Wheelpro spoke length calculator
This is the calculator I use for my professional wheelbuilding, I wrote it many years ago and I use no other, this calculator is perfect - if it wasn't I would change it! It's sometimes referred to as the Hope Technology calculator, I have a long association with Hope and they asked if they could link to it from the Hope website, that's why you see mainly Hope hubs listed (plus a few of my own). But it's easy to measure hubs (and rims) which means this calculator is all you'll ever need.
Wheelbuilding book NEW 4th Edition
Why not top up your wheelbuilding knowledge by taking a look at this wheelbuilding book. It shows you the exact methods I use and gives you plenty more tips for working out spoke lengths.
More information : Wheelbuilding book.
Roger Musson