235/75R15 vs 245/75R16Tire Size Comparison

Not Recommended

The 5.5% diameter difference exceeds 5% and could affect ABS and traction control.

235/75R15734mm dia245/75R16774mm dia+20.2mm

Comparison Details

Overall Diameter733.5 vs 773.9 mm (+40.4 mm)
Diameter Difference+5.51%
Section Width235 vs 245 mm (+10 mm)
Sidewall Height176.3 vs 183.8 mm (+7.5 mm)
Circumference2304.4 vs 2431.3 mm
Clearance Change+20.2 mm
Speedometer Error+5.51%
Revs/Mile698 vs 662

Speedometer Correction

When switching from 235/75R15 to 245/75R16, your speedometer will differ from actual speed.

SpeedometerActual SpeedDifference
30 km/h31.7 km/h+1.7 km/h
40 km/h42.2 km/h+2.2 km/h
50 km/h52.8 km/h+2.8 km/h
60 km/h63.3 km/h+3.3 km/h
70 km/h73.9 km/h+3.9 km/h
80 km/h84.4 km/h+4.4 km/h
90 km/h95.0 km/h+5.0 km/h
100 km/h105.5 km/h+5.5 km/h
110 km/h116.1 km/h+6.1 km/h
120 km/h126.6 km/h+6.6 km/h
130 km/h137.2 km/h+7.2 km/h

Vehicles Using These Sizes

Vehicles with 245/75R16

Individual Tire Size Details

Practical Guidance

A 5.5% diameter difference is significantly outside the safe replacement range. Switching from 235/75R15 to 245/75R16 can cause dangerous speedometer inaccuracy, ABS/traction control malfunctions, and potential clearance issues. This change is not recommended without professional verification and possible ECU recalibration.

The 3% diameter tolerance is a widely accepted industry guideline referenced by the ETRTO and most vehicle manufacturers. When in doubt, consult your vehicle's owner's manual or a qualified tire professional. For U.S. tire safety standards and recalls, see the NHTSA Tire Safety page.

Frequently Asked Questions

Not Recommended. The overall diameter differs by 5.51%, width changes by 10mm.

Speedometer error will be 5.51%. At an indicated 100 km/h, actual speed is about 105.5 km/h.

Ground clearance changes by +20.2mm per side.