193Best 275/70 R18 tires
84 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Falken WildPeak A/T3W at 93/100.
33.2″
overall diameter
10.8″
section width
18″
rim diameter
608.3
revs per mile
Best 275/70 R18 all-terrain tires
50193
293
393
492
592
693
791
893
989
1090
1190
129138 more rated tires in this size are listed on their brand pages.
Best 275/70 R18 all-season tires
11
195
296
394
486
591
686
782
881
1172Best 275/70 R18 mud-terrain tires
10
193
290
392
490
586
688
1065More top-rated 275/70 R18 tires
10
191
290
390
490
588
696
789
892
982
1086Best 275/70 R18 winter tires
3
196
Conversion
275/70 R18 in inches
| Overall diameter | 33.2″ |
| Section width | 10.8″ |
| Rim diameter | 18″ |
| Sidewall height | 193 mm |
| Circumference | 104.2″ |
| Revolutions per mile | 608.3 |
The closest flotation size is 33x10.50R18 — 0.5% shorter and 3% narrower. Compare them in the calculator.
Wheels
What rims fit 275/70 R18 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
7.5″
Ideal
8.5″
Maximum
9.5″
Rim diameter is fixed at 18″ — only the width varies. Estimated from the 10.8″ section width (70–90% rule).
Fitted from the factory on rims: 18x8, 18x8.5.
Popular comparisons
Sizes often compared with 275/70 R18
Close alternatives — each opens in the tire size calculator.
Sidewall
275/70 R18 — what does it mean?
| Parameter | Meaning |
|---|---|
| 275 | The first number is the section width — 275 mm, or about 10.8 inches across the widest part of the tire. |
| 70 | The second number is the aspect ratio: sidewall height as a percentage of width. At 70%, the sidewall is about 193 mm tall. |
| R18 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 18-inch wheel. |