265/40R22 tire size
265/40R22 is a metric size: 30.3" tall, 10.4" wide, on a 22" rim — about a 30.5x10.50R22. The sidewall is 4.2" and the tire turns 665 times per mile.
265/40R22 specs
| Overall diameter (height) | 30.35" · 771 mm |
|---|---|
| Section width | 10.43" · 265 mm |
| Sidewall height | 4.17" · 106 mm (40% of width) |
| Rim diameter | 22" |
| Circumference | 95.34" · 2.422 m |
| Revolutions per mile | 665 (413 per km) |
| Inch (flotation) equivalent | 30.5x10.50R22 |
Equivalent sizes on a 22" 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 | |
|---|---|---|---|---|---|
| 275/40R22 | 30.66" | +1.04% | +10 mm | 60.6 mph | compare → |
| 265/35R22 | 29.30" | -3.44% | 0 mm | 57.9 mph | compare → |
| 285/35R22 | 29.85" | -1.62% | +20 mm | 59.0 mph | compare → |
| 285/40R22 | 30.98" | +2.08% | +20 mm | 61.2 mph | compare → |
| 275/45R22 | 31.74" | +4.61% | +10 mm | 62.8 mph | compare → |
| 275/35R22 | 29.58" | -2.53% | +10 mm | 58.5 mph | compare → |
| 305/40R22 | 31.61" | +4.15% | +40 mm | 62.5 mph | compare → |
| 295/35R22 | 30.13" | -0.71% | +30 mm | 59.6 mph | compare → |
| 315/35R22 | 30.68" | +1.10% | +50 mm | 60.7 mph | compare → |
| 325/35R22 | 30.96" | +2.01% | +60 mm | 61.2 mph | compare → |
| 295/30R22 | 28.97" | -4.54% | +30 mm | 57.3 mph | compare → |
| 255/40R22 | 30.03" | -1.04% | -10 mm | 59.4 mph | compare → |
| 315/30R22 | 29.44" | -2.98% | +50 mm | 58.2 mph | compare → |
| 295/40R22 | 31.29" | +3.11% | +30 mm | 61.9 mph | compare → |
| 255/45R22 | 31.04" | +2.27% | -10 mm | 61.4 mph | calculate → |
| 255/35R22 | 29.03" | -4.35% | -10 mm | 57.4 mph | calculate → |
| 305/35R22 | 30.41" | +0.19% | +40 mm | 60.1 mph | calculate → |
| 325/30R22 | 29.68" | -2.21% | +60 mm | 58.7 mph | calculate → |
| 305/30R22 | 29.20" | -3.76% | +40 mm | 57.7 mph | calculate → |
| 355/25R22 | 28.99" | -4.48% | +90 mm | 57.3 mph | calculate → |
| 265/45R22 | 31.39" | +3.44% | 0 mm | 62.1 mph | calculate → |
Plus / minus sizing: 21" and 23" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 295/40R21 | 30.29" | -0.18% | +30 mm | 59.9 mph | compare → |
| 265/45R21 | 30.39" | +0.14% | 0 mm | 60.1 mph | compare → |
| 235/50R21 | 30.25" | -0.31% | -30 mm | 59.8 mph | calculate → |
| 315/30R23 | 30.44" | +0.31% | +50 mm | 60.2 mph | calculate → |
| 305/40R21 | 30.61" | +0.86% | +40 mm | 60.5 mph | calculate → |
| 275/35R23 | 30.58" | +0.77% | +10 mm | 60.5 mph | calculate → |
Try another size against 265/40R22
Questions
What size is 265/40R22 in inches?
265/40R22 is about 30.3" tall and 10.4" wide on a 22-inch rim — roughly a 30.5x10.50R22 in inch sizing.
What does 265/40R22 mean?
265 mm section width, sidewall 40% of the width (4.17"), radial construction, 22-inch rim.
What tire sizes are equivalent to 265/40R22?
On the same 22" rim, within 3% of the diameter: 305/35R22 (+0.19%), 295/35R22 (-0.71%), 255/40R22 (-1.04%), 275/40R22 (+1.04%), 315/35R22 (+1.10%), 285/35R22 (-1.62%).
How many revolutions per mile does a 265/40R22 tire make?
About 665 revolutions per mile (circumference 95.3").
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.