255/45R20 Tires
255/45R20 Conversion
When converted to inches, 255/45R20 is equivalent to 29.1x10R20.
255/45R20 tire has a section width of 10 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 20 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 4.5 inches (115 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 29.1 inches (738 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 91.4 inches (2317.3 mm) is the outer perimeter of the tire. Tire revolutions indicate the number of times a tire revolves while it covers the distance in miles or kilometers. 255/45R20 tire makes 693 revolutions per mile (432 revolutions per kilometer).
| Metric | Inches | |
|---|---|---|
| Overall Diameter (Tire Height) | 738 mm | 29.1" |
| Tread Width | 255 mm | 10" |
| Rim Diameter | 508 mm | 20" |
| Sidewall Height | 115 mm | 4.5" |
| Circumference | 2317.3 mm | 91.4" |
| Revolutions | 432 per km | 693 per mile |
| Best Prices on 255/45R20 Tires | |
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 from $171.55 |
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 from $202.99 |
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 from $129.99 |
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 from $127.98 |
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255/45R20 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 255/45R20 tire can be replaced with 44 compatible tire sizes. Select optional plus size to see its specs.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 345/30R20 | 28.2" (716 mm) | -3% |
| 315/25R22 | 28.2" (717 mm) | -2.8% |
| 305/30R21 | 28.2" (717 mm) | -2.8% |
| 265/30R22 | 28.3" (719 mm) | -2.6% |
| 265/35R21 | 28.3" (719 mm) | -2.6% |
| 265/40R20 | 28.3" (720 mm) | -2.4% |
| 235/45R20 | 28.3" (720 mm) | -2.4% |
| 305/35R20 | 28.4" (722 mm) | -2.2% |
| 315/30R21 | 28.5" (723 mm) | -2% |
| 275/35R21 | 28.5" (725 mm) | -1.8% |
| 275/30R22 | 28.5" (725 mm) | -1.8% |
| 335/25R22 | 28.6" (727 mm) | -1.5% |
| 245/45R20 | 28.7" (728 mm) | -1.4% |
| 315/35R20 | 28.7" (728 mm) | -1.4% |
| 275/40R20 | 28.7" (728 mm) | -1.4% |
| 245/40R21 | 28.7" (729 mm) | -1.2% |
| 325/30R21 | 28.7" (729 mm) | -1.2% |
| 245/35R22 | 28.8" (731 mm) | -0.9% |
| 285/30R22 | 28.8" (731 mm) | -0.9% |
| 285/35R21 | 28.9" (733 mm) | -0.7% |
| 285/40R20 | 29" (736 mm) | -0.3% |
| 325/35R20 | 29" (736 mm) | -0.3% |
| 255/40R21 | 29" (737 mm) | -0.1% |
| 295/30R22 | 29" (737 mm) | -0.1% |
| 255/35R22 | 29" (737 mm) | -0.1% |
| 295/35R21 | 29.1" (739 mm) | 0.1% |
| 145/80R20 | 29.1" (740 mm) | 0.3% |
| 305/30R22 | 29.3" (743 mm) | 0.7% |
| 235/50R20 | 29.3" (744 mm) | 0.8% |
| 295/40R20 | 29.3" (744 mm) | 0.8% |
| 235/45R21 | 29.3" (745 mm) | 0.9% |
| 265/35R22 | 29.3" (745 mm) | 0.9% |
| 265/40R21 | 29.3" (745 mm) | 0.9% |
| 265/45R20 | 29.4" (746 mm) | 1.1% |
| 305/35R21 | 29.4" (747 mm) | 1.2% |
| 315/30R22 | 29.5" (749 mm) | 1.5% |
| 275/35R22 | 29.6" (751 mm) | 1.8% |
| 305/40R20 | 29.6" (752 mm) | 1.9% |
| 315/35R21 | 29.6" (753 mm) | 2% |
| 245/45R21 | 29.6" (753 mm) | 2% |
| 275/40R21 | 29.6" (753 mm) | 2% |
| 245/50R20 | 29.7" (754 mm) | 2.2% |
| 275/45R20 | 29.8" (756 mm) | 2.4% |
| 285/35R22 | 29.9" (759 mm) | 2.8% |