265/70 R17 vs 305/40 R22

What changes when you change tire size?

305/40 R22 stays within the configured tolerance for 265/70 R17: 0.0% diameter and 0.0% speedometer effect.

Geometric comparison

Geometric comparison
Metric This size: 265/70 R17 Alternative: 305/40 R22 Difference Verdict
Overall diameter 31.61 in 31.61 in 0.0% Within tolerance
Section width 10.43 in 12.01 in +1.57 in Computed difference
Sidewall height 7.30 in 4.80 in -2.50 in Computed difference
Circumference 99.29 in 99.29 in 0.0% Within tolerance
Speedo 0.0% 0.0% 0.0% Within tolerance

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.

Not recommendedWithin tolerance · Diameter +0.0% (+0.00 in) · US preset (±3%)
  • Not recommended · 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 -2.50 in · Width +1.57 in.
Diameter+0.0%+0.00 in
Speedo @ 60+0.0%60 mph → 60.0 mph
Sidewall-2.50 inWidth +1.57 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
31.61 in 31.61 in+0.00 in
Sidewall
7.30 in 4.80 in-2.50 in
Width
10.43 in 12.01 in+1.57 in
Circumference
99.29 in 99.29 in+0.0%
Revs / mile
638 638
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↔ +1.57 in
  • Current — 265/70 R17
  • New — 305/40 R22
  • Grounded to the road: the axle rises +0.00 in.

Tires and wheels in one comparison

Result report

265/70 R17 305/40 R22 · Not recommended · Within tolerance

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

In-tolerance alternative sizes

In-tolerance alternative sizes
SizeDiameterSpeedo @ 100Use this
−1″ 275/70R16-1.4%-1.4%
OE 265/70R17+0.0%+0.0%
+1″ 255/70R18+1.4%+1.4%
+2″ 275/60R19+1.2%+1.2%

265/70 R17 · 305/40 R22 · Methodology