315/35R22 tire size
315/35R22 is a metric size: 30.7" tall, 12.4" wide, on a 22" rim — about a 30.5x12.50R22. The sidewall is 4.3" and the tire turns 657 times per mile.
315/35R22 specs
| Overall diameter (height) | 30.68" · 779 mm |
|---|---|
| Section width | 12.40" · 315 mm |
| Sidewall height | 4.34" · 110 mm (35% of width) |
| Rim diameter | 22" |
| Circumference | 96.39" · 2.448 m |
| Revolutions per mile | 657 (408 per km) |
| Inch (flotation) equivalent | 30.5x12.50R22 |
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 | |
|---|---|---|---|---|---|
| 285/45R22 common | 32.10" | +4.62% | -30 mm | 62.8 mph | compare → |
| 275/40R22 | 30.66" | -0.06% | -40 mm | 60.0 mph | compare → |
| 265/40R22 | 30.35" | -1.09% | -50 mm | 59.3 mph | compare → |
| 265/35R22 | 29.30" | -4.49% | -50 mm | 57.3 mph | compare → |
| 285/35R22 | 29.85" | -2.69% | -30 mm | 58.4 mph | compare → |
| 285/40R22 | 30.98" | +0.96% | -30 mm | 60.6 mph | compare → |
| 275/45R22 | 31.74" | +3.46% | -40 mm | 62.1 mph | compare → |
| 305/40R22 | 31.61" | +3.02% | -10 mm | 61.8 mph | compare → |
| 275/35R22 | 29.58" | -3.59% | -40 mm | 57.8 mph | compare → |
| 325/35R22 | 30.96" | +0.90% | +10 mm | 60.5 mph | compare → |
| 295/35R22 | 30.13" | -1.80% | -20 mm | 58.9 mph | compare → |
| 295/40R22 | 31.29" | +1.99% | -20 mm | 61.2 mph | compare → |
| 255/40R22 | 30.03" | -2.12% | -60 mm | 58.7 mph | compare → |
| 315/30R22 | 29.44" | -4.04% | 0 mm | 57.6 mph | compare → |
| 255/45R22 | 31.04" | +1.15% | -60 mm | 60.7 mph | calculate → |
| 305/35R22 | 30.41" | -0.90% | -10 mm | 59.5 mph | calculate → |
| 325/30R22 | 29.68" | -3.27% | +10 mm | 58.0 mph | calculate → |
| 305/30R22 | 29.20" | -4.81% | -10 mm | 57.1 mph | calculate → |
| 265/45R22 | 31.39" | +2.31% | -50 mm | 61.4 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 | |
|---|---|---|---|---|---|
| 275/45R21 | 30.74" | +0.21% | -40 mm | 60.1 mph | compare → |
| 265/45R21 | 30.39" | -0.95% | -50 mm | 59.4 mph | compare → |
| 315/40R21 | 30.92" | +0.78% | 0 mm | 60.5 mph | compare → |
| 285/35R23 | 30.85" | +0.56% | -30 mm | 60.3 mph | compare → |
| 315/30R23 | 30.44" | -0.78% | 0 mm | 59.5 mph | calculate → |
| 325/30R23 | 30.68" | -0.01% | +10 mm | 60.0 mph | calculate → |
| 305/40R21 | 30.61" | -0.24% | -10 mm | 59.9 mph | calculate → |
| 335/30R23 | 30.91" | +0.76% | +20 mm | 60.5 mph | calculate → |
| 275/35R23 | 30.58" | -0.33% | -40 mm | 59.8 mph | calculate → |
Try another size against 315/35R22
Questions
What size is 315/35R22 in inches?
315/35R22 is about 30.7" tall and 12.4" wide on a 22-inch rim — roughly a 30.5x12.50R22 in inch sizing.
What does 315/35R22 mean?
315 mm section width, sidewall 35% of the width (4.34"), radial construction, 22-inch rim.
What tire sizes are equivalent to 315/35R22?
On the same 22" rim, within 3% of the diameter: 275/40R22 (-0.06%), 305/35R22 (-0.90%), 325/35R22 (+0.90%), 285/40R22 (+0.96%), 265/40R22 (-1.09%), 255/45R22 (+1.15%).
How many revolutions per mile does a 315/35R22 tire make?
About 657 revolutions per mile (circumference 96.4").
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.