205/65R15 tire size
205/65R15 is a metric size: 25.5" tall, 8.1" wide, on a 15" rim — about a 25.5x8.00R15. The sidewall is 5.2" and the tire turns 791 times per mile.
205/65R15 specs
| Overall diameter (height) | 25.49" · 648 mm |
|---|---|
| Section width | 8.07" · 205 mm |
| Sidewall height | 5.25" · 133 mm (65% of width) |
| Rim diameter | 15" |
| Circumference | 80.09" · 2.034 m |
| Revolutions per mile | 791 (492 per km) |
| Inch (flotation) equivalent | 25.5x8.00R15 |
Equivalent sizes on a 15" 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 | |
|---|---|---|---|---|---|
| 195/65R15 common | 24.98" | -2.01% | -10 mm | 58.8 mph | compare → |
| 185/65R15 common | 24.47" | -4.02% | -20 mm | 57.6 mph | compare → |
| 205/70R15 | 26.30" | +3.17% | 0 mm | 61.9 mph | compare → |
| 205/60R15 | 24.69" | -3.17% | 0 mm | 58.1 mph | compare → |
| 215/65R15 | 26.00" | +2.01% | +10 mm | 61.2 mph | compare → |
| 215/60R15 | 25.16" | -1.31% | +10 mm | 59.2 mph | compare → |
| 235/60R15 | 26.10" | +2.39% | +30 mm | 61.4 mph | calculate → |
| 195/70R15 | 25.75" | +1.00% | -10 mm | 60.6 mph | calculate → |
| 275/50R15 | 25.83" | +1.31% | +70 mm | 60.8 mph | calculate → |
| 225/60R15 | 25.63" | +0.54% | +20 mm | 60.3 mph | calculate → |
| 245/60R15 | 26.57" | +4.25% | +40 mm | 62.5 mph | calculate → |
| 295/50R15 | 26.61" | +4.40% | +90 mm | 62.6 mph | calculate → |
| 26x10.00R15 | 26.00" | +1.99% | +49 mm | 61.2 mph | calculate → |
| 26x8.50R15 | 26.00" | +1.99% | +11 mm | 61.2 mph | calculate → |
| 245/50R15 | 24.65" | -3.32% | +40 mm | 58.0 mph | calculate → |
| 345/35R15 | 24.51" | -3.86% | +140 mm | 57.7 mph | calculate → |
| 265/50R15 | 25.43" | -0.23% | +60 mm | 59.9 mph | calculate → |
| 185/70R15 | 25.20" | -1.16% | -20 mm | 59.3 mph | calculate → |
| 26x10.50R15 | 26.00" | +1.99% | +62 mm | 61.2 mph | calculate → |
| 26x12.00R15 | 26.00" | +1.99% | +100 mm | 61.2 mph | calculate → |
| 26x6.00R15 | 26.00" | +1.99% | -53 mm | 61.2 mph | calculate → |
| 26x7.50R15 | 26.00" | +1.99% | -14 mm | 61.2 mph | calculate → |
| 26x8.00R15 | 26.00" | +1.99% | -2 mm | 61.2 mph | calculate → |
| 155/80R15 | 24.76" | -2.86% | -50 mm | 58.3 mph | calculate → |
| 24.5x8.00R15 | 24.50" | -3.89% | -2 mm | 57.7 mph | calculate → |
| 235/50R15 | 24.25" | -4.86% | +30 mm | 57.1 mph | calculate → |
| 165/80R15 | 25.39" | -0.39% | -40 mm | 59.8 mph | calculate → |
| 165R15 | 25.65" | +0.63% | -40 mm | 60.4 mph | calculate → |
| 26x11.50R15 | 26.00" | +1.99% | +87 mm | 61.2 mph | calculate → |
| 225/55R15 | 24.74" | -2.93% | +20 mm | 58.2 mph | calculate → |
| 175/70R15 | 24.65" | -3.32% | -30 mm | 58.0 mph | calculate → |
Plus / minus sizing: 14" and 16" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 215/55R16 common | 25.31" | -0.71% | +10 mm | 59.6 mph | compare → |
| 205/60R16 common | 25.69" | +0.76% | 0 mm | 60.5 mph | compare → |
| 225/55R16 | 25.74" | +0.99% | +20 mm | 60.6 mph | compare → |
| 245/50R16 | 25.65" | +0.60% | +40 mm | 60.4 mph | compare → |
| 195/75R14 | 25.52" | +0.09% | -10 mm | 60.1 mph | calculate → |
| 205/70R14 | 25.30" | -0.76% | 0 mm | 59.5 mph | calculate → |
| 275/45R16 | 25.74" | +0.99% | +70 mm | 60.6 mph | calculate → |
| 245/60R14 | 25.57" | +0.32% | +40 mm | 60.2 mph | calculate → |
| 265/45R16 | 25.39" | -0.40% | +60 mm | 59.8 mph | calculate → |
| 175R14 | 25.30" | -0.76% | -30 mm | 59.5 mph | calculate → |
Try another size against 205/65R15
Questions
What size is 205/65R15 in inches?
205/65R15 is about 25.5" tall and 8.1" wide on a 15-inch rim — roughly a 25.5x8.00R15 in inch sizing.
What does 205/65R15 mean?
205 mm section width, sidewall 65% of the width (5.25"), radial construction, 15-inch rim.
What tire sizes are equivalent to 205/65R15?
On the same 15" rim, within 3% of the diameter: 265/50R15 (-0.23%), 165/80R15 (-0.39%), 225/60R15 (+0.54%), 165R15 (+0.63%), 195/70R15 (+1.00%), 185/70R15 (-1.16%).
How many revolutions per mile does a 205/65R15 tire make?
About 791 revolutions per mile (circumference 80.1").
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.