295/40R19 vs 295/35R20 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

295/40R19: 28.29″ (719 mm) tall, 11.61″ (295 mm) wide, sidewall 4.65″ (118 mm) — 713 revolutions per mile.

Well within tolerance

−0.57% diameter

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

  • Needs 20″ wheels: this tire does not fit your 19″ rims.

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Measurement295/40R19295/35R20Diff%
Overall diameter28.29″719 mm28.13″714 mm−0.16″−0.6%
Section width295.0 mm295.0 mm0.0 mm0.0%
Sidewall height118.0 mm103.3 mm−14.8 mm−12.5%
Rim diameter19″20″+1″+5.3%
Circumference88.88″2258 mm88.37″2245 mm−0.51″−0.6%
Revolutions per mileturns per distance; drives the odometer713443 /km717446 /km+4+0.6%
Ride height change——−0.08″ −2.1 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
59.7mph
96 km/h

Overlay

295/40R19295/35R20

Plus sizing: 295/40R19 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 295/40R19 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R18 (−1) 295/45R18 28.45″ +0.6% Compare
285/45R18 28.10″ −0.7% Compare
R20 (+1) 295/35R20 28.13″ −0.6% Compare
305/35R20 28.41″ +0.4% Compare
R21 (+2) 305/30R21 28.20″ −0.3% Compare
265/35R21 28.30″ 0.0% 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 295/40R19