35x12.50 R17

What size is 35x12.50 R17?

35x12.50 R17 has an overall diameter of about 35.00 in, a section width of 12.50 in and a sidewall height of 9.00 in. It turns roughly 576 times per mile. Below are the exact figures plus plus/minus sizes that stay within the selected diameter tolerance.

Geometric comparison

35x12.50 R18 stays within the configured tolerance for 35x12.50 R17: 0.0% diameter and 0.0% speedometer effect.

Geometric comparison
Metric This size: 35x12.50 R17 Alternative: 35x12.50 R18 Difference Verdict
Overall diameter 35.00 in 35.00 in 0.0% Within tolerance
Section width 12.50 in 12.50 in 0.00 in Computed difference
Sidewall height 9.00 in 8.50 in -0.50 in Computed difference
Circumference 109.96 in 109.96 in 0.0% Within tolerance
Speedo 0.0% 0.0% 0.0% Within tolerance

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What this geometry means

35x12.50 R17 has a taller-sidewall proportion. The marking directly specifies a 35.00 in nominal overall diameter, a 12.50 in section and a 17-inch rim. One sidewall is 9.00 in; both sidewalls make up 51% of the diameter, while the rim makes up 49%.

Curated alternatives: 2 sizes, spanning +0.0% to +0.0% in nominal diameter versus 35x12.50 R17.

Width endpoints in that set are 35x12.50 R18 (+0.00 in) and 35x12.50 R20 (+0.00 in) relative to 35x12.50 R17.

At the nominal 109.96 in circumference, 1,000 rotations cover 2.79 km (1.74 mi); the inverse rates are 358/km and 576/mi.

The closest diameter entry is 35x12.50 R18 at +0.0%. Relative to 35x12.50 R17, it changes nominal section width by +0.00 in, each sidewall by -0.50 in and radius by +0.00 in.

Section-width mix versus 35x12.50 R17: 0 narrower, 2 equal-width and 0 wider entries.

This is a nominal geometry comparison only. Vehicle clearance, wheel width and offset, load and speed ratings, and manufacturer approval still require separate checks.

Specification

Specification
Overall diameter 35.00 in
Section width 12.50 in
Sidewall height 9.00 in
Circumference 109.96 in
Revolutions 358 /km · 576 /mi

In-tolerance sizes

Alternative sizes that stay within the selected diameter tolerance:

In-tolerance sizes
Size Diameter Speedo Verdict
35x12.50 R18 +0.0% +0.0% ✓ OK
35x12.50 R20 +0.0% +0.0% ✓ OK

Compare sizes

Looks valid
Looks valid
Units
Editorial preset

These are TireFitLab editorial diameter-screening presets. Regional names choose a preset, not a national legal limit, ETRTO rule or vehicle approval. The AWD preset does not establish an allowable drivetrain mismatch. Use the exact vehicle and tyre manufacturer instructions; nominal geometry alone cannot approve fitment.

Requires verificationWithin tolerance · Diameter +0.0% (+0.00 in) · US preset (±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
35.00 in 35.00 in+0.00 in
Sidewall
9.00 in 8.50 in-0.50 in
Width
12.50 in 12.50 in+0.00 in
Circumference
109.96 in 109.96 in+0.0%
Revs / mile
576 576
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%
Δ⌀ +0.00 inΔ↔ +0.00 in
  • Current — 35x12.50 R17
  • New — 35x12.50 R18
  • Grounded to the road: the axle rises +0.00 in.

Tires and wheels in one comparison

Result report

35x12.50 R17 35x12.50 R18 · Requires verification · Within tolerance

Plan budget for this size: 35x12.50 R18

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Plan budget for this size
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Estimated budgetBudget$160–$230Per tireMid-range$215–$300Per tirePremium$305–$430Per tire

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

In-tolerance alternative sizes

In-tolerance alternative sizes
SizeDiameterSpeedo @ 100Use this
−1″ 315/75R16-1.1%-1.1%
OE 325/70R17-0.2%-0.2%
+1″ 315/70R18+1.0%+1.0%
+2″ 315/65R19+0.3%+0.3%

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Last reviewed: 2026-09-04