295/55R20 vs 275/50R22 tire size comparison

Change either size and everything below updates.

Start from your car make, model, year
Current tire size
/R
xR
New tire size
/R
xR

Width in mm · aspect = sidewall height as a % of width · rim in inches

Flotation (LT) sizes, all in inches: overall diameter × section width, then rim

295/55R20: 32.78″ (833 mm) tall, 11.61″ (295 mm) wide, sidewall 6.39″ (162 mm) — 615 revolutions per mile.

Well within tolerance

+0.16% diameter

The overall diameter changes by less than 1.5%, so speedometer error is negligible and ride height barely moves.

  • Needs 22″ wheels: this tire does not fit your 20″ rims.
  • 20 mm narrower: check the tire is approved for your rim width.

TireWheelGuide may earn a commission from purchases made through these links.

Measurement295/55R20275/50R22Diff%
Overall diameter32.78″833 mm32.83″834 mm+0.05″+0.2%
Section width295.0 mm275.0 mm−20.0 mm−6.8%
Sidewall height162.3 mm137.5 mm−24.8 mm−15.3%
Rim diameter20″22″+2″+10.0%
Circumference102.97″2615 mm103.13″2619 mm+0.16″+0.2%
Revolutions per mileturns per distance; drives the odometer615382 /km614382 /km−1−0.2%
Ride height change——+0.03″ +0.6 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
60.1mph
97 km/h

Overlay

295/55R20275/50R22

Plus sizing: 295/55R20 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 295/55R20 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R19 (−1) 275/60R19 31.99″ −2.4% Compare
265/70R19 33.61″ +2.5% Compare
R21 (+1) 275/55R21 32.91″ +0.4% Compare
315/45R21 32.16″ −1.9% Compare
R22 (+2) 305/45R22 32.81″ +0.1% Compare
275/50R22 32.83″ +0.2% Compare

How to use the tire size calculator

Put your current tire size — width, aspect ratio and rim diameter — into the first form, then your desired size into the second. You’ll get the difference between the new and the old size, plus the speedometer reading difference and your actual speed on the new set. Both metric and flotation (LT inch) sizes are supported.

The calculator helps you decide whether a set of tires and wheels will fit your car. To compare tires by brand and model instead, use our tire comparison tool; to look up factory sizes, browse by car make.

Changing wheels too? The wheel offset calculator shows how far a new wheel width and offset move the tire toward the suspension and the fender.

Reading a tire size

225/45R17
225
Section width in millimetres
45
Aspect ratio — sidewall height as a % of width
R
Radial construction
17
Rim diameter in inches

Full guide to the tire sidewall →

Sizes often compared with 295/55R20