405/25R24 tire size
405/25R24 is a metric size: 32.0" tall, 15.9" wide, on a 24" rim — about a 32x16.00R24. The sidewall is 4.0" and the tire turns 631 times per mile.
405/25R24 specs
| Overall diameter (height) | 31.97" · 812 mm |
|---|---|
| Section width | 15.94" · 405 mm |
| Sidewall height | 3.99" · 101 mm (25% of width) |
| Rim diameter | 24" |
| Circumference | 100.44" · 2.551 m |
| Revolutions per mile | 631 (392 per km) |
| Inch (flotation) equivalent | 32x16.00R24 |
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.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 305/35R24 | 32.41" | +1.35% | -100 mm | 60.8 mph | calculate → |
| 295/35R24 | 32.13" | +0.49% | -110 mm | 60.3 mph | calculate → |
| 285/35R24 | 31.85" | -0.37% | -120 mm | 59.8 mph | calculate → |
| 335/30R24 | 31.91" | -0.18% | -70 mm | 59.9 mph | calculate → |
| 315/35R24 | 32.68" | +2.22% | -90 mm | 61.3 mph | calculate → |
Try another size against 405/25R24
Questions
What size is 405/25R24 in inches?
405/25R24 is about 32.0" tall and 15.9" wide on a 24-inch rim — roughly a 32x16.00R24 in inch sizing.
What does 405/25R24 mean?
405 mm section width, sidewall 25% of the width (3.99"), radial construction, 24-inch rim.
What tire sizes are equivalent to 405/25R24?
On the same 24" rim, within 3% of the diameter: 335/30R24 (-0.18%), 285/35R24 (-0.37%), 295/35R24 (+0.49%), 305/35R24 (+1.35%), 315/35R24 (+2.22%).
How many revolutions per mile does a 405/25R24 tire make?
About 631 revolutions per mile (circumference 100.4").
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.