Tyre size calculator
Old Tyre Size
Tread
Width
Profile
Height
Wheel
Diameter
Overall
Tyre Diameter
355
345
335
325
315
305
295
285
275
265
255
245
235
225
215
205
195
185
175
165
155
145
135
mm
85
80
75
70
65
60
55
50
45
40
35
30
%
23
22
21
20
19
18
17
16
15
14
13
12
10
inches
inches
mm
New Tyre Size
355
345
335
325
315
305
295
285
275
265
255
245
235
225
215
205
195
185
175
165
155
145
135
mm
85
80
75
70
65
60
55
50
45
40
35
30
%
23
22
21
20
19
18
17
16
15
14
13
12
10
inches
inches
mm
Difference in Diameter: percentage =
% actual =
mm
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