265/70 R17 vs 305/40 R22

265/70 R17 vs 305/40 R22

305/40 R22 stays within the configured tolerance for 265/70 R17: 0.0% diameter and 0.0% speedometer effect.

Fitment verdict

305/40 R22 stays within the configured tolerance for 265/70 R17: 0.0% diameter and 0.0% speedometer effect.

Metric This size: 265/70 R17 Alternative: 305/40 R22 Difference Verdict
Overall diameter 31.61 in 31.61 in 0.0% Within tolerance
Section width 10.43 in 12.01 in +1.57 in Computed difference
Sidewall height 7.30 in 4.80 in -2.50 in Computed difference
Circumference 99.29 in 99.29 in 0.0% Within tolerance
Speedo 0.0% 0.0% 0.0% Within tolerance

Compare sizes

Looks valid
Looks valid
Units
✓ Within toleranceDiameter +0.0% (+0.00 in) · US (~3%)
  • Within tolerance · Diameter +0.0%.
  • Speedo @ 60: 60 mph60.0 mph.
  • Sidewall -2.50 in · Width +1.57 in.
Diameter+0.0%+0.00 in
Speedo @ 60+0.0%60 mph60.0 mph
Sidewall-2.50 inWidth +1.57 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
31.61 in 31.61 in+0.00 in
Sidewall
7.30 in 4.80 in-2.50 in
Width
10.43 in 12.01 in+1.57 in
Circumference
99.29 in 99.29 in+0.0%
Revs / mile
638 638
Speedo @ 60
60 mph 60.0 mph+0.0%
Δ⌀ +0.0 mm
  • Current265/70 R17
  • New305/40 R22
  • Grounded to the road: the axle rises +0.00 in.

Result report

265/70 R17 305/40 R22 · Within tolerance

Use this size when shopping: 305/40 R22

Use this size when shopping

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

Safe alternative sizes

SizeDiameterSpeedo @ 100Use this
−1″ 305/65R16+0.0%+0.0%
OE 265/70R17+0.0%+0.0%
+1″ 345/50R18-0.1%-0.1%
+2″ 355/45R19-0.1%-0.1%

265/70 R17 · 305/40 R22 · Methodology

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