325/60R20 vs 325/50R22 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

325/60R20: 35.35″ (898 mm) tall, 12.80″ (325 mm) wide, sidewall 7.68″ (195 mm) — 570 revolutions per mile.

Within the usual 3% rule

−1.58% diameter

Most fitment guides accept up to 3%. Check clearance at full lock and full suspension compression before committing.

  • Needs 22″ wheels: this tire does not fit your 20″ rims.

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Measurement325/60R20325/50R22Diff%
Overall diameter35.35″898 mm34.80″884 mm−0.56″−1.6%
Section width325.0 mm325.0 mm0.0 mm0.0%
Sidewall height195.0 mm162.5 mm−32.5 mm−16.7%
Rim diameter20″22″+2″+10.0%
Circumference111.07″2821 mm109.31″2777 mm−1.76″−1.6%
Revolutions per mileturns per distance; drives the odometer570354 /km580360 /km+9+1.6%
Ride height change——−0.28″ −7.1 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
59.1mph
95 km/h

Overlay

325/60R20325/50R22

Plus sizing: 325/60R20 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 325/60R20 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R22 (+2) 305/55R22 35.21″ −0.4% Compare
325/50R22 34.80″ −1.6% 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 →