Spoke calculator

Spoke Length Calculator 1.3

Arup's spoke length calculator based on Damon Rinard's SpocalcExpress.xls.

Calculates only one side. All values in mm.

No. of spokes

Effective Rim Diameter

Centre to Flange

Flange Diameter or PCD

Spoke hole diameter


Sign-up to our newsletter for exclusive offers, news and more.