Cable Bundle Calculator

Quickly estimate the diameter of a wire bundle for your harnesses or assemblies. Select standard wires (OD's taken from SAE AS81044/12) or add custom wires with type, gauge, OD, and quantity. The tool calculates an approximate bundle size by factoring in each wire’s diameter and the space between them, including braids and jackets.

Note: Actual bundle diameter depends on wire lay length (typically 8-16 times the wire OD per WHMA recommendations) so treat this as a planning estimate, not a final measurement.