255/55R14 tire size in inches
A 255/55R14 tire measures
25.0" tall × 10.0" wide
5.52" sidewall on a 14" wheel. 805 revolutions per mile.
255/55R14 means a tire 255 mm wide, with sidewalls 55% as tall as the tire is wide (140 mm), radial construction (R), for a 14 inch wheel.
255/55R14 specs
| Overall diameter (height) | 25.04 inches (636 mm) |
|---|---|
| Section width | 10.04 inches (255 mm) |
| Sidewall height | 5.52 inches (140 mm) |
| Wheel (rim) diameter | 14 inches |
| Circumference | 78.7 inches (1,998 mm) |
| Revolutions per mile | 805 |
| Revolutions per kilometer | 500 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 25.0x10.0R14 |
| Aspect ratio | 55% |
Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.
Sizes that can replace 255/55R14 on a 14" wheel
These 14" sizes are within 3% of 255/55R14's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 165/85R14 | 25.04" | 6.50" | 0.0% | 60.0 mph | Compare |
| 175/80R14 | 25.02" | 6.89" | −0.1% | 60.0 mph | Compare |
| 215/65R14 | 25.00" | 8.46" | −0.2% | 59.9 mph | Compare |
| 235/60R14 | 25.10" | 9.25" | +0.2% | 60.1 mph | Compare |
| 185/75R14 | 24.93" | 7.28" | −0.5% | 59.7 mph | Compare |
| 205/70R14 | 25.30" | 8.07" | +1.0% | 60.6 mph | Compare |
| 195/70R14 | 24.75" | 7.68" | −1.2% | 59.3 mph | Compare |
| 225/60R14 | 24.63" | 8.86" | −1.7% | 59.0 mph | Compare |
| 265/55R14 | 25.48" | 10.43" | +1.7% | 61.0 mph | Compare |
| 245/55R14 | 24.61" | 9.65" | −1.7% | 59.0 mph | Compare |
| 195/75R14 | 25.52" | 7.68" | +1.9% | 61.1 mph | Compare |
| 225/65R14 | 25.52" | 8.86" | +1.9% | 61.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 255/50R15 | 15" | 25.04" | 0.0% | Compare |
| 255/45R16 | 16" | 25.04" | 0.0% | Compare |
| 255/40R17 | 17" | 25.03" | 0.0% | Compare |
| 235/65R13 | 13" | 25.03" | −0.1% | Compare |
| 255/35R18 | 18" | 25.03" | −0.1% | Compare |
| 255/30R19 | 19" | 25.02" | −0.1% | Compare |
| 255/25R20 | 20" | 25.02" | −0.1% | Compare |
| 205/50R17 | 17" | 25.07" | +0.1% | Compare |
| 185/55R17 | 17" | 25.01" | −0.1% | Compare |
| 215/30R20 | 20" | 25.08" | +0.1% | Compare |
| 305/25R19 | 19" | 25.00" | −0.2% | Compare |
| 225/40R18 | 18" | 25.09" | +0.2% | Compare |
One size up or down
Compare 255/55R14 with another size
Questions
- How tall is a 255/55R14 tire?
- A 255/55R14 tire is 25.0 inches tall (636 mm), calculated from the size. It is 10.0 inches wide with 5.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 255/55R14 mean?
- 255/55R14 means a tire 255 mm wide, with sidewalls 55% as tall as the tire is wide (140 mm), radial construction (R), for a 14 inch wheel.
- How many revolutions per mile does a 255/55R14 tire make?
- About 805 revolutions per mile, based on a circumference of 78.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 255/55R14 tire?
- Roughly 7.5" to 9.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 165/85R14 instead of 255/55R14?
- 165/85R14 is 0.00 inches (0.0%) in overall diameter, so at an indicated 60 mph you would be doing 60.0 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.