Tyre size calculator

Equivalent sizes for the 295/35 R21 tyre

Sidewall height 103 mmDiameter 740 mm Circumference 2324 mmRevolutions/km 430

Approved rim widths according to ETRTO: 10,5" – 10" – 11" – 11,5"

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
275/40 R20	-1.61 %	98.4 km/h	9,5" – 9" – 10" – 10,5" – 11"	38 models in stockFrom CHF 101.00 Summer9 Winter17 All-season12
315/35 R20	-1.54 %	98.5 km/h	11" – 10,5" – 11,5" – 12" – 12,5"	15 models in stockFrom CHF 110.00 Summer4 Winter8 All-season3
295/40 R20	+0.55 %	100.6 km/h	10,5" – 10" – 11" – 11,5"	18 models in stockFrom CHF 164.00 Summer9 Winter9
265/45 R20	+0.89 %	100.9 km/h	9" – 8,5" – 9,5" – 10"	27 models in stockFrom CHF 95.90 Summer10 Winter9 All-season8

Size	Difference	Actual speed at 100 km/h on the speedometer	ETRTO rims	Tyres in stock
325/30 R21	-1.54 %	98.5 km/h	11,5" – 11" – 12"	3 models in stockFrom CHF 292.00 Summer1 Winter2
285/35 R21	-0.96 %	99.0 km/h	10" – 9,5" – 10,5" – 11"	13 models in stockFrom CHF 235.00 Summer8 Winter5
295/35 R21 Your size	0 %	100.0 km/h	10,5" – 10" – 11" – 11,5"	23 models in stockFrom CHF 120.00 Summer7 Winter12 All-season4
265/40 R21	+0.76 %	100.8 km/h	9,5" – 9" – 10" – 10,5"	21 models in stockFrom CHF 202.00 Summer9 Winter8 All-season4

Size	Difference	Actual speed at 100 km/h on the speedometer	ETRTO rims	Tyres in stock
295/30 R22	-0.55 %	99.5 km/h	10,5" – 10" – 11"	2 models in stockFrom CHF 305.00 Winter2
265/35 R22	+0.58 %	100.6 km/h	9,5" – 9" – 10" – 10,5"	6 models in stockFrom CHF 267.00 Summer1 Winter5
275/35 R22	+1.54 %	101.5 km/h	9,5" – 9" – 10" – 10,5" – 11"	7 models in stockFrom CHF 218.00 Summer3 Winter4