TireSizesFinder

295/40R22 vs 275/45R22

275/45R22 is 0.45 in (11.5 mm) taller than 295/40R22, a +1.45% diameter difference. With the speedometer set for 295/40R22, an indicated 60 mph is 60.9 mph on 275/45R22.

Is this a safe swap?

Diameter difference +1.45%: within the ±3% guideline

By overall diameter alone, 275/45R22 falls inside the ±3% range commonly used as a guideline when replacing 295/40R22. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 295/40R22 (31.29 in) vs 275/45R22 (31.74 in)295/40R2231.29 in × 11.61 in275/45R2231.74 in × 10.83 in
Side profile and tread width, drawn to the same scale.
295/40R22 vs 275/45R22 differences
Measurement295/40R22275/45R22Difference% diff
Overall diameter31.29 in (794.8 mm)31.74 in (806.3 mm)+0.45 in (+11.5 mm)+1.45%
Sidewall height4.65 in (118.0 mm)4.87 in (123.8 mm)+0.23 in (+5.8 mm)+4.87%
Section width11.61 in (295.0 mm)10.83 in (275.0 mm)−0.79 in (−20.0 mm)−6.78%
Circumference98.30 in (2,496.9 mm)99.73 in (2,533.1 mm)+1.42 in (+36.1 mm)+1.45%
Revolutions per mile645635−9−1.43%
True speed with the speedometer calibrated for 295/40R22
IndicatedActual on 295/40R22Actual on 275/45R22Difference
30 mph30.0 mph30.4 mph+0.4 mph
60 mph60.0 mph60.9 mph+0.9 mph
75 mph75.0 mph76.1 mph+1.1 mph

Ride-height change: 275/45R22 raises the vehicle by 0.23 in (5.8 mm) at the axle (half the +11.5 mm diameter difference).

275/45R22 is 0.45 in taller than 295/40R22 and 20 mm narrower, a 1.45% difference in overall diameter.

With the speedometer calibrated for 295/40R22, an indicated 60 mph is actually 60.9 mph on 275/45R22, and revolutions per mile change from 645 to 635.

Both sizes mount on 22-inch wheels.

Size pages

Other comparisons with 295/40R22

Other comparisons with 275/45R22

Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.