265/35R18 tire size
265/35R18 is a metric size: 25.3" tall, 10.4" wide, on a 18" rim — about a 25.5x10.50R18. The sidewall is 3.7" and the tire turns 797 times per mile.
265/35R18 specs
| Overall diameter (height) | 25.30" · 643 mm |
|---|---|
| Section width | 10.43" · 265 mm |
| Sidewall height | 3.65" · 93 mm (35% of width) |
| Rim diameter | 18" |
| Circumference | 79.49" · 2.019 m |
| Revolutions per mile | 797 (495 per km) |
| Inch (flotation) equivalent | 25.5x10.50R18 |
Equivalent sizes on a 18" 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 | |
|---|---|---|---|---|---|
| 245/40R18 common | 25.72" | +1.63% | -20 mm | 61.0 mph | compare → |
| 225/45R18 common | 25.97" | +2.65% | -40 mm | 61.6 mph | compare → |
| 225/40R18 common | 25.09" | -0.86% | -40 mm | 59.5 mph | compare → |
| 235/45R18 common | 26.33" | +4.05% | -30 mm | 62.4 mph | compare → |
| 235/40R18 common | 25.40" | +0.39% | -30 mm | 60.2 mph | compare → |
| 255/35R18 common | 25.03" | -1.09% | -10 mm | 59.3 mph | compare → |
| 255/40R18 common | 26.03" | +2.88% | -10 mm | 61.7 mph | compare → |
| 275/35R18 common | 25.58" | +1.09% | +10 mm | 60.7 mph | compare → |
| 215/45R18 common | 25.62" | +1.24% | -50 mm | 60.7 mph | compare → |
| 245/35R18 common | 24.75" | -2.18% | -20 mm | 58.7 mph | compare → |
| 215/40R18 | 24.77" | -2.10% | -50 mm | 58.7 mph | compare → |
| 285/35R18 | 25.85" | +2.18% | +20 mm | 61.3 mph | compare → |
| 265/40R18 | 26.35" | +4.12% | 0 mm | 62.5 mph | compare → |
| 295/30R18 | 24.97" | -1.32% | +30 mm | 59.2 mph | compare → |
| 315/30R18 | 25.44" | +0.54% | +50 mm | 60.3 mph | compare → |
| 285/30R18 | 24.73" | -2.26% | +20 mm | 58.6 mph | compare → |
| 295/35R18 | 26.13" | +3.27% | +30 mm | 62.0 mph | compare → |
| 205/40R18 | 24.46" | -3.35% | -60 mm | 58.0 mph | compare → |
| 335/30R18 | 25.91" | +2.41% | +70 mm | 61.4 mph | compare → |
| 215/50R18 | 26.46" | +4.59% | -50 mm | 62.8 mph | compare → |
| 225/35R18 | 24.20" | -4.36% | -40 mm | 57.4 mph | calculate → |
| 305/35R18 | 26.41" | +4.36% | +40 mm | 62.6 mph | calculate → |
| 235/35R18 | 24.48" | -3.27% | -30 mm | 58.0 mph | calculate → |
| 155/60R18 | 25.32" | +0.08% | -110 mm | 60.0 mph | calculate → |
| 305/30R18 | 25.20" | -0.39% | +40 mm | 59.8 mph | calculate → |
| 145/70R18 | 25.99" | +2.72% | -120 mm | 61.6 mph | calculate → |
| 26x12.00R18 | 26.00" | +2.75% | +40 mm | 61.7 mph | calculate → |
| 26x6.00R18 | 26.00" | +2.75% | -113 mm | 61.7 mph | calculate → |
| 26x8.00R18 | 26.00" | +2.75% | -62 mm | 61.7 mph | calculate → |
| 155/70R18 | 26.54" | +4.90% | -110 mm | 62.9 mph | calculate → |
| 205/45R18 | 25.26" | -0.16% | -60 mm | 59.9 mph | calculate → |
| 345/30R18 | 26.15" | +3.35% | +80 mm | 62.0 mph | calculate → |
Plus / minus sizing: 17" and 19" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 205/50R17 common | 25.07" | -0.92% | -60 mm | 59.4 mph | compare → |
| 215/50R17 common | 25.46" | +0.64% | -50 mm | 60.4 mph | compare → |
| 235/45R17 common | 25.33" | +0.09% | -30 mm | 60.1 mph | compare → |
| 235/35R19 common | 25.48" | +0.68% | -30 mm | 60.4 mph | compare → |
| 225/35R19 | 25.20" | -0.40% | -40 mm | 59.8 mph | compare → |
| 275/30R19 | 25.50" | +0.76% | +10 mm | 60.5 mph | compare → |
| 265/30R19 | 25.26" | -0.17% | 0 mm | 59.9 mph | compare → |
| 265/40R17 | 25.35" | +0.17% | 0 mm | 60.1 mph | calculate → |
| 155/70R17 | 25.54" | +0.95% | -110 mm | 60.6 mph | calculate → |
| 315/25R19 | 25.20" | -0.40% | +50 mm | 59.8 mph | calculate → |
| 295/35R17 | 25.13" | -0.68% | +30 mm | 59.6 mph | calculate → |
Try another size against 265/35R18
Questions
What size is 265/35R18 in inches?
265/35R18 is about 25.3" tall and 10.4" wide on a 18-inch rim — roughly a 25.5x10.50R18 in inch sizing.
What does 265/35R18 mean?
265 mm section width, sidewall 35% of the width (3.65"), radial construction, 18-inch rim.
What tire sizes are equivalent to 265/35R18?
On the same 18" rim, within 3% of the diameter: 155/60R18 (+0.08%), 205/45R18 (-0.16%), 235/40R18 (+0.39%), 305/30R18 (-0.39%), 315/30R18 (+0.54%), 225/40R18 (-0.86%).
How many revolutions per mile does a 265/35R18 tire make?
About 797 revolutions per mile (circumference 79.5").
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.