How many cable lugs do I need?

Count the conductor terminations and multiply by the number of lugs required at each termination, then add the project-specific spare allowance.

Do two-ended cables need two lugs?

When both cable ends terminate with lugs, each termination generally needs its own lug. Use the actual termination schedule.

Does the calculator select the lug size?

No. Lug type and size must match the conductor, terminal arrangement, material and approved termination system.

Cable termination takeoff

Cable Lug Quantity Calculator

Convert conductor termination counts into a practical lug order quantity, with end counts and spare stock kept visible.

Termination schedule

Cable/conductor runs

Terminating ends per run

Lugs per termination

Spare allowance (%)

This counts quantity only. Separate conductor sizes or lug families should normally be scheduled separately because they are not interchangeable.

Enter run count, ends and lug-per-termination assumptions.

Lug requirement

Planning lug quantity——

—Terminations

—Base lugs

—Spare lugs

—Lugs / end

—

Formula and planning logic

Terminations = cable runs × terminating ends/run
Base lugs = terminations × lugs/termination
Planning lugs = ceiling(base lugs × (1 + spare ÷ 100))

Example

72 cable runs with two terminating ends produce 144 terminations. At one lug per termination, the base quantity is 144. With 8% spare, 156 lugs are planned.

Why end count matters

A cable may be counted as one run in a route schedule but require two physical termination components. Keeping the “ends per run” field explicit prevents that common procurement mismatch.

Frequently Asked Questions

Can a run have one termination?

Yes, for an intermediate or one-ended connection schedule.

Can lug quantity per termination be more than one?

Yes for assemblies where more than one lug component is intentionally required.

Should different conductor sizes be mixed?

No. Keep them as separate procurement lines unless the approved lug specification is genuinely the same.