31x10.50 R15 vs 31x10.50 R16

31x10.50 R15 vs 31x10.50 R16

31x10.50 R16 stays within the configured tolerance for 31x10.50 R15: 0.0% diameter and 0.0% speedometer effect.

Fitment verdict

31x10.50 R16 stays within the configured tolerance for 31x10.50 R15: 0.0% diameter and 0.0% speedometer effect.

Metric This size: 31x10.50 R15 Alternative: 31x10.50 R16 Difference Verdict
Overall diameter 31.00 in 31.00 in 0.0% Within tolerance
Section width 10.50 in 10.50 in 0.00 in Computed difference
Sidewall height 8.00 in 7.50 in -0.50 in Computed difference
Circumference 97.39 in 97.39 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 -0.50 in · Width +0.00 in.
Diameter+0.0%+0.00 in
Speedo @ 60+0.0%60 mph60.0 mph
Sidewall-0.50 inWidth +0.00 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
31.00 in 31.00 in+0.00 in
Sidewall
8.00 in 7.50 in-0.50 in
Width
10.50 in 10.50 in+0.00 in
Circumference
97.39 in 97.39 in+0.0%
Revs / mile
651 651
Speedo @ 60
60 mph 60.0 mph+0.0%
Δ⌀ +0.0 mm
  • Current31x10.50 R15
  • New31x10.50 R16
  • Grounded to the road: the axle rises +0.00 in.

Result report

31x10.50 R15 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″ 335/65R14+0.5%+0.5%
OE 255/80R15+0.2%+0.2%
+1″ 345/55R16-0.2%-0.2%
+2″ 355/50R17-0.1%-0.1%

31x10.50 R15 · 31x10.50 R16 · Methodology

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