205/55R16 tire size
205/55R16 is a metric size: 24.9" tall, 8.1" wide, on a 16" rim — about a 25x8.00R16. The sidewall is 4.4" and the tire turns 811 times per mile.
205/55R16 specs
| Overall diameter (height) | 24.88" · 632 mm |
|---|---|
| Section width | 8.07" · 205 mm |
| Sidewall height | 4.44" · 113 mm (55% of width) |
| Rim diameter | 16" |
| Circumference | 78.16" · 1.985 m |
| Revolutions per mile | 811 (504 per km) |
| Inch (flotation) equivalent | 25x8.00R16 |
Equivalent sizes on a 16" 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 | |
|---|---|---|---|---|---|
| 215/55R16 common | 25.31" | +1.74% | +10 mm | 61.0 mph | compare → |
| 205/60R16 common | 25.69" | +3.24% | 0 mm | 61.9 mph | compare → |
| 195/55R16 common | 24.44" | -1.74% | -10 mm | 59.0 mph | compare → |
| 225/50R16 common | 24.86" | -0.08% | +20 mm | 60.0 mph | compare → |
| 205/50R16 | 24.07" | -3.24% | 0 mm | 58.1 mph | compare → |
| 225/55R16 | 25.74" | +3.48% | +20 mm | 62.1 mph | compare → |
| 195/50R16 | 23.68" | -4.83% | -10 mm | 57.1 mph | compare → |
| 185/55R16 | 24.01" | -3.48% | -20 mm | 57.9 mph | compare → |
| 245/45R16 | 24.68" | -0.79% | +40 mm | 59.5 mph | compare → |
| 245/50R16 | 25.65" | +3.09% | +40 mm | 61.9 mph | compare → |
| 195/60R16 | 25.21" | +1.35% | -10 mm | 60.8 mph | calculate → |
| 185/60R16 | 24.74" | -0.55% | -20 mm | 59.7 mph | calculate → |
| 225/45R16 | 23.97" | -3.64% | +20 mm | 57.8 mph | calculate → |
| 255/50R16 | 26.04" | +4.67% | +50 mm | 62.8 mph | calculate → |
| 275/45R16 | 25.74" | +3.48% | +70 mm | 62.1 mph | calculate → |
| 195/65R16 | 25.98" | +4.43% | -10 mm | 62.7 mph | calculate → |
| 175/60R16 | 24.27" | -2.45% | -30 mm | 58.5 mph | calculate → |
| 145/80R16 | 25.13" | +1.03% | -60 mm | 60.6 mph | calculate → |
| 215/50R16 | 24.46" | -1.66% | +10 mm | 59.0 mph | calculate → |
| 265/45R16 | 25.39" | +2.06% | +60 mm | 61.2 mph | calculate → |
| 315/40R16 | 25.92" | +4.19% | +110 mm | 62.5 mph | calculate → |
| 26x11.50R16 | 26.00" | +4.51% | +87 mm | 62.7 mph | calculate → |
Plus / minus sizing: 15" and 17" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 225/45R17 common | 24.97" | +0.38% | +20 mm | 60.2 mph | compare → |
| 205/50R17 common | 25.07" | +0.78% | 0 mm | 60.5 mph | compare → |
| 195/65R15 common | 24.98" | +0.41% | -10 mm | 60.2 mph | compare → |
| 245/40R17 common | 24.72" | -0.65% | +40 mm | 59.6 mph | compare → |
| 255/40R17 common | 25.03" | +0.62% | +50 mm | 60.4 mph | compare → |
| 205/60R15 | 24.69" | -0.78% | 0 mm | 59.5 mph | compare → |
| 245/50R15 | 24.65" | -0.93% | +40 mm | 59.4 mph | calculate → |
| 155/80R15 | 24.76" | -0.46% | -50 mm | 59.7 mph | calculate → |
| 145/70R17 | 24.99" | +0.46% | -60 mm | 60.3 mph | calculate → |
| 225/55R15 | 24.74" | -0.54% | +20 mm | 59.7 mph | calculate → |
| 175/70R15 | 24.65" | -0.93% | -30 mm | 59.4 mph | calculate → |
Try another size against 205/55R16
Questions
What size is 205/55R16 in inches?
205/55R16 is about 24.9" tall and 8.1" wide on a 16-inch rim — roughly a 25x8.00R16 in inch sizing.
What does 205/55R16 mean?
205 mm section width, sidewall 55% of the width (4.44"), radial construction, 16-inch rim.
What tire sizes are equivalent to 205/55R16?
On the same 16" rim, within 3% of the diameter: 225/50R16 (-0.08%), 185/60R16 (-0.55%), 245/45R16 (-0.79%), 145/80R16 (+1.03%), 195/60R16 (+1.35%), 215/50R16 (-1.66%).
How many revolutions per mile does a 205/55R16 tire make?
About 811 revolutions per mile (circumference 78.2").
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.