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Same 20 in wheel · side by side

275/60R20 vs 275/65R20

First size

mm, 115–395
% of width
inches

Second size

mm, 115–395
% of width
inches

Comparing 275/60R20 · 275/65R20. Change any field and both follow.

Difference in overall diameter

+3.28%

275/65R20 is 1.08 in taller than 275/60R20 (+3.28%) and the same width; at an indicated 60 mph you are doing 62.0 mph.

275/60R20 and 275/65R20 laid over each other at one scale, with the gap enlargedTwo circles drawn at one scale and sharing a center: the solid ring is 275/60R20 at 32.99 in overall, the dashed ring is 275/65R20 at 34.07 in. A detail view beside them shows the same two edges enlarged, with the gap between them dimensioned at 1.08 in.1.08 inDETAIL — ENLARGED275/60R20 · 32.99 in275/65R20 · 34.07 in
Both overall diameters at one scale, sharing a center. The detail beside them enlarges the one place they differ, and its dimension is the difference the table below states.

The difference, one row at a time

275/60R20 and 275/65R20, one measurement per row; the difference is 275/65R20 minus 275/60R20
Measure­ment 275/60R20 275/65R20 Differ­ence
Overall diameter32.99 in34.07 in+1.08 in · +3.28%
Section width10.83 in10.83 in0.00 in
Sidewall height6.50 in7.04 in+0.54 in
Circumference103.65 in107.05 in+3.40 in
Revolutions per mile611.3591.9−19.4

Other pairs with one of these two in them

Each size on its own