42x15.50R24 tire size
42x15.50R24 is a flotation (inch) size: 42.0" tall, 15.5" wide, on a 24" rim — about a 390/60R24. The sidewall is 9.0" and the tire turns 480 times per mile.
42x15.50R24 specs
| Overall diameter (height) | 42.00" · 1067 mm |
|---|---|
| Section width | 15.50" · 394 mm |
| Sidewall height | 9.00" · 229 mm (58% of width) |
| Rim diameter | 24" |
| Circumference | 131.95" · 3.351 m |
| Revolutions per mile | 480 (298 per km) |
| Closest metric size | 390/60R24 |
Try another size against 42x15.50R24
Questions
What size is 42x15.50R24 in inches?
42x15.50R24 is about 42.0" tall and 15.5" wide on a 24-inch rim — roughly a 390/60R24 in inch sizing.
What does 42x15.50R24 mean?
42" overall diameter, 15.50" section width, radial, 24" rim.
What tire sizes are equivalent to 42x15.50R24?
No other common size on a 24" rim comes within 3% of this diameter.
How many revolutions per mile does a 42x15.50R24 tire make?
About 480 revolutions per mile (circumference 131.9").
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.