295/35R19 vs 265/45R18 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

295/35R19: 27.13″ (689 mm) tall, 11.61″ (295 mm) wide, sidewall 4.06″ (103 mm) — 743 revolutions per mile.

Well within tolerance

+0.96% diameter

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

  • Needs 18″ wheels: this tire does not fit your 19″ rims.
  • 30 mm narrower: check the tire is approved for your rim width.

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

Measurement295/35R19265/45R18Diff%
Overall diameter27.13″689 mm27.39″696 mm+0.26″+1.0%
Section width295.0 mm265.0 mm−30.0 mm−10.2%
Sidewall height103.3 mm119.3 mm+16.0 mm+15.5%
Rim diameter19″18″−1″−5.3%
Circumference85.23″2165 mm86.05″2186 mm+0.82″+1.0%
Revolutions per mileturns per distance; drives the odometer743462 /km736458 /km−7−0.9%
Ride height change——+0.13″ +3.3 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
60.6mph
97 km/h

Overlay

295/35R19265/45R18

Plus sizing: 295/35R19 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 295/35R19 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R18 (−1) 285/40R18 26.98″ −0.6% Compare
265/45R18 27.39″ +1.0% Compare
R20 (+1) 305/30R20 27.20″ +0.3% Compare
295/30R20 26.97″ −0.6% Compare
R21 (+2) 315/25R21 27.20″ +0.3% Compare
305/25R21 27.00″ −0.5% 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 →