16 | 26.28" | -0.13% | -70 mm | 59.9 mph | calculate → |
| 235/55R16 | 26.18" | -0.51% | +20 mm | 59.7 mph | calculate → |
| 155/70R18 | 26.54" | +0.88% | -60 mm | 60.5 mph | calculate → |
| 345/30R18 | 26.15" | -0.61% | +130 mm | 59.6 mph | calculate → |
Try another size against 215/55R17
Questions
What size is 215/55R17 in inches?
215/55R17 is about 26.3" tall and 8.5" wide on a 17-inch rim — roughly a 26.5x8.50R17 in inch sizing.
What does 215/55R17 mean?
215 mm section width, sidewall 55% of the width (4.66"), radial construction, 17-inch rim.
What tire sizes are equivalent to 215/55R17?
On the same 17" rim, within 3% of the diameter: 295/40R17 (-0.07%), 235/50R17 (-0.22%), 335/35R17 (-0.30%), 195/60R17 (-0.37%), 145/80R17 (-0.67%), 165/70R17 (-0.82%).
How many revolutions per mile does a 215/55R17 tire make?
About 767 revolutions per mile (circumference 82.7").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.