245/65R17 tire size
245/65R17 is a metric size: 29.5" tall, 9.6" wide, on a 17" rim — about a 29.5x9.50R17. The sidewall is 6.3" and the tire turns 683 times per mile.
245/65R17 specs
| Overall diameter (height) | 29.54" · 750 mm |
|---|---|
| Section width | 9.65" · 245 mm |
| Sidewall height | 6.27" · 159 mm (65% of width) |
| Rim diameter | 17" |
| Circumference | 92.80" · 2.357 m |
| Revolutions per mile | 683 (424 per km) |
| Inch (flotation) equivalent | 29.5x9.50R17 |
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 | |
|---|---|---|---|---|---|
| 225/65R17 common | 28.52" | -3.47% | -20 mm | 57.9 mph | compare → |
| 235/65R17 common | 29.03" | -1.73% | -10 mm | 59.0 mph | compare → |
| 245/70R17 common | 30.50" | +3.27% | 0 mm | 62.0 mph | compare → |
| 265/65R17 common | 30.56" | +3.47% | +20 mm | 62.1 mph | compare → |
| 235/60R17 common | 28.10" | -4.86% | -10 mm | 57.1 mph | compare → |
| 255/65R17 common | 30.05" | +1.73% | +10 mm | 61.0 mph | compare → |
| 235/75R17 | 30.88" | +4.53% | -10 mm | 62.7 mph | compare → |
| 235/70R17 | 29.95" | +1.40% | -10 mm | 60.8 mph | compare → |
| 255/60R17 | 29.05" | -1.67% | +10 mm | 59.0 mph | compare → |
| 225/75R17 | 30.29" | +2.53% | -20 mm | 61.5 mph | compare → |
| 275/55R17 | 28.91" | -2.13% | +30 mm | 58.7 mph | compare → |
| 275/60R17 | 29.99" | +1.53% | +30 mm | 60.9 mph | calculate → |
| 265/60R17 | 29.52" | -0.07% | +20 mm | 60.0 mph | calculate → |
| 215/70R17 | 28.85" | -2.33% | -30 mm | 58.6 mph | calculate → |
| 165/90R17 | 28.69" | -2.87% | -80 mm | 58.3 mph | calculate → |
| 175/90R17 | 29.40" | -0.47% | -70 mm | 59.7 mph | calculate → |
| 315/55R17 | 30.64" | +3.73% | +70 mm | 62.2 mph | calculate → |
| 31x10.50R17 | 31.00" | +4.94% | +22 mm | 63.0 mph | calculate → |
| 225/70R17 | 29.40" | -0.47% | -20 mm | 59.7 mph | calculate → |
| 285/60R17 | 30.46" | +3.13% | +40 mm | 61.9 mph | calculate → |
| 245/60R17 | 28.57" | -3.27% | 0 mm | 58.0 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 | |
|---|---|---|---|---|---|
| 245/60R18 common | 29.57" | +0.12% | 0 mm | 60.1 mph | compare → |
| 225/75R16 common | 29.29" | -0.85% | -20 mm | 59.5 mph | compare → |
| 245/70R16 common | 29.50" | -0.12% | 0 mm | 59.9 mph | compare → |
| 165/90R18 | 29.69" | +0.52% | -80 mm | 60.3 mph | calculate → |
| 325/45R18 | 29.52" | -0.08% | +80 mm | 60.0 mph | calculate → |
| 285/60R16 | 29.46" | -0.25% | +40 mm | 59.8 mph | calculate → |
| 225/65R18 | 29.52" | -0.08% | -20 mm | 60.0 mph | calculate → |
| 265/55R18 | 29.48" | -0.21% | +20 mm | 59.9 mph | calculate → |
Try another size against 245/65R17
Questions
What size is 245/65R17 in inches?
245/65R17 is about 29.5" tall and 9.6" wide on a 17-inch rim — roughly a 29.5x9.50R17 in inch sizing.
What does 245/65R17 mean?
245 mm section width, sidewall 65% of the width (6.27"), radial construction, 17-inch rim.
What tire sizes are equivalent to 245/65R17?
On the same 17" rim, within 3% of the diameter: 265/60R17 (-0.07%), 175/90R17 (-0.47%), 225/70R17 (-0.47%), 235/70R17 (+1.40%), 275/60R17 (+1.53%), 255/60R17 (-1.67%).
How many revolutions per mile does a 245/65R17 tire make?
About 683 revolutions per mile (circumference 92.8").
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.