185/80R13 vs 195/70R14 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

185/80R13: 24.65″ (626 mm) tall, 7.28″ (185 mm) wide, sidewall 5.83″ (148 mm) — 818 revolutions per mile.

Well within tolerance

+0.38% diameter

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

  • Needs 14″ wheels: this tire does not fit your 13″ rims.
  • 10 mm wider: check inner clearance and that your rims are wide enough.

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

Measurement185/80R13195/70R14Diff%
Overall diameter24.65″626 mm24.75″629 mm+0.09″+0.4%
Section width185.0 mm195.0 mm+10.0 mm+5.4%
Sidewall height148.0 mm136.5 mm−11.5 mm−7.8%
Rim diameter13″14″+1″+7.7%
Circumference77.45″1967 mm77.75″1975 mm+0.30″+0.4%
Revolutions per mileturns per distance; drives the odometer818508 /km815506 /km−3−0.4%
Ride height change——+0.05″ +1.2 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
60.2mph
97 km/h

Overlay

185/80R13195/70R14

Plus sizing: 185/80R13 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 185/80R13 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R14 (+1) 195/70R14 24.75″ +0.4% Compare
205/65R14 24.49″ −0.7% Compare
R15 (+2) 175/70R15 24.65″ 0.0% Compare
190/65R15 24.72″ +0.3% 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 →