190Best 315/60 R20 tires
5 rated tires available in this size, scored on dry, wet, snow, comfort and wear. Top overall right now is the Toyo Open Country M/T at 90/100.
34.9″
overall diameter
12.4″
section width
20″
rim diameter
578.2
revs per mile
Best 315/60 R20 mud-terrain tires
3
Best 315/60 R20 all-terrain tires
2
190
286Conversion
315/60 R20 in inches
| Overall diameter | 34.9″ |
| Section width | 12.4″ |
| Rim diameter | 20″ |
| Sidewall height | 189 mm |
| Circumference | 109.6″ |
| Revolutions per mile | 578.2 |
The closest flotation size is 35x12.50R20 — 0.3% taller and 0.8% wider. Compare them in the calculator.
Wheels
What rims fit 315/60 R20 tires?
A tire fits a range of rim widths. Too narrow or too wide and the sidewall changes shape.
Minimum
8.5″
Ideal
10″
Maximum
11″
Rim diameter is fixed at 20″ — only the width varies. Estimated from the 12.4″ section width (70–90% rule).
Popular comparisons
Sizes often compared with 315/60 R20
Close alternatives — each opens in the tire size calculator.
Sidewall
315/60 R20 — what does it mean?
| Parameter | Meaning |
|---|---|
| 315 | The first number is the section width — 315 mm, or about 12.4 inches across the widest part of the tire. |
| 60 | The second number is the aspect ratio: sidewall height as a percentage of width. At 60%, the sidewall is about 189 mm tall. |
| R20 | R means radial construction, which nearly all modern tires use. The number is the rim diameter in inches — this tire fits a 20-inch wheel. |