185/60R13 tire size
185/60R13 is a metric size: 21.7" tall, 7.3" wide, on a 13" rim — about a 21.5x7.50R13. The sidewall is 4.4" and the tire turns 928 times per mile.
185/60R13 specs
| Overall diameter (height) | 21.74" · 552 mm |
|---|---|
| Section width | 7.28" · 185 mm |
| Sidewall height | 4.37" · 111 mm (60% of width) |
| Rim diameter | 13" |
| Circumference | 68.30" · 1.735 m |
| Revolutions per mile | 928 (576 per km) |
| Inch (flotation) equivalent | 21.5x7.50R13 |
Equivalent sizes on a 13" 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 | |
|---|---|---|---|---|---|
| 225/50R13 | 21.86" | +0.54% | +40 mm | 60.3 mph | calculate → |
| 175/65R13 | 21.96" | +1.00% | -10 mm | 60.6 mph | calculate → |
| 22x8.00R13 | 22.00" | +1.20% | +18 mm | 60.7 mph | calculate → |
| 155/70R13 | 21.54" | -0.91% | -30 mm | 59.5 mph | calculate → |
| 215/50R13 | 21.46" | -1.27% | +30 mm | 59.2 mph | calculate → |
| 165/65R13 | 21.44" | -1.36% | -20 mm | 59.2 mph | calculate → |
| 145R13 | 22.36" | +2.86% | -40 mm | 61.7 mph | calculate → |
Try another size against 185/60R13
Questions
What size is 185/60R13 in inches?
185/60R13 is about 21.7" tall and 7.3" wide on a 13-inch rim — roughly a 21.5x7.50R13 in inch sizing.
What does 185/60R13 mean?
185 mm section width, sidewall 60% of the width (4.37"), radial construction, 13-inch rim.
What tire sizes are equivalent to 185/60R13?
On the same 13" rim, within 3% of the diameter: 225/50R13 (+0.54%), 155/70R13 (-0.91%), 175/65R13 (+1.00%), 22x8.00R13 (+1.20%), 215/50R13 (-1.27%), 165/65R13 (-1.36%).
How many revolutions per mile does a 185/60R13 tire make?
About 928 revolutions per mile (circumference 68.3").
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.