265/45R19 tire size
265/45R19 is a metric size: 28.4" tall, 10.4" wide, on a 19" rim — about a 28.5x10.50R19. The sidewall is 4.7" and the tire turns 710 times per mile.
265/45R19 specs
| Overall diameter (height) | 28.39" · 721 mm |
|---|---|
| Section width | 10.43" · 265 mm |
| Sidewall height | 4.69" · 119 mm (45% of width) |
| Rim diameter | 19" |
| Circumference | 89.19" · 2.265 m |
| Revolutions per mile | 710 (441 per km) |
| Inch (flotation) equivalent | 28.5x10.50R19 |
Equivalent sizes on a 19" 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 | |
|---|---|---|---|---|---|
| 235/55R19 common | 29.18" | +2.77% | -30 mm | 61.7 mph | calculate → |
| 245/45R19 common | 27.68" | -2.50% | -20 mm | 58.5 mph | calculate → |
| 255/50R19 common | 29.04" | +2.29% | -10 mm | 61.4 mph | calculate → |
| 255/40R19 common | 27.03" | -4.78% | -10 mm | 57.1 mph | calculate → |
| 255/45R19 common | 28.04" | -1.25% | -10 mm | 59.3 mph | calculate → |
| 225/55R19 common | 28.74" | +1.25% | -40 mm | 60.7 mph | calculate → |
| 275/40R19 common | 27.66" | -2.57% | +10 mm | 58.5 mph | calculate → |
| 225/45R19 common | 26.97" | -4.99% | -40 mm | 57.0 mph | calculate → |
| 235/50R19 common | 28.25" | -0.49% | -30 mm | 59.7 mph | calculate → |
| 245/55R19 common | 29.61" | +4.30% | -20 mm | 62.6 mph | calculate → |
| 235/45R19 common | 27.33" | -3.74% | -30 mm | 57.8 mph | calculate → |
| 265/50R19 common | 29.43" | +3.67% | 0 mm | 62.2 mph | calculate → |
| 245/50R19 common | 28.65" | +0.90% | -20 mm | 60.5 mph | calculate → |
| 285/40R19 | 27.98" | -1.46% | +20 mm | 59.1 mph | calculate → |
| 265/40R19 | 27.35" | -3.67% | 0 mm | 57.8 mph | calculate → |
| 275/45R19 | 28.74" | +1.25% | +10 mm | 60.7 mph | calculate → |
| 295/35R19 | 27.13" | -4.44% | +30 mm | 57.3 mph | calculate → |
| 285/45R19 | 29.10" | +2.50% | +20 mm | 61.5 mph | calculate → |
| 345/30R19 | 27.15" | -4.37% | +80 mm | 57.4 mph | calculate → |
| 295/40R19 | 28.29" | -0.35% | +30 mm | 59.8 mph | calculate → |
| 305/35R19 | 27.41" | -3.47% | +40 mm | 57.9 mph | calculate → |
| 155/70R19 | 27.54" | -2.98% | -110 mm | 58.2 mph | calculate → |
| 355/30R19 | 27.39" | -3.54% | +90 mm | 57.9 mph | calculate → |
| 295/45R19 | 29.45" | +3.74% | +30 mm | 62.2 mph | calculate → |
| 345/35R19 | 28.51" | +0.42% | +80 mm | 60.2 mph | calculate → |
| 215/50R19 | 27.46" | -3.26% | -50 mm | 58.0 mph | calculate → |
| 175/60R19 | 27.27" | -3.95% | -90 mm | 57.6 mph | calculate → |
| 155/80R19 | 28.76" | +1.32% | -110 mm | 60.8 mph | calculate → |
| 315/40R19 | 28.92" | +1.87% | +50 mm | 61.1 mph | calculate → |
| 315/35R19 | 27.68" | -2.50% | +50 mm | 58.5 mph | calculate → |
| 145/80R19 | 28.13" | -0.90% | -120 mm | 59.5 mph | calculate → |
| 225/50R19 | 27.86" | -1.87% | -40 mm | 58.9 mph | calculate → |
Plus / minus sizing: 18" and 20" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 235/55R18 common | 28.18" | -0.75% | -30 mm | 59.6 mph | calculate → |
| 225/60R18 common | 28.63" | +0.85% | -40 mm | 60.5 mph | calculate → |
| 275/40R20 common | 28.66" | +0.96% | +10 mm | 60.6 mph | calculate → |
| 245/55R18 | 28.61" | +0.78% | -20 mm | 60.5 mph | calculate → |
| 295/35R20 | 28.13" | -0.92% | +30 mm | 59.5 mph | calculate → |
| 305/35R20 | 28.41" | +0.06% | +40 mm | 60.0 mph | calculate → |
| 235/45R20 | 28.33" | -0.22% | -30 mm | 59.9 mph | calculate → |
| 265/40R20 | 28.35" | -0.15% | 0 mm | 59.9 mph | calculate → |
| 295/45R18 | 28.45" | +0.22% | +30 mm | 60.1 mph | calculate → |
| 345/30R20 | 28.15" | -0.85% | +80 mm | 59.5 mph | calculate → |
| 155/85R18 | 28.37" | -0.06% | -110 mm | 60.0 mph | calculate → |
| 215/60R18 | 28.16" | -0.82% | -50 mm | 59.5 mph | calculate → |
| 265/50R18 | 28.43" | +0.15% | 0 mm | 60.1 mph | calculate → |
| 195/55R20 | 28.44" | +0.19% | -70 mm | 60.1 mph | calculate → |
Try another size against 265/45R19
Questions
What size is 265/45R19 in inches?
265/45R19 is about 28.4" tall and 10.4" wide on a 19-inch rim — roughly a 28.5x10.50R19 in inch sizing.
What does 265/45R19 mean?
265 mm section width, sidewall 45% of the width (4.69"), radial construction, 19-inch rim.
What tire sizes are equivalent to 265/45R19?
On the same 19" rim, within 3% of the diameter: 295/40R19 (-0.35%), 345/35R19 (+0.42%), 235/50R19 (-0.49%), 145/80R19 (-0.90%), 245/50R19 (+0.90%), 225/55R19 (+1.25%).
How many revolutions per mile does a 265/45R19 tire make?
About 710 revolutions per mile (circumference 89.2").
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.