SidewallMath
Size tables · Updated

Tire sizes in inches

Pick a size to see its height, width and neighbours.

A metric tire size converts to inches with height = wheel + 2 × (width × aspect ÷ 100 ÷ 25.4): for example 265/70R17 is 31.6 in tall. This index links 207 common sizes and 14 flotation sizes.

By wheel size

13 inch wheels

14 inch wheels

15 inch wheels

16 inch wheels

17 inch wheels

18 inch wheels

19 inch wheels

20 inch wheels

21 inch wheels

22 inch wheels

By overall height

Sizes within half an inch of each height (calculated; real tires vary).

About 26 inches tall

205/70R15 (26.3) · 215/65R15 (26.0) · 225/60R15 (25.6) · 205/60R16 (25.7) · 205/65R16 (26.5) · 215/60R16 (26.2) · 225/55R16 (25.7) · 235/55R16 (26.2) · 215/55R17 (26.3) · 225/50R17 (25.9) · 235/50R17 (26.3) · 245/45R17 (25.7) · 215/50R18 (26.5) · 225/45R18 (26.0) · 235/45R18 (26.3) · 245/40R18 (25.7) · 255/40R18 (26.0) · 225/40R19 (26.1) · 235/40R19 (26.4) · 245/35R19 (25.8) · 255/35R19 (26.0)

About 27 inches tall

215/70R15 (26.9) · 225/65R15 (26.5) · 225/70R15 (27.4) · 215/65R16 (27.0) · 225/60R16 (26.6) · 235/60R16 (27.1) · 215/60R17 (27.2) · 225/55R17 (26.7) · 235/55R17 (27.2) · 255/50R17 (27.0) · 215/55R18 (27.3) · 225/50R18 (26.9) · 235/50R18 (27.3) · 245/45R18 (26.7) · 255/45R18 (27.0) · 225/45R19 (27.0) · 235/45R19 (27.3) · 245/40R19 (26.7) · 255/40R19 (27.0)

About 28 inches tall

235/70R15 (28.0) · 215/70R16 (27.9) · 225/65R16 (27.5) · 235/65R16 (28.0) · 245/60R16 (27.6) · 215/65R17 (28.0) · 225/60R17 (27.6) · 235/60R17 (28.1) · 225/55R18 (27.7) · 235/55R18 (28.2) · 245/50R18 (27.6) · 255/50R18 (28.0) · 225/50R19 (27.9) · 235/50R19 (28.3) · 245/45R19 (27.7) · 275/40R19 (27.7)

About 29 inches tall

235/75R15 (28.9) · 255/70R15 (29.1) · 235/70R16 (29.0) · 255/65R16 (29.1) · 225/65R17 (28.5) · 225/70R17 (29.4) · 235/65R17 (29.0) · 255/60R17 (29.0) · 275/55R17 (28.9) · 225/60R18 (28.6) · 235/60R18 (29.1) · 245/55R18 (28.6) · 255/55R18 (29.0) · 265/55R18 (29.5) · 285/50R18 (29.2) · 225/55R19 (28.7) · 235/55R19 (29.2) · 245/50R19 (28.6) · 255/50R19 (29.0) · 265/50R19 (29.4) · 275/45R19 (28.7) · 285/45R19 (29.1) · 245/45R20 (28.7) · 255/45R20 (29.0) · 265/45R20 (29.4) · 295/40R20 (29.3) · 255/40R21 (29.0) · 265/40R21 (29.3) · 285/35R21 (28.9) · 295/35R21 (29.1) · 265/35R22 (29.3)

About 30 inches tall

235/75R16 (29.9) · 245/70R16 (29.5) · 245/75R16 (30.5) · 255/70R16 (30.1) · 265/65R16 (29.6) · 245/65R17 (29.5) · 255/65R17 (30.1) · 265/60R17 (29.5) · 225/65R18 (29.5) · 235/65R18 (30.0) · 245/60R18 (29.6) · 255/60R18 (30.0) · 255/55R19 (30.0) · 265/55R19 (30.5) · 275/50R19 (29.8) · 235/55R20 (30.2) · 245/50R20 (29.6) · 255/50R20 (30.0) · 265/50R20 (30.4) · 275/45R20 (29.7) · 285/45R20 (30.1) · 295/45R20 (30.5) · 245/45R21 (29.7) · 265/45R21 (30.4) · 275/40R21 (29.7) · 265/40R22 (30.3) · 285/35R22 (29.9)

About 31 inches tall

265/70R16 (30.6) · 275/70R16 (31.2) · 235/75R17 (30.9) · 245/70R17 (30.5) · 245/75R17 (31.5) · 255/70R17 (31.1) · 265/65R17 (30.6) · 275/65R17 (31.1) · 255/65R18 (31.1) · 265/60R18 (30.5) · 275/60R18 (31.0) · 285/60R18 (31.5) · 255/55R20 (31.0) · 265/55R20 (31.5) · 275/50R20 (30.8) · 285/50R20 (31.2) · 275/45R21 (30.7) · 255/45R22 (31.0) · 275/40R22 (30.7) · 285/40R22 (31.0)

About 32 inches tall

265/75R16 (31.6) · 255/75R17 (32.1) · 265/70R17 (31.6) · 275/70R17 (32.2) · 265/65R18 (31.6) · 275/65R18 (32.1) · 275/55R20 (31.9) · 285/55R20 (32.3) · 305/50R20 (32.0) · 275/50R21 (31.8) · 275/45R22 (31.7) · 285/45R22 (32.1) · 305/40R22 (31.6)

About 33 inches tall

285/75R16 (32.8) · 255/80R17 (33.1) · 265/75R17 (32.6) · 285/70R17 (32.7) · 305/65R17 (32.6) · 265/70R18 (32.6) · 275/70R18 (33.2) · 285/65R18 (32.6) · 265/60R20 (32.5) · 275/60R20 (33.0) · 285/60R20 (33.5) · 305/55R20 (33.2)

About 34 inches tall

285/75R17 (33.8) · 315/70R17 (34.4) · 295/70R18 (34.3) · 275/65R20 (34.1)

Flotation sizes in metric

30x9.50R15 · 31x10.50R15 · 32x11.50R15 · 33x10.50R15 · 33x12.50R15 · 33x12.50R17 · 33x12.50R18 · 33x12.50R20 · 35x12.50R15 · 35x12.50R17 · 35x12.50R18 · 35x12.50R20 · 37x12.50R17 · 37x12.50R20

Calculated from the size alone. Real tires vary a little by brand and model, and the loaded radius is a bit smaller. Confirm the wheel width range, clearance, load index and speed rating for your vehicle. See how to read a tire size, the load index chart and the speed rating chart.

FAQ

How do I convert a tire size to inches?

Height = wheel diameter + 2 × (section width in mm × aspect ratio ÷ 100) ÷ 25.4. Width in inches = section width ÷ 25.4.

How tall is a 265/70R17?

31.6 inches (803 mm).

Is this a list of the most popular sizes?

No. It is a compiled list of typical car, SUV and truck sizes. We make no popularity or availability claims.

Keep reading

More free tools