275/65r18 vs 305/50r20 Tire Comparison Table
Tire Size Comparison Visualizer
2558
18"
179
391 Revs/km
2553
20"
153
392 Revs/km
275
815
305
813
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Speedometer Error
(Set Size1 to OEM Size)
(Set Size1 to OEM Size)
| Speed | 10 km/h | 30 km/h | 50 km/h | 70 km/h | 90 km/h | 110 km/h | 130 km/h | 150 km/h |
|---|---|---|---|---|---|---|---|---|
| Actual | 10.0 | 30.0 | 50.0 | 70.0 | 90.0 | 110.0 | 130.0 | 150.0 |
| Speed Diff | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Ground Clearance Decreased by 1
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Check out how the 275/65r18 differs in size from the 305/50r20
Would you like to upsize your tires?
The visuals and tables above illustrate the difference in dimensions between 275/65r18 and 305/50r20 tires.
By looking at a visual representation of the differences in tire diameter, width, sidewall height, circumference, revs per mile, and speed difference, it easy to compare the 275/65r18 and 305/50r20 tire sizes.
Besides, considering that 275/65r18 is the factory size, your vehicle’s speedometer shows the correct speed. Check out the chart with the possible speed difference should you decide to go with the 305/50r20 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.