muddychris300tdi Posted April 25, 2014 Share Posted April 25, 2014 Hi, I know this probably been covered before but I carn't find it. I trying to find the % deference between a stock discovery tyre and my 33 12.5 15's so I can work out correct mileage I'm covering. I can find a converter but it's just mm but can't convert to inches. Chris. Quote Link to comment Share on other sites More sharing options...
Landyrich Posted April 25, 2014 Share Posted April 25, 2014 If you look up 4x4 tyres.co.uk on there site you can put in the info as above and it will give you the differences and speedo difference, I would put a link on here - but I'm too technically challenged for that :0) Quote Link to comment Share on other sites More sharing options...
SPendrey Posted April 25, 2014 Share Posted April 25, 2014 http://tire-size-conversion.com/speedometer-calibration http://www.4x4tyres.co.uk/4x4_tyre_size_tool.php Quote Link to comment Share on other sites More sharing options...
muddychris300tdi Posted April 25, 2014 Author Share Posted April 25, 2014 Thanks, so from a 235 70 16 to a 33 12.5 15 is a 14% difference. So if my odometer says I've done 200 miles I've actually done 201.4. I was hoping it was a big more and I was getting more miles to my fuel than I am. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted April 25, 2014 Share Posted April 25, 2014 200 miles plus 14% is 228 miles is it not? Quote Link to comment Share on other sites More sharing options...
muddychris300tdi Posted April 25, 2014 Author Share Posted April 25, 2014 Yeah it is. Maths isn't my strong point. That's a little better. Quote Link to comment Share on other sites More sharing options...
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