265/45R16 tire size
265/45R16 is a metric size: 25.4" tall, 10.4" wide, on a 16" rim — about a 25.5x10.50R16. The sidewall is 4.7" and the tire turns 794 times per mile.
265/45R16 specs
| Overall diameter (height) | 25.39" · 645 mm |
|---|---|
| Section width | 10.43" · 265 mm |
| Sidewall height | 4.69" · 119 mm (45% of width) |
| Rim diameter | 16" |
| Circumference | 79.76" · 2.026 m |
| Revolutions per mile | 794 (494 per km) |
| Inch (flotation) equivalent | 25.5x10.50R16 |
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" | -2.02% | -60 mm | 58.8 mph | calculate → |
| 215/55R16 common | 25.31" | -0.31% | -50 mm | 59.8 mph | calculate → |
| 215/60R16 common | 26.16" | +3.02% | -50 mm | 61.8 mph | calculate → |
| 205/60R16 common | 25.69" | +1.16% | -60 mm | 60.7 mph | calculate → |
| 205/65R16 common | 26.49" | +4.34% | -60 mm | 62.6 mph | calculate → |
| 225/60R16 common | 26.63" | +4.88% | -40 mm | 62.9 mph | calculate → |
| 195/55R16 common | 24.44" | -3.72% | -70 mm | 57.8 mph | calculate → |
| 225/50R16 common | 24.86" | -2.09% | -40 mm | 58.7 mph | calculate → |
| 225/55R16 | 25.74" | +1.40% | -40 mm | 60.8 mph | calculate → |
| 245/45R16 | 24.68" | -2.79% | -20 mm | 58.3 mph | calculate → |
| 245/50R16 | 25.65" | +1.01% | -20 mm | 60.6 mph | calculate → |
| 195/60R16 | 25.21" | -0.70% | -70 mm | 59.6 mph | calculate → |
| 185/60R16 | 24.74" | -2.56% | -80 mm | 58.5 mph | calculate → |
| 255/50R16 | 26.04" | +2.56% | -10 mm | 61.5 mph | calculate → |
| 145/90R16 | 26.28" | +3.49% | -120 mm | 62.1 mph | calculate → |
| 235/55R16 | 26.18" | +3.10% | -30 mm | 61.9 mph | calculate → |
| 275/45R16 | 25.74" | +1.40% | +10 mm | 60.8 mph | calculate → |
| 195/65R16 | 25.98" | +2.33% | -70 mm | 61.4 mph | calculate → |
| 175/60R16 | 24.27" | -4.42% | -90 mm | 57.3 mph | calculate → |
| 145/80R16 | 25.13" | -1.01% | -120 mm | 59.4 mph | calculate → |
| 315/40R16 | 25.92" | +2.09% | +50 mm | 61.3 mph | calculate → |
| 26x11.50R16 | 26.00" | +2.40% | +27 mm | 61.4 mph | calculate → |
| 215/50R16 | 24.46" | -3.64% | -50 mm | 57.8 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 | |
|---|---|---|---|---|---|
| 215/50R17 common | 25.46" | +0.29% | -50 mm | 60.2 mph | calculate → |
| 235/45R17 common | 25.33" | -0.25% | -30 mm | 59.9 mph | calculate → |
| 205/65R15 common | 25.49" | +0.40% | -60 mm | 60.2 mph | calculate → |
| 215/60R15 | 25.16" | -0.91% | -50 mm | 59.5 mph | calculate → |
| 225/60R15 | 25.63" | +0.95% | -40 mm | 60.6 mph | calculate → |
| 265/40R17 | 25.35" | -0.17% | 0 mm | 59.9 mph | calculate → |
| 155/70R17 | 25.54" | +0.60% | -110 mm | 60.4 mph | calculate → |
| 265/50R15 | 25.43" | +0.17% | 0 mm | 60.1 mph | calculate → |
| 185/70R15 | 25.20" | -0.76% | -80 mm | 59.5 mph | calculate → |
| 165/80R15 | 25.39" | +0.02% | -100 mm | 60.0 mph | calculate → |
Try another size against 265/45R16
Questions
What size is 265/45R16 in inches?
265/45R16 is about 25.4" tall and 10.4" wide on a 16-inch rim — roughly a 25.5x10.50R16 in inch sizing.
What does 265/45R16 mean?
265 mm section width, sidewall 45% of the width (4.69"), radial construction, 16-inch rim.
What tire sizes are equivalent to 265/45R16?
On the same 16" rim, within 3% of the diameter: 215/55R16 (-0.31%), 195/60R16 (-0.70%), 145/80R16 (-1.01%), 245/50R16 (+1.01%), 205/60R16 (+1.16%), 225/55R16 (+1.40%).
How many revolutions per mile does a 265/45R16 tire make?
About 794 revolutions per mile (circumference 79.8").
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.