265/70 R16 vs 31x10.50 R16

265/70 R16 vs 31x10.50 R16

31x10.50 R16 stays within the configured tolerance for 265/70 R16: +1.3% diameter and +1.3% speedometer effect.

Fitment verdict

31x10.50 R16 stays within the configured tolerance for 265/70 R16: +1.3% diameter and +1.3% speedometer effect.

Metric This size: 265/70 R16 Alternative: 31x10.50 R16 Difference Verdict
Overall diameter 30.61 in 31.00 in +1.3% Within tolerance
Section width 10.43 in 10.50 in +0.07 in Computed difference
Sidewall height 7.30 in 7.50 in +0.20 in Computed difference
Circumference 96.15 in 97.39 in +1.3% Within tolerance
Speedo 0.0% +1.3% +1.3% Within tolerance

Compare sizes

Looks valid
Looks valid
Units
✓ Within toleranceDiameter +1.3% (+0.39 in) · US (~3%)
  • Within tolerance · Diameter +1.3%.
  • Speedo @ 60: 60 mph60.8 mph.
  • Sidewall +0.20 in · Width +0.07 in.
Diameter+1.3%+0.39 in
Speedo @ 60+1.3%60 mph60.8 mph
Sidewall+0.20 inWidth +0.07 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
30.61 in 31.00 in+0.39 in
Sidewall
7.30 in 7.50 in+0.20 in
Width
10.43 in 10.50 in+0.07 in
Circumference
96.15 in 97.39 in+1.3%
Revs / mile
659 651
Speedo @ 60
60 mph 60.8 mph+1.3%
Δ⌀ +10.0 mm
  • Current265/70 R16
  • New31x10.50 R16
  • Grounded to the road: the axle rises +0.20 in.

Result report

265/70 R16 31x10.50 R16 · Within tolerance

Use this size when shopping: 31x10.50 R16

Use this size when shopping

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

Safe alternative sizes

SizeDiameterSpeedo @ 100Use this
−1″ 305/65R15+0.0%+0.0%
OE 265/70R16+0.0%+0.0%
+1″ 345/50R17-0.1%-0.1%
+2″ 355/45R18-0.1%-0.1%

265/70 R16 · 31x10.50 R16 · Methodology

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