26x12.00R15 tire size
26x12.00R15 is a flotation (inch) size: 26.0" tall, 12.0" wide, on a 15" rim — about a 310/45R15. The sidewall is 5.5" and the tire turns 776 times per mile.
26x12.00R15 specs
| Overall diameter (height) | 26.00" · 660 mm |
|---|---|
| Section width | 12.00" · 305 mm |
| Sidewall height | 5.50" · 140 mm (46% of width) |
| Rim diameter | 15" |
| Circumference | 81.68" · 2.075 m |
| Revolutions per mile | 776 (482 per km) |
| Closest metric size | 310/45R15 |
Equivalent sizes on a 15" 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 | |
|---|---|---|---|---|---|
| 195/65R15 common | 24.98" | -3.92% | -110 mm | 57.6 mph | calculate → |
| 205/65R15 common | 25.49" | -1.95% | -100 mm | 58.8 mph | calculate → |
| 215/70R15 | 26.85" | +3.27% | -90 mm | 62.0 mph | calculate → |
| 205/70R15 | 26.30" | +1.15% | -100 mm | 60.7 mph | calculate → |
| 215/65R15 | 26.00" | +0.02% | -90 mm | 60.0 mph | calculate → |
| 215/60R15 | 25.16" | -3.24% | -90 mm | 58.1 mph | calculate → |
| 205/75R15 | 27.11" | +4.25% | -100 mm | 62.6 mph | calculate → |
| 235/60R15 | 26.10" | +0.39% | -70 mm | 60.2 mph | calculate → |
| 255/60R15 | 27.05" | +4.03% | -50 mm | 62.4 mph | calculate → |
| 275/50R15 | 25.83" | -0.67% | -30 mm | 59.6 mph | calculate → |
| 195/70R15 | 25.75" | -0.97% | -110 mm | 59.4 mph | calculate → |
| 225/60R15 | 25.63" | -1.42% | -80 mm | 59.1 mph | calculate → |
| 245/60R15 | 26.57" | +2.21% | -60 mm | 61.3 mph | calculate → |
| 295/50R15 | 26.61" | +2.36% | -10 mm | 61.4 mph | calculate → |
| 26x10.00R15 | 26.00" | 0.00% | -51 mm | 60.0 mph | calculate → |
| 26x8.50R15 | 26.00" | 0.00% | -89 mm | 60.0 mph | calculate → |
| 26x10.50R15 | 26.00" | 0.00% | -38 mm | 60.0 mph | calculate → |
| 26x6.00R15 | 26.00" | 0.00% | -153 mm | 60.0 mph | calculate → |
| 26x7.50R15 | 26.00" | 0.00% | -114 mm | 60.0 mph | calculate → |
| 26x8.00R15 | 26.00" | 0.00% | -102 mm | 60.0 mph | calculate → |
| 265/50R15 | 25.43" | -2.18% | -40 mm | 58.7 mph | calculate → |
| 185/70R15 | 25.20" | -3.09% | -120 mm | 58.1 mph | calculate → |
| 27x9.50R15 | 27.00" | +3.85% | -64 mm | 62.3 mph | calculate → |
| 155/80R15 | 24.76" | -4.75% | -150 mm | 57.1 mph | calculate → |
| 26x11.50R15 | 26.00" | 0.00% | -13 mm | 60.0 mph | calculate → |
| 165R15 | 25.65" | -1.33% | -140 mm | 59.2 mph | calculate → |
| 165/80R15 | 25.39" | -2.33% | -140 mm | 58.6 mph | calculate → |
| 185R15 | 26.94" | +3.63% | -120 mm | 62.2 mph | calculate → |
| 27x10.50R15 | 27.00" | +3.85% | -38 mm | 62.3 mph | calculate → |
| 235/65R15 | 27.03" | +3.95% | -70 mm | 62.4 mph | calculate → |
| 225/55R15 | 24.74" | -4.83% | -80 mm | 57.1 mph | calculate → |
Plus / minus sizing: 14" and 16" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 215/60R16 common | 26.16" | +0.61% | -90 mm | 60.4 mph | calculate → |
| 225/55R16 | 25.74" | -0.98% | -80 mm | 59.4 mph | calculate → |
| 205/75R14 | 26.11" | +0.41% | -100 mm | 60.2 mph | calculate → |
| 215/70R14 | 25.85" | -0.58% | -90 mm | 59.7 mph | calculate → |
| 255/50R16 | 26.04" | +0.15% | -50 mm | 60.1 mph | calculate → |
| 235/55R16 | 26.18" | +0.68% | -70 mm | 60.4 mph | calculate → |
| 195/65R16 | 25.98" | -0.08% | -110 mm | 60.0 mph | calculate → |
| 275/45R16 | 25.74" | -0.98% | -30 mm | 59.4 mph | calculate → |
| 26x8.50R14 | 26.00" | 0.00% | -89 mm | 60.0 mph | calculate → |
| 26x11.50R16 | 26.00" | 0.00% | -13 mm | 60.0 mph | calculate → |
| 185R14 | 25.94" | -0.21% | -120 mm | 59.9 mph | calculate → |
| 315/40R16 | 25.92" | -0.30% | +10 mm | 59.8 mph | calculate → |
Try another size against 26x12.00R15
Questions
What size is 26x12.00R15 in inches?
26x12.00R15 is about 26.0" tall and 12.0" wide on a 15-inch rim — roughly a 310/45R15 in inch sizing.
What does 26x12.00R15 mean?
26" overall diameter, 12.00" section width, radial, 15" rim.
What tire sizes are equivalent to 26x12.00R15?
On the same 15" rim, within 3% of the diameter: 26x10.50R15 (0.00%), 26x10.00R15 (0.00%), 26x11.50R15 (0.00%), 26x6.00R15 (0.00%), 26x7.50R15 (0.00%), 26x8.50R15 (0.00%).
How many revolutions per mile does a 26x12.00R15 tire make?
About 776 revolutions per mile (circumference 81.7").
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.