305/60r18 vs 305/70r18 Tire Comparison Table
Tire Size Comparison Visualizer
2585
18"
183
387 Revs/km
2776
18"
214
360 Revs/km
305
823
305
884
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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 | 10.7 | 32.1 | 53.5 | 74.9 | 96.3 | 117.7 | 139.1 | 160.5 |
| Speed Diff | 0.7 | 2.1 | 3.5 | 4.9 | 6.3 | 7.7 | 9.1 | 10.5 |
Ground Clearance Increased by 30.5
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Check out how the 305/60r18 differs in size from the 305/70r18
Would you like to upsize your tires?
The visuals and tables above illustrate the difference in dimensions between 305/60r18 and 305/70r18 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 305/60r18 and 305/70r18 tire sizes.
Besides, considering that 305/60r18 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 305/70r18 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.