255/50R16 tire size
255/50R16 is a metric size: 26.0" tall, 10.0" wide, on a 16" rim — about a 26x10.00R16. The sidewall is 5.0" and the tire turns 775 times per mile.
255/50R16 specs
| Overall diameter (height) | 26.04" · 661 mm |
|---|---|
| Section width | 10.04" · 255 mm |
| Sidewall height | 5.02" · 127 mm (50% of width) |
| Rim diameter | 16" |
| Circumference | 81.81" · 2.078 m |
| Revolutions per mile | 775 (481 per km) |
| Inch (flotation) equivalent | 26x10.00R16 |
Equivalent sizes on a 16" 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 | |
|---|---|---|---|---|---|
| 205/55R16 common | 24.88" | -4.46% | -50 mm | 57.3 mph | calculate → |
| 215/55R16 common | 25.31" | -2.80% | -40 mm | 58.3 mph | calculate → |
| 215/65R16 common | 27.00" | +3.70% | -40 mm | 62.2 mph | calculate → |
| 215/60R16 common | 26.16" | +0.45% | -40 mm | 60.3 mph | calculate → |
| 205/60R16 common | 25.69" | -1.36% | -50 mm | 59.2 mph | calculate → |
| 205/65R16 common | 26.49" | +1.74% | -50 mm | 61.0 mph | calculate → |
| 225/60R16 common | 26.63" | +2.27% | -30 mm | 61.4 mph | calculate → |
| 225/50R16 common | 24.86" | -4.54% | -30 mm | 57.3 mph | calculate → |
| 235/60R16 common | 27.10" | +4.08% | -20 mm | 62.4 mph | calculate → |
| 225/55R16 | 25.74" | -1.13% | -30 mm | 59.3 mph | calculate → |
| 205/70R16 | 27.30" | +4.84% | -50 mm | 62.9 mph | calculate → |
| 245/50R16 | 25.65" | -1.51% | -10 mm | 59.1 mph | calculate → |
| 195/60R16 | 25.21" | -3.18% | -60 mm | 58.1 mph | calculate → |
| 185/60R16 | 24.74" | -4.99% | -70 mm | 57.0 mph | calculate → |
| 145/90R16 | 26.28" | +0.91% | -110 mm | 60.5 mph | calculate → |
| 235/55R16 | 26.18" | +0.53% | -20 mm | 60.3 mph | calculate → |
| 155/90R16 | 26.98" | +3.63% | -100 mm | 62.2 mph | calculate → |
| 195/65R16 | 25.98" | -0.23% | -60 mm | 59.9 mph | calculate → |
| 275/45R16 | 25.74" | -1.13% | +20 mm | 59.3 mph | calculate → |
| 26x11.50R16 | 26.00" | -0.15% | +37 mm | 59.9 mph | calculate → |
| 315/40R16 | 25.92" | -0.45% | +60 mm | 59.7 mph | calculate → |
| 265/45R16 | 25.39" | -2.49% | +10 mm | 58.5 mph | calculate → |
| 145/80R16 | 25.13" | -3.48% | -110 mm | 57.9 mph | calculate → |
| 355/40R16 | 27.18" | +4.38% | +100 mm | 62.6 mph | calculate → |
Plus / minus sizing: 15" and 17" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 225/50R17 common | 25.86" | -0.70% | -30 mm | 59.6 mph | calculate → |
| 235/50R17 common | 26.25" | +0.82% | -20 mm | 60.5 mph | calculate → |
| 205/55R17 | 25.88" | -0.62% | -50 mm | 59.6 mph | calculate → |
| 205/70R15 | 26.30" | +1.00% | -50 mm | 60.6 mph | calculate → |
| 215/65R15 | 26.00" | -0.14% | -40 mm | 59.9 mph | calculate → |
| 255/45R17 | 26.04" | -0.02% | 0 mm | 60.0 mph | calculate → |
| 235/60R15 | 26.10" | +0.24% | -20 mm | 60.1 mph | calculate → |
| 275/50R15 | 25.83" | -0.82% | +20 mm | 59.5 mph | calculate → |
| 335/35R17 | 26.23" | +0.74% | +80 mm | 60.4 mph | calculate → |
| 26x10.00R15 | 26.00" | -0.15% | -1 mm | 59.9 mph | calculate → |
| 285/40R17 | 25.98" | -0.24% | +30 mm | 59.9 mph | calculate → |
| 195/60R17 | 26.21" | +0.67% | -60 mm | 60.4 mph | calculate → |
| 26x8.50R15 | 26.00" | -0.15% | -39 mm | 59.9 mph | calculate → |
| 175/65R17 | 25.96" | -0.32% | -80 mm | 59.8 mph | calculate → |
| 145/80R17 | 26.13" | +0.36% | -110 mm | 60.2 mph | calculate → |
| 26x10.50R15 | 26.00" | -0.15% | +12 mm | 59.9 mph | calculate → |
| 26x12.00R15 | 26.00" | -0.15% | +50 mm | 59.9 mph | calculate → |
| 26x6.00R15 | 26.00" | -0.15% | -103 mm | 59.9 mph | calculate → |
| 26x6.00R17 | 26.00" | -0.15% | -103 mm | 59.9 mph | calculate → |
| 26x7.50R15 | 26.00" | -0.15% | -64 mm | 59.9 mph | calculate → |
| 26x8.00R15 | 26.00" | -0.15% | -52 mm | 59.9 mph | calculate → |
| 26x11.50R15 | 26.00" | -0.15% | +37 mm | 59.9 mph | calculate → |
| 165/70R17 | 26.09" | +0.21% | -90 mm | 60.1 mph | calculate → |
| 295/40R17 | 26.29" | +0.97% | +40 mm | 60.6 mph | calculate → |
Try another size against 255/50R16
Questions
What size is 255/50R16 in inches?
255/50R16 is about 26.0" tall and 10.0" wide on a 16-inch rim — roughly a 26x10.00R16 in inch sizing.
What does 255/50R16 mean?
255 mm section width, sidewall 50% of the width (5.02"), radial construction, 16-inch rim.
What tire sizes are equivalent to 255/50R16?
On the same 16" rim, within 3% of the diameter: 26x11.50R16 (-0.15%), 195/65R16 (-0.23%), 315/40R16 (-0.45%), 215/60R16 (+0.45%), 235/55R16 (+0.53%), 145/90R16 (+0.91%).
How many revolutions per mile does a 255/50R16 tire make?
About 775 revolutions per mile (circumference 81.8").
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.