205/60 R15 vs 205/55 R16

205/60 R15 vs 205/55 R16

205/55 R16 stays within the configured tolerance for 205/60 R15: +0.8% diameter and +0.8% speedometer effect.

Fitment verdict

205/55 R16 stays within the configured tolerance for 205/60 R15: +0.8% diameter and +0.8% speedometer effect.

Metric This size: 205/60 R15 Alternative: 205/55 R16 Difference Verdict
Overall diameter 24.69 in 24.88 in +0.8% Within tolerance
Section width 8.07 in 8.07 in 0.00 in Computed difference
Sidewall height 4.84 in 4.44 in -0.40 in Computed difference
Circumference 77.55 in 78.16 in +0.8% Within tolerance
Speedo 0.0% +0.8% +0.8% Within tolerance

Compare sizes

Looks valid
Looks valid
Units
✓ Within toleranceDiameter +0.8% (+0.19 in) · US (~3%)
  • Within tolerance · Diameter +0.8%.
  • Speedo @ 60: 60 mph60.5 mph.
  • Sidewall -0.40 in · Width +0.00 in.
Diameter+0.8%+0.19 in
Speedo @ 60+0.8%60 mph60.5 mph
Sidewall-0.40 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
24.69 in 24.88 in+0.19 in
Sidewall
4.84 in 4.44 in-0.40 in
Width
8.07 in 8.07 in+0.00 in
Circumference
77.55 in 78.16 in+0.8%
Revs / mile
817 811
Speedo @ 60
60 mph 60.5 mph+0.8%
Δ⌀ +4.9 mm
  • Current205/60 R15
  • New205/55 R16
  • Grounded to the road: the axle rises +0.10 in.

Result report

205/60 R15 205/55 R16 · Within tolerance

Use this size when shopping: 205/55 R16

Use this size when shopping

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

Safe alternative sizes

SizeDiameterSpeedo @ 100Use this
−1″ 225/60R14-0.2%-0.2%
OE 205/60R15+0.0%+0.0%
+1″ 245/45R16-0.0%-0.0%
+2″ 195/50R17-0.0%-0.0%

205/60 R15 · 205/55 R16 · Methodology

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