315/50R24 tire size
315/50R24 is a metric size: 36.4" tall, 12.4" wide, on a 24" rim — about a 36.5x12.50R24. The sidewall is 6.2" and the tire turns 554 times per mile.
315/50R24 specs
| Overall diameter (height) | 36.40" · 925 mm |
|---|---|
| Section width | 12.40" · 315 mm |
| Sidewall height | 6.20" · 158 mm (50% of width) |
| Rim diameter | 24" |
| Circumference | 114.36" · 2.905 m |
| Revolutions per mile | 554 (344 per km) |
| Inch (flotation) equivalent | 36.5x12.50R24 |
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 | |
|---|---|---|---|---|---|
| 37x13.50R24 | 37.00" | +1.64% | +28 mm | 61.0 mph | calculate → |
| 325/45R24 | 35.52" | -2.43% | +10 mm | 58.5 mph | calculate → |
| 375/40R24 | 35.81" | -1.62% | +60 mm | 59.0 mph | calculate → |
| 37x14.50R24 | 37.00" | +1.64% | +53 mm | 61.0 mph | calculate → |
| 365/45R24 | 36.93" | +1.46% | +50 mm | 60.9 mph | calculate → |
Try another size against 315/50R24
Questions
What size is 315/50R24 in inches?
315/50R24 is about 36.4" tall and 12.4" wide on a 24-inch rim — roughly a 36.5x12.50R24 in inch sizing.
What does 315/50R24 mean?
315 mm section width, sidewall 50% of the width (6.20"), radial construction, 24-inch rim.
What tire sizes are equivalent to 315/50R24?
On the same 24" rim, within 3% of the diameter: 365/45R24 (+1.46%), 375/40R24 (-1.62%), 37x13.50R24 (+1.64%), 37x14.50R24 (+1.64%), 325/45R24 (-2.43%).
How many revolutions per mile does a 315/50R24 tire make?
About 554 revolutions per mile (circumference 114.4").
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.