315/45R24 tire size
315/45R24 is a metric size: 35.2" tall, 12.4" wide, on a 24" rim — about a 35x12.50R24. The sidewall is 5.6" and the tire turns 574 times per mile.
315/45R24 specs
| Overall diameter (height) | 35.16" · 893 mm |
|---|---|
| Section width | 12.40" · 315 mm |
| Sidewall height | 5.58" · 142 mm (45% of width) |
| Rim diameter | 24" |
| Circumference | 110.46" · 2.806 m |
| Revolutions per mile | 574 (356 per km) |
| Inch (flotation) equivalent | 35x12.50R24 |
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.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 325/45R24 | 35.52" | +1.01% | +10 mm | 60.6 mph | calculate → |
| 35x13.50R24 | 35.00" | -0.46% | +28 mm | 59.7 mph | calculate → |
| 375/40R24 | 35.81" | +1.85% | +60 mm | 61.1 mph | calculate → |
| 35x12.50R24 | 35.00" | -0.46% | +3 mm | 59.7 mph | calculate → |
| 275/50R24 | 34.83" | -0.95% | -40 mm | 59.4 mph | calculate → |
| 355/40R24 | 35.18" | +0.06% | +40 mm | 60.0 mph | calculate → |
| 35x15.50R24 | 35.00" | -0.46% | +79 mm | 59.7 mph | calculate → |
| 385/35R24 | 34.61" | -1.57% | +70 mm | 59.1 mph | calculate → |
| 295/45R24 | 34.45" | -2.02% | -20 mm | 58.8 mph | calculate → |
Try another size against 315/45R24
Questions
What size is 315/45R24 in inches?
315/45R24 is about 35.2" tall and 12.4" wide on a 24-inch rim — roughly a 35x12.50R24 in inch sizing.
What does 315/45R24 mean?
315 mm section width, sidewall 45% of the width (5.58"), radial construction, 24-inch rim.
What tire sizes are equivalent to 315/45R24?
On the same 24" rim, within 3% of the diameter: 355/40R24 (+0.06%), 35x12.50R24 (-0.46%), 35x13.50R24 (-0.46%), 35x15.50R24 (-0.46%), 275/50R24 (-0.95%), 325/45R24 (+1.01%).
How many revolutions per mile does a 315/45R24 tire make?
About 574 revolutions per mile (circumference 110.5").
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.