I used to be a toolmaker's apprentice about 12 years ago, and I know that there is a conversion formula to take say, a measurement of 1.875 thousandths, and convert it to metric by multiplying it times a metric conversion, which if I remember right, the #'s were something like 0.5242, or something like this, and you would multiply the fractional times the this number, and get a metric answer. I also would like to be able to go backwards and forwards too, meaning, I'd like to convert metric to good ol' American inches. The reason why, is I got an old 83 VT750C rim (rear), and I wanna use my manual vernier dial indicator calipers to measure the I.D. of the brake drum to see if it is still got some life left in it or not, before I spend any time getting it ready for powdercoating. SOo that means I gotta tale my measurement in inches and convert it to metric to see if I'm still in spec. Thanks peoples!!!