205/50R17 tire size
205/50R17 is a metric size: 25.1" tall, 8.1" wide, on a 17" rim — about a 25x8.00R17. The sidewall is 4.0" and the tire turns 804 times per mile.
205/50R17 specs
| Overall diameter (height) | 25.07" · 637 mm |
|---|---|
| Section width | 8.07" · 205 mm |
| Sidewall height | 4.04" · 102 mm (50% of width) |
| Rim diameter | 17" |
| Circumference | 78.76" · 2.001 m |
| Revolutions per mile | 804 (500 per km) |
| Inch (flotation) equivalent | 25x8.00R17 |
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 | |
|---|---|---|---|---|---|
| 225/45R17 common | 24.97" | -0.39% | +20 mm | 59.8 mph | compare → |
| 225/50R17 common | 25.86" | +3.14% | +20 mm | 61.9 mph | compare → |
| 215/45R17 common | 24.62" | -1.81% | +10 mm | 58.9 mph | compare → |
| 215/55R17 common | 26.31" | +4.95% | +10 mm | 63.0 mph | compare → |
| 215/50R17 common | 25.46" | +1.57% | +10 mm | 60.9 mph | compare → |
| 235/45R17 common | 25.33" | +1.02% | +30 mm | 60.6 mph | compare → |
| 245/45R17 common | 25.68" | +2.43% | +40 mm | 61.5 mph | compare → |
| 245/40R17 common | 24.72" | -1.41% | +40 mm | 59.2 mph | compare → |
| 205/45R17 common | 24.26" | -3.22% | 0 mm | 58.1 mph | compare → |
| 235/50R17 common | 26.25" | +4.71% | +30 mm | 62.8 mph | compare → |
| 255/40R17 common | 25.03" | -0.16% | +50 mm | 59.9 mph | compare → |
| 205/55R17 | 25.88" | +3.22% | 0 mm | 61.9 mph | compare → |
| 275/40R17 | 25.66" | +2.36% | +70 mm | 61.4 mph | compare → |
| 235/40R17 | 24.40" | -2.67% | +30 mm | 58.4 mph | compare → |
| 255/45R17 | 26.04" | +3.85% | +50 mm | 62.3 mph | compare → |
| 315/35R17 | 25.68" | +2.43% | +110 mm | 61.5 mph | compare → |
| 275/35R17 | 24.58" | -1.96% | +70 mm | 58.8 mph | calculate → |
| 335/35R17 | 26.23" | +4.63% | +130 mm | 62.8 mph | calculate → |
| 265/40R17 | 25.35" | +1.10% | +60 mm | 60.7 mph | calculate → |
| 155/70R17 | 25.54" | +1.88% | -50 mm | 61.1 mph | calculate → |
| 285/40R17 | 25.98" | +3.61% | +80 mm | 62.2 mph | calculate → |
| 225/40R17 | 24.09" | -3.93% | +20 mm | 57.6 mph | calculate → |
| 195/60R17 | 26.21" | +4.55% | -10 mm | 62.7 mph | calculate → |
| 295/35R17 | 25.13" | +0.24% | +90 mm | 60.1 mph | calculate → |
| 175/65R17 | 25.96" | +3.53% | -30 mm | 62.1 mph | calculate → |
| 145/80R17 | 26.13" | +4.24% | -60 mm | 62.5 mph | calculate → |
| 195/45R17 | 23.91" | -4.63% | -10 mm | 57.2 mph | calculate → |
| 145/70R17 | 24.99" | -0.31% | -60 mm | 59.8 mph | calculate → |
| 185/60R17 | 25.74" | +2.67% | -20 mm | 61.6 mph | calculate → |
| 26x6.00R17 | 26.00" | +3.71% | -53 mm | 62.2 mph | calculate → |
| 165/70R17 | 26.09" | +4.08% | -40 mm | 62.4 mph | calculate → |
| 295/40R17 | 26.29" | +4.87% | +90 mm | 62.9 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 | |
|---|---|---|---|---|---|
| 225/40R18 common | 25.09" | +0.06% | +20 mm | 60.0 mph | compare → |
| 205/55R16 common | 24.88" | -0.77% | 0 mm | 59.5 mph | compare → |
| 215/55R16 common | 25.31" | +0.96% | +10 mm | 60.6 mph | compare → |
| 255/35R18 common | 25.03" | -0.17% | +50 mm | 59.9 mph | compare → |
| 265/35R18 common | 25.30" | +0.93% | +60 mm | 60.6 mph | compare → |
| 225/50R16 common | 24.86" | -0.85% | +20 mm | 59.5 mph | compare → |
| 295/30R18 | 24.97" | -0.41% | +90 mm | 59.8 mph | compare → |
| 195/60R16 | 25.21" | +0.57% | -10 mm | 60.3 mph | calculate → |
| 305/30R18 | 25.20" | +0.53% | +100 mm | 60.3 mph | calculate → |
| 145/80R16 | 25.13" | +0.25% | -60 mm | 60.2 mph | calculate → |
| 205/45R18 | 25.26" | +0.77% | 0 mm | 60.5 mph | calculate → |
Try another size against 205/50R17
Questions
What size is 205/50R17 in inches?
205/50R17 is about 25.1" tall and 8.1" wide on a 17-inch rim — roughly a 25x8.00R17 in inch sizing.
What does 205/50R17 mean?
205 mm section width, sidewall 50% of the width (4.04"), radial construction, 17-inch rim.
What tire sizes are equivalent to 205/50R17?
On the same 17" rim, within 3% of the diameter: 255/40R17 (-0.16%), 295/35R17 (+0.24%), 145/70R17 (-0.31%), 225/45R17 (-0.39%), 235/45R17 (+1.02%), 265/40R17 (+1.10%).
How many revolutions per mile does a 205/50R17 tire make?
About 804 revolutions per mile (circumference 78.8").
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.