What is the diameter difference between 205/55R16 and 205/60R16?

205/55R16 has an overall diameter of 24.88 inches (632 mm). 205/60R16 is 25.69 inches (652 mm). That's a 0.81 inch (21 mm) difference — 205/60R16 is taller.

Will 205/60R16 cause speedometer error on a car fitted with 205/55R16?

Swapping 205/55R16 for 205/60R16 produces a speedometer error of about 3.2%. Your speedometer will read lower than your actual speed — a 60 mph indicated reading is really 61.9 mph. Anything under 3% is usually acceptable without recalibration.

How many revolutions per mile does each size do?

205/55R16 turns 811 revs per mile. 205/60R16 turns 785 revs per mile. Taller tyres turn fewer times per mile, which lowers effective final-drive ratio.

What's the sidewall height difference?

205/55R16 has a sidewall of 113 mm (4.44 in). 205/60R16 sidewall is 123 mm (4.84 in). Lower-profile sidewalls give sharper steering response but less bump compliance.

Is 205/60R16 a safe plus-size upgrade from 205/55R16?

A plus-size upgrade is considered safe when overall diameter stays within ±3% — here the difference is 3.2%. This swap is outside the typical ±3% safe range and may require speedometer recalibration or affect ABS / traction control behaviour.

Tire size comparison

205/55R16 vs 205/60R16

Overall diameter, sidewall, revs per mile, and speedometer error — 205/60R16 is the taller tire, with a 3.2% speedo delta when swapping.

205/55R16

24.88in

632 mm overall diameter

205/60R16

25.69in

652 mm overall diameter

Diameter Δ

0.81 in

Speedo error

3.2%

205/55R16 revs/mi

811

205/60R16 revs/mi

785

Outside the typical ±3% safe plus-size band — you may want speedometer recalibration, and this change can affect ABS or traction control behaviour.

Full spec

Side by side

Metric	205/55R16	205/60R16
Section width	205 mm	205 mm
Aspect ratio	55	60
Wheel diameter	16″	16″
Sidewall height	113 mm	123 mm
Overall diameter	24.88 in (632 mm)	25.69 in (652 mm)
Circumference	78.16 in	80.69 in
Revolutions / mile	811	785

Other comparisons for these sizes

185/65R14 vs 205/55R16 195/65R15 vs 205/60R16 195/60R15 vs 205/55R16 205/65R15 vs 205/60R16 205/55R16 vs 215/50R17 205/55R16 vs 205/50R17 205/55R16 vs 225/45R18 205/60R16 vs 215/55R17 205/60R16 vs 215/60R16 205/60R16 vs 225/60R16

FAQ

Frequently asked

What is the diameter difference between 205/55R16 and 205/60R16?: 205/55R16 has an overall diameter of 24.88 inches (632 mm). 205/60R16 is 25.69 inches (652 mm). That's a 0.81 inch (21 mm) difference — 205/60R16 is taller.
Will 205/60R16 cause speedometer error on a car fitted with 205/55R16?: Swapping 205/55R16 for 205/60R16 produces a speedometer error of about 3.2%. Your speedometer will read lower than your actual speed — a 60 mph indicated reading is really 61.9 mph. Anything under 3% is usually acceptable without recalibration.
How many revolutions per mile does each size do?: 205/55R16 turns 811 revs per mile. 205/60R16 turns 785 revs per mile. Taller tyres turn fewer times per mile, which lowers effective final-drive ratio.
What's the sidewall height difference?: 205/55R16 has a sidewall of 113 mm (4.44 in). 205/60R16 sidewall is 123 mm (4.84 in). Lower-profile sidewalls give sharper steering response but less bump compliance.
Is 205/60R16 a safe plus-size upgrade from 205/55R16?: A plus-size upgrade is considered safe when overall diameter stays within ±3% — here the difference is 3.2%. This swap is outside the typical ±3% safe range and may require speedometer recalibration or affect ABS / traction control behaviour.