CarSpecsHQ

325/45R24 tire size

325/45R24 is a metric size: 35.5" tall, 12.8" wide, on a 24" rim — about a 35.5x13.00R24. The sidewall is 5.8" and the tire turns 568 times per mile.

Diameter 35.5" sidewall 5.76" 24" rim width 325 mm (12.8")
325/45R24: 325 mm wide, sidewall 45% of the width (5.76"), on a 24" rim → 35.52" tall.

325/45R24 specs

Overall diameter (height)35.52" · 902 mm
Section width12.80" · 325 mm
Sidewall height5.76" · 146 mm (45% of width)
Rim diameter24"
Circumference111.58" · 2.834 m
Revolutions per mile568 (353 per km)
Inch (flotation) equivalent35.5x13.00R24

Equivalent sizes on a 24" rim

Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.

SizeDiameterDifferenceWidthSpeedo at 60
375/40R2435.81"+0.83%+50 mm60.5 mphcalculate →
35x13.50R2435.00"-1.45%+18 mm59.1 mphcalculate →
315/50R2436.40"+2.49%-10 mm61.5 mphcalculate →
315/45R2435.16"-1.00%-10 mm59.4 mphcalculate →
35x12.50R2435.00"-1.45%-7 mm59.1 mphcalculate →
275/50R2434.83"-1.94%-50 mm58.8 mphcalculate →
355/40R2435.18"-0.94%+30 mm59.4 mphcalculate →
35x15.50R2435.00"-1.45%+69 mm59.1 mphcalculate →
385/35R2434.61"-2.55%+60 mm58.5 mphcalculate →
295/45R2434.45"-2.99%-30 mm58.2 mphcalculate →

Try another size against 325/45R24

Questions

What size is 325/45R24 in inches?

325/45R24 is about 35.5" tall and 12.8" wide on a 24-inch rim — roughly a 35.5x13.00R24 in inch sizing.

What does 325/45R24 mean?

325 mm section width, sidewall 45% of the width (5.76"), radial construction, 24-inch rim.

What tire sizes are equivalent to 325/45R24?

On the same 24" rim, within 3% of the diameter: 375/40R24 (+0.83%), 355/40R24 (-0.94%), 315/45R24 (-1.00%), 35x12.50R24 (-1.45%), 35x13.50R24 (-1.45%), 35x15.50R24 (-1.45%).

How many revolutions per mile does a 325/45R24 tire make?

About 568 revolutions per mile (circumference 111.6").

How these numbers are computed

Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.