285/65r20 to mm
285/65r20 to mm
h ... If any body has any info on this plz let me knw thanks !
Senior Member
Joined: Jul 2008
Posts: 995
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From: lost vegas
very hard to find.. actually had to look 1/2 way down the first page of google when i simply searched for tire circumference...
http://www.csgnetwork.com/tiresizescalc.html
http://www.csgnetwork.com/tiresizescalc.html
Senior Member
Joined: Jun 2006
Posts: 451
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From: Toronto, Canada
65% of that is the sidewall height
20" rims
285 x .65 = 185.25mm
20" x 25.4 = 508mm
508mm + 185.25mm + 185.25mm = 878.5mm diameter tire
878.5 x 3.14159...... = 2759.88mm circumference
Senior Member
Joined: Feb 2004
Posts: 10,390
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OP: don't fergit to factor in ~3-5% squish to arrive at yer final loaded value.