365/45R24 tire size
365/45R24 is a metric size: 36.9" tall, 14.4" wide, on a 24" rim — about a 37x14.50R24. The sidewall is 6.5" and the tire turns 546 times per mile.
365/45R24 specs
| Overall diameter (height) | 36.93" · 938 mm |
|---|---|
| Section width | 14.37" · 365 mm |
| Sidewall height | 6.47" · 164 mm (45% of width) |
| Rim diameter | 24" |
| Circumference | 116.03" · 2.947 m |
| Revolutions per mile | 546 (339 per km) |
| Inch (flotation) equivalent | 37x14.50R24 |
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" | +0.18% | -22 mm | 60.1 mph | calculate → |
| 38x13.50R24 | 38.00" | +2.89% | -22 mm | 61.7 mph | calculate → |
| 38x15.50R24 | 38.00" | +2.89% | +29 mm | 61.7 mph | calculate → |
| 315/50R24 | 36.40" | -1.44% | -50 mm | 59.1 mph | calculate → |
| 37x14.50R24 | 37.00" | +0.18% | +3 mm | 60.1 mph | calculate → |
| 345/50R24 | 37.58" | +1.76% | -20 mm | 61.1 mph | calculate → |
| 38x14.00R24 | 38.00" | +2.89% | -9 mm | 61.7 mph | calculate → |
Try another size against 365/45R24
Questions
What size is 365/45R24 in inches?
365/45R24 is about 36.9" tall and 14.4" wide on a 24-inch rim — roughly a 37x14.50R24 in inch sizing.
What does 365/45R24 mean?
365 mm section width, sidewall 45% of the width (6.47"), radial construction, 24-inch rim.
What tire sizes are equivalent to 365/45R24?
On the same 24" rim, within 3% of the diameter: 37x13.50R24 (+0.18%), 37x14.50R24 (+0.18%), 315/50R24 (-1.44%), 345/50R24 (+1.76%), 38x13.50R24 (+2.89%), 38x14.00R24 (+2.89%).
How many revolutions per mile does a 365/45R24 tire make?
About 546 revolutions per mile (circumference 116.0").
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.