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.

Geometric comparison

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

Geometric comparison
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

Current tireLooks valid

New tireLooks valid

Market

Units

Requires verificationWithin tolerance · Diameter +0.0% (+0.00 in) · US (~3%)

Requires verification · This rating covers tire geometry only, not vehicle compatibility.
Diameter +0.0% · Ride-height change +0.00 in.
Speedometer unchanged · 60 mph → 60.0 mph.
Sidewall -0.50 in · Width +0.00 in.

Diameter+0.0%+0.00 in

Speedo @ 60+0.0%60 mph → 60.0 mph

Sidewall-0.50 inWidth +0.00 in

Ride-height change+0.00 inDiameter ÷ 2

How this result is calculated

Computed from nominal tire-size geometry: diameter, circumference and speedometer error. It does not check vehicle placard approval, load/speed rating, rim-width range, wheel-arch, suspension or brake clearance.

Methodology

Before fitting

Check the vehicle placard and owner’s manual first.
Match or exceed the required load index and speed rating.
Confirm rim-width range, bolt pattern, hub bore, offset and fasteners.
Inspect wheel-arch, suspension and brake clearance under real vehicle load.
Check TPMS, cold pressure and local roadworthiness rules.

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%
Ride-height change: 0.00 in +0.00 in
True distance per 100 indicated: 100 mi 100.0 mi+0.0%

Current — 31x10.50 R15
New — 31x10.50 R16
Grounded to the road: the axle rises +0.00 in.

Result report

31x10.50 R15 31x10.50 R16 · Requires verification · Within tolerance

Plan budget for this size: 31x10.50 R16

Copy/print uses this page state only; TireFitLab does not create an account or store a server-side report.

Plan budget for this size

Embed or cite this result

HTML iframe

<iframe src="https://tirefitlab.com/embed/tire-comparison/?from=31x10.50+R15&to=31x10.50+R16&market=us" title="31x10.50 R15 vs 31x10.50 R16 Tire size comparison" loading="lazy" width="720" height="330" style="width:100%;max-width:720px;border:0" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Markdown link

[31x10.50 R15 vs 31x10.50 R16 Tire size comparison](https://tirefitlab.com/tire-size-calculator/?from=31x10.50+R15&to=31x10.50+R16&market=us)

Open embed preview

Budget$105–$150Per tire Mid-range$140–$200Per tire Premium$200–$285Per tire

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

In-tolerance alternative sizes

In-tolerance alternative sizes
Size	Diameter	Speedo @ 100	Use this
OE `255/80R15`	+0.2%	+0.2%

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

Technical check: 2026-06-28

What changed

Checked generated routes, metadata, sitemap inclusion and localized page rendering.

Methodology