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Same 17 in wheel · side by side

255/75R17 vs 265/70R17

First size

mm, 115–395
% of width
inches

Second size

mm, 115–395
% of width
inches

Comparing 255/75R17 · 265/70R17. Change any field and both follow.

Difference in overall diameter

−1.41%

265/70R17 is 0.45 in shorter than 255/75R17 (−1.41%) and 0.39 in wider; at an indicated 60 mph you are doing 59.2 mph.

255/75R17 and 265/70R17 laid over each other at one scale, with the gap enlargedTwo circles drawn at one scale and sharing a center: the solid ring is 255/75R17 at 32.06 in overall, the dashed ring is 265/70R17 at 31.61 in. A detail view beside them shows the same two edges enlarged, with the gap between them dimensioned at 0.45 in.0.45 inDETAIL — ENLARGED255/75R17 · 32.06 in265/70R17 · 31.61 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

255/75R17 and 265/70R17, one measurement per row; the difference is 265/70R17 minus 255/75R17
Measure­ment 255/75R17 265/70R17 Differ­ence
Overall diameter32.06 in31.61 in−0.45 in · −1.41%
Section width10.04 in10.43 in+0.39 in
Sidewall height7.53 in7.30 in−0.23 in
Circumference100.72 in99.29 in−1.42 in
Revolutions per mile629.1638.1+9.0

Other pairs with one of these two in them

Each size on its own