275/55 R19 vs 265/70 R17

275/55 R19 vs 265/70 R17

265/70 R17 stays within the configured tolerance for 275/55 R19: +2.3% diameter and +2.3% speedometer effect.

Fitment verdict

265/70 R17 stays within the configured tolerance for 275/55 R19: +2.3% diameter and +2.3% speedometer effect.

Metric This size: 275/55 R19 Alternative: 265/70 R17 Difference Verdict
Overall diameter 30.91 in 31.61 in +2.3% Within tolerance
Section width 10.83 in 10.43 in -0.39 in Computed difference
Sidewall height 5.95 in 7.30 in +1.35 in Computed difference
Circumference 97.10 in 99.29 in +2.3% Within tolerance
Speedo 0.0% +2.3% +2.3% Within tolerance

Compare sizes

Looks valid
Looks valid
Units
✓ Within toleranceDiameter +2.3% (+0.70 in) · US (~3%)
  • Within tolerance · Diameter +2.3%.
  • Speedo @ 60: 60 mph61.4 mph.
  • Sidewall +1.35 in · Width -0.39 in.
Diameter+2.3%+0.70 in
Speedo @ 60+2.3%60 mph61.4 mph
Sidewall+1.35 inWidth -0.39 in
How this result is calculated

Computed from nominal tire-size geometry: diameter, circumference and speedometer error. It does not check wheel-arch, suspension or brake clearance.

Methodology
Diameter
30.91 in 31.61 in+0.70 in
Sidewall
5.95 in 7.30 in+1.35 in
Width
10.83 in 10.43 in-0.39 in
Circumference
97.10 in 99.29 in+2.3%
Revs / mile
652 638
Speedo @ 60
60 mph 61.4 mph+2.3%
Δ⌀ +17.7 mm
  • Current275/55 R19
  • New265/70 R17
  • Grounded to the road: the axle rises +0.35 in.

Result report

275/55 R19 265/70 R17 · Within tolerance

Use this size when shopping: 265/70 R17

Use this size when shopping

Geometric estimate. Always verify physical clearance (arches, suspension, brakes) before fitting.

Safe alternative sizes

SizeDiameterSpeedo @ 100Use this
−1″ 205/80R18+0.0%+0.0%
OE 275/55R19+0.0%+0.0%
+1″ 185/75R20+0.1%+0.1%
+2″ 315/40R21+0.0%+0.0%

275/55 R19 · 265/70 R17 · Methodology

Last reviewed: 2026-06-28
What changed
  • Reviewed deterministic geometry, load/speed references, sitemap inclusion and localized page shell.