Tyre size calculator

Equivalent sizes for the 215/40 R17 tyre

Sidewall height 86 mmDiameter 604 mm Circumference 1897 mmRevolutions/km 527

Approved rim widths according to ETRTO: 7,5" – 7" – 8" – 8,5"

To be approved, a tyre's diameter may differ by no more than 2 %. The vehicle's load and speed indices must also be respected.

Size	Difference	Actual speed at 100 km/h on the speedometer	ETRTO rims	Tyres in stock
215/45 R16	-0.63 %	99.4 km/h	7" – 7,5" – 8"	27 models in stockFrom CHF 62.90 Summer7 Winter5 All-season15
195/50 R16	-0.38 %	99.6 km/h	6" – 5,5" – 6,5" – 7"	29 models in stockFrom CHF 56.90 Summer14 Winter5 All-season10
225/45 R16	+0.84 %	100.8 km/h	7,5" – 7" – 8" – 8,5"	—
185/55 R16	+1.01 %	101.0 km/h	—	20 models in stockFrom CHF 56.90 Summer9 Winter4 All-season7
205/50 R16	+1.26 %	101.3 km/h	6,5" – 5,5" – 6" – 7" – 7,5"	25 models in stockFrom CHF 59.90 Summer13 Winter5 All-season7

Size	Difference	Actual speed at 100 km/h on the speedometer	ETRTO rims	Tyres in stock
205/40 R17	-1.30 %	98.7 km/h	7,5" – 7" – 8"	20 models in stockFrom CHF 62.90 Summer9 Winter4 All-season7
245/35 R17	-0.08 %	99.9 km/h	8,5" – 8" – 9" – 9,5"	—
215/40 R17 Your size	0 %	100.0 km/h	7,5" – 7" – 8" – 8,5"	34 models in stockFrom CHF 60.90 Summer14 Winter8 All-season12
195/45 R17	+0.59 %	100.6 km/h	6,5" – 6" – 7" – 7,5"	2 models in stockFrom CHF 114.00 Winter2

Size	Difference	Actual speed at 100 km/h on the speedometer	ETRTO rims	Tyres in stock
205/35 R18	-0.50 %	99.5 km/h	7,5"	—
215/35 R18	+0.67 %	100.7 km/h	7,5" – 7" – 8" – 8,5"	2 models in stockFrom CHF 114.00 Summer2
225/35 R18	+1.81 %	101.8 km/h	8" – 7,5" – 8,5" – 9"	8 models in stockFrom CHF 111.00 Summer7 Winter1