245/35R20 tire size
245/35R20 is a metric size: 26.8" tall, 9.6" wide, on a 20" rim — about a 27x9.50R20. The sidewall is 3.4" and the tire turns 754 times per mile.
245/35R20 specs
| Overall diameter (height) | 26.75" · 680 mm |
|---|---|
| Section width | 9.65" · 245 mm |
| Sidewall height | 3.38" · 86 mm (35% of width) |
| Rim diameter | 20" |
| Circumference | 84.04" · 2.135 m |
| Revolutions per mile | 754 (468 per km) |
| Inch (flotation) equivalent | 27x9.50R20 |
Equivalent sizes on a 20" 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 | |
|---|---|---|---|---|---|
| 245/40R20 common | 27.72" | +3.61% | 0 mm | 62.2 mph | compare → |
| 255/35R20 common | 27.03" | +1.03% | +10 mm | 60.6 mph | compare → |
| 275/35R20 common | 27.58" | +3.09% | +30 mm | 61.9 mph | compare → |
| 255/40R20 common | 28.03" | +4.78% | +10 mm | 62.9 mph | compare → |
| 285/35R20 common | 27.85" | +4.12% | +40 mm | 62.5 mph | compare → |
| 285/30R20 common | 26.73" | -0.07% | +40 mm | 60.0 mph | compare → |
| 275/30R20 common | 26.50" | -0.96% | +30 mm | 59.4 mph | compare → |
| 265/35R20 common | 27.30" | +2.06% | +20 mm | 61.2 mph | compare → |
| 235/35R20 | 26.48" | -1.03% | -10 mm | 59.4 mph | compare → |
| 295/30R20 | 26.97" | +0.81% | +50 mm | 60.5 mph | compare → |
| 305/30R20 | 27.20" | +1.69% | +60 mm | 61.0 mph | compare → |
| 245/30R20 | 25.79" | -3.61% | 0 mm | 57.8 mph | compare → |
| 265/30R20 | 26.26" | -1.84% | +20 mm | 58.9 mph | compare → |
| 255/30R20 | 26.02" | -2.72% | +10 mm | 58.4 mph | compare → |
| 225/35R20 | 26.20" | -2.06% | -20 mm | 58.8 mph | compare → |
| 335/25R20 | 26.59" | -0.59% | +90 mm | 59.6 mph | compare → |
| 315/30R20 | 27.44" | +2.58% | +70 mm | 61.5 mph | compare → |
| 235/30R20 | 25.55" | -4.49% | -10 mm | 57.3 mph | compare → |
| 305/25R20 | 26.00" | -2.80% | +60 mm | 58.3 mph | compare → |
| 235/40R20 | 27.40" | +2.43% | -10 mm | 61.5 mph | calculate → |
| 295/25R20 | 25.81" | -3.53% | +50 mm | 57.9 mph | calculate → |
| 335/30R20 | 27.91" | +4.34% | +90 mm | 62.6 mph | calculate → |
| 325/25R20 | 26.40" | -1.32% | +80 mm | 59.2 mph | calculate → |
| 325/30R20 | 27.68" | +3.46% | +80 mm | 62.1 mph | calculate → |
| 285/25R20 | 25.61" | -4.27% | +40 mm | 57.4 mph | calculate → |
| 215/45R20 | 27.62" | +3.24% | -30 mm | 61.9 mph | calculate → |
| 345/25R20 | 26.79" | +0.15% | +100 mm | 60.1 mph | calculate → |
| 225/40R20 | 27.09" | +1.25% | -20 mm | 60.8 mph | calculate → |
| 195/50R20 | 27.68" | +3.46% | -50 mm | 62.1 mph | calculate → |
| 145/60R20 | 26.85" | +0.37% | -100 mm | 60.2 mph | calculate → |
| 155/60R20 | 27.32" | +2.13% | -90 mm | 61.3 mph | calculate → |
| 145/65R20 | 27.42" | +2.50% | -100 mm | 61.5 mph | calculate → |
| 175/55R20 | 27.58" | +3.09% | -70 mm | 61.9 mph | calculate → |
| 315/25R20 | 26.20" | -2.06% | +70 mm | 58.8 mph | calculate → |
| 165/60R20 | 27.80" | +3.90% | -80 mm | 62.3 mph | calculate → |
| 155/65R20 | 27.93" | +4.42% | -90 mm | 62.6 mph | calculate → |
| 225/45R20 | 27.97" | +4.56% | -20 mm | 62.7 mph | calculate → |
Plus / minus sizing: 19" and 21" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 245/40R19 common | 26.72" | -0.13% | 0 mm | 59.9 mph | compare → |
| 275/35R19 common | 26.58" | -0.65% | +30 mm | 59.6 mph | compare → |
| 225/45R19 common | 26.97" | +0.82% | -20 mm | 60.5 mph | compare → |
| 285/35R19 common | 26.85" | +0.38% | +40 mm | 60.2 mph | compare → |
| 325/30R19 | 26.68" | -0.28% | +80 mm | 59.8 mph | compare → |
| 295/25R21 | 26.81" | +0.21% | +50 mm | 60.1 mph | calculate → |
| 305/25R21 | 27.00" | +0.94% | +60 mm | 60.6 mph | calculate → |
| 245/30R21 | 26.79" | +0.13% | 0 mm | 60.1 mph | calculate → |
| 195/50R19 | 26.68" | -0.28% | -50 mm | 59.8 mph | calculate → |
| 335/30R19 | 26.91" | +0.60% | +90 mm | 60.4 mph | calculate → |
Try another size against 245/35R20
Questions
What size is 245/35R20 in inches?
245/35R20 is about 26.8" tall and 9.6" wide on a 20-inch rim — roughly a 27x9.50R20 in inch sizing.
What does 245/35R20 mean?
245 mm section width, sidewall 35% of the width (3.38"), radial construction, 20-inch rim.
What tire sizes are equivalent to 245/35R20?
On the same 20" rim, within 3% of the diameter: 285/30R20 (-0.07%), 345/25R20 (+0.15%), 145/60R20 (+0.37%), 335/25R20 (-0.59%), 295/30R20 (+0.81%), 275/30R20 (-0.96%).
How many revolutions per mile does a 245/35R20 tire make?
About 754 revolutions per mile (circumference 84.0").
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.