TireSizeCheck

265/60R18

A 265/60R18 tire is 30.52 inches tall and 10.4 inches wide, with a 6.26-inch sidewall, mounted on a 18-inch wheel.

Common fitments: Tacoma, Silverado, Pathfinder

Overall diameter

30.52″

775 mm

Sidewall height

6.26″

159.0 mm

Tread width

265 mm

10.4″

Circumference

95.88″

8.0 ft

Revs per mile

661

411 per km

Wheel diameter

18″

aspect ratio 60%

Cross-section

Overall diameter
30.52″
Sidewall (each side)
6.26″
Wheel
18″

265/60R18 in inches and millimeters

Every dimension of a 265/60R18, converted both ways. Calculated from the size code, accurate to about 1%.

Measurement Inches Millimeters
Overall diameter (height) 30.52″ 775 mm
Tread width 10.4″ 265 mm
Sidewall height 6.26″ 159.0 mm
Wheel diameter 18″ 457 mm
Circumference 95.88″ 2435 mm

Nominal dimensions from the size code. A real tire varies by a few millimeters between manufacturers, and a loaded tire sits slightly shorter than its free diameter.

265/60R18 compared with other sizes

All 35 practical swaps involving 265/60R18 — diameter change, speedometer impact and a fit verdict for each.

265/60R18 → 245/75R16

245/75R16

Diameter +0.2% · This fits

265/60R18 → 265/70R16

265/70R16

Diameter −0.3% · This fits

265/60R18 → 235/60R18

235/60R18

Diameter +4.9% · Borderline. Check clearance first

265/60R18 → 255/55R18

255/55R18

Diameter +5.1% · Too big a jump

245/65R18 → 265/60R18

245/65R18

Diameter +0.1% · This fits

275/60R18 → 265/60R18

275/60R18

Diameter +1.5% · This fits

255/60R18 → 265/60R18

255/60R18

Diameter −1.5% · This fits

235/65R18 → 265/60R18

235/65R18

Diameter −1.6% · This fits

255/65R18 → 265/60R18

255/65R18

Diameter +1.7% · This fits

265/65R18 → 265/60R18

265/65R18

Diameter +3.4% · Borderline. Check clearance first

285/60R18 → 265/60R18

285/60R18

Diameter +3.1% · Borderline. Check clearance first

245/60R18 → 265/60R18

245/60R18

Diameter −3.1% · Borderline. Check clearance first

265/65R17 → 265/60R18

265/65R17

Diameter +0.1% · This fits

265/55R19 → 265/60R18

265/55R19

Diameter −0.1% · This fits

265/70R16 → 265/60R18

265/70R16

Diameter +0.3% · This fits

265/50R20 → 265/60R18

265/50R20

Diameter −0.3% · This fits

235/60R18 → 265/60R18

235/60R18

Diameter −4.6% · Borderline. Check clearance first

255/55R18 → 265/60R18

255/55R18

Diameter −4.8% · Borderline. Check clearance first

265/60R18 → 255/70R16

255/70R16

Diameter +1.5% · This fits

265/60R18 → 245/70R17

245/70R17

Diameter +0.1% · This fits

265/60R18 → 265/65R17

265/65R17

Diameter −0.1% · This fits

265/60R18 → 235/65R18

235/65R18

Diameter +1.6% · This fits

265/60R18 → 245/60R18

245/60R18

Diameter +3.2% · Borderline. Check clearance first

265/60R18 → 245/65R18

245/65R18

Diameter −0.1% · This fits

265/60R18 → 255/60R18

255/60R18

Diameter +1.6% · This fits

265/60R18 → 255/65R18

255/65R18

Diameter −1.7% · This fits

265/60R18 → 255/70R18

255/70R18

Diameter −4.8% · Borderline. Check clearance first

265/60R18 → 265/65R18

265/65R18

Diameter −3.3% · Borderline. Check clearance first

265/60R18 → 275/60R18

275/60R18

Diameter −1.5% · This fits

265/60R18 → 275/65R18

275/65R18

Diameter −4.8% · Borderline. Check clearance first

265/60R18 → 285/60R18

285/60R18

Diameter −3.0% · Borderline. Check clearance first

265/60R18 → 265/55R19

265/55R19

Diameter +0.1% · This fits

265/60R18 → 265/50R20

265/50R20

Diameter +0.3% · This fits

265/60R18 → 235/45R18

235/45R18

Diameter +15.9% · Too big a jump

275/55R20 → 265/60R18

275/55R20

Diameter +4.6% · Borderline. Check clearance first

Common questions

What is 265/60R18 in inches?
A 265/60R18 tire is 30.52 inches tall and 10.4 inches wide, with a 6.26-inch sidewall, mounted on a 18-inch wheel. In metric that is 775 mm tall and 265 mm wide. The circumference is 95.88 inches.
How tall is a 265/60R18 tire?
30.52 inches, or 775 mm. That is the overall diameter, wheel included. It turns about 661 times per mile, which is what your speedometer counts.
What do the numbers in 265/60R18 mean?
265 is the tread width in millimeters, 60 is the aspect ratio — the sidewall height as a percentage of the tread width — and 18 is the wheel diameter in inches. So the sidewall is 265 × 60% = 159.0 mm tall.