255/65R16 tire size
255/65R16 is a metric size: 29.1" tall, 10.0" wide, on a 16" rim — about a 29x10.00R16. The sidewall is 6.5" and the tire turns 694 times per mile.
255/65R16 specs
| Overall diameter (height) | 29.05" · 738 mm |
|---|---|
| Section width | 10.04" · 255 mm |
| Sidewall height | 6.53" · 166 mm (65% of width) |
| Rim diameter | 16" |
| Circumference | 91.27" · 2.318 m |
| Revolutions per mile | 694 (431 per km) |
| Inch (flotation) equivalent | 29x10.00R16 |
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 | |
|---|---|---|---|---|---|
| 245/75R16 common | 30.47" | +4.88% | -10 mm | 62.9 mph | compare → |
| 225/75R16 common | 29.29" | +0.81% | -30 mm | 60.5 mph | compare → |
| 235/70R16 common | 28.95" | -0.34% | -20 mm | 59.8 mph | compare → |
| 215/70R16 common | 27.85" | -4.13% | -40 mm | 57.5 mph | compare → |
| 235/65R16 common | 28.03" | -3.52% | -20 mm | 57.9 mph | compare → |
| 245/70R16 common | 29.50" | +1.56% | -10 mm | 60.9 mph | compare → |
| 225/70R16 common | 28.40" | -2.24% | -30 mm | 58.7 mph | compare → |
| 255/70R16 common | 30.06" | +3.46% | 0 mm | 62.1 mph | compare → |
| 215/85R16 common | 30.39" | +4.61% | -40 mm | 62.8 mph | compare → |
| 235/75R16 | 29.88" | +2.85% | -20 mm | 61.7 mph | compare → |
| 205/75R16 | 28.11" | -3.25% | -50 mm | 58.0 mph | calculate → |
| 215/75R16 | 28.70" | -1.22% | -40 mm | 59.3 mph | calculate → |
| 205/80R16 | 28.91" | -0.47% | -50 mm | 59.7 mph | calculate → |
| 285/60R16 | 29.46" | +1.42% | +30 mm | 60.9 mph | calculate → |
| 30x11.50R16 | 30.00" | +3.27% | +37 mm | 62.0 mph | calculate → |
| 275/60R16 | 28.99" | -0.20% | +20 mm | 59.9 mph | calculate → |
| 285/55R16 | 28.34" | -2.44% | +30 mm | 58.5 mph | calculate → |
| 195/80R16 | 28.28" | -2.64% | -60 mm | 58.4 mph | calculate → |
| 255/60R16 | 28.05" | -3.46% | 0 mm | 57.9 mph | calculate → |
| 28x11.50R16 | 28.00" | -3.62% | +37 mm | 57.8 mph | calculate → |
| 295/50R16 | 27.61" | -4.95% | +40 mm | 57.0 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 | |
|---|---|---|---|---|---|
| 235/65R17 common | 29.03" | -0.08% | -20 mm | 60.0 mph | compare → |
| 235/75R15 common | 28.88" | -0.60% | -20 mm | 59.6 mph | compare → |
| 255/60R17 | 29.05" | -0.01% | 0 mm | 60.0 mph | compare → |
| 275/55R17 | 28.91" | -0.49% | +20 mm | 59.7 mph | compare → |
| 255/70R15 | 29.06" | +0.01% | 0 mm | 60.0 mph | calculate → |
| 215/70R17 | 28.85" | -0.69% | -40 mm | 59.6 mph | calculate → |
| 29x10.50R15 | 29.00" | -0.18% | +12 mm | 59.9 mph | calculate → |
| 29x11.50R15 | 29.00" | -0.18% | +37 mm | 59.9 mph | calculate → |
| 29x15.00R15 | 29.00" | -0.18% | +126 mm | 59.9 mph | calculate → |
| 29x18.00R15 | 29.00" | -0.18% | +202 mm | 59.9 mph | calculate → |
| 29x8.50R15 | 29.00" | -0.18% | -39 mm | 59.9 mph | calculate → |
| 29x12.50R15 | 29.00" | -0.18% | +63 mm | 59.9 mph | calculate → |
| 29x15.50R15 | 29.00" | -0.18% | +139 mm | 59.9 mph | calculate → |
| 29x18.50R15 | 29.00" | -0.18% | +215 mm | 59.9 mph | calculate → |
Try another size against 255/65R16
Questions
What size is 255/65R16 in inches?
255/65R16 is about 29.1" tall and 10.0" wide on a 16-inch rim — roughly a 29x10.00R16 in inch sizing.
What does 255/65R16 mean?
255 mm section width, sidewall 65% of the width (6.53"), radial construction, 16-inch rim.
What tire sizes are equivalent to 255/65R16?
On the same 16" rim, within 3% of the diameter: 275/60R16 (-0.20%), 235/70R16 (-0.34%), 205/80R16 (-0.47%), 225/75R16 (+0.81%), 215/75R16 (-1.22%), 285/60R16 (+1.42%).
How many revolutions per mile does a 255/65R16 tire make?
About 694 revolutions per mile (circumference 91.3").
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.