335/30R23 vs 315/30R24 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

335/30R23: 30.91″ (785 mm) tall, 13.19″ (335 mm) wide, sidewall 3.96″ (101 mm) — 652 revolutions per mile.

Within the usual 3% rule

+1.71% diameter

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

  • Needs 24″ wheels: this tire does not fit your 23″ rims.
  • 20 mm narrower: check the tire is approved for your rim width.

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Measurement335/30R23315/30R24Diff%
Overall diameter30.91″785 mm31.44″799 mm+0.53″+1.7%
Section width335.0 mm315.0 mm−20.0 mm−6.0%
Sidewall height100.5 mm94.5 mm−6.0 mm−6.0%
Rim diameter23″24″+1″+4.3%
Circumference97.12″2467 mm98.77″2509 mm+1.66″+1.7%
Revolutions per mileturns per distance; drives the odometer652405 /km641399 /km−11−1.7%
Ride height change——+0.26″ +6.7 mm

Speedometer reading

Speedo shows
60mph
97 km/h
Actual speed
61.0mph
98 km/h

Overlay

335/30R23315/30R24

Plus sizing: 335/30R23 on smaller or bigger wheels

Sizes fitted to cars that keep the overall diameter within 3% of 335/30R23 on a rim one inch smaller or up to two inches bigger, closest first.

RimSizeDiameterChangeCompare
R22 (−1) 325/35R22 30.96″ +0.1% Compare
315/35R22 30.68″ −0.8% Compare
R24 (+1) 315/30R24 31.44″ +1.7% 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 →