Lockout Tagout Point Count Calculator

Work out lockout tagout point count instantly with clear inputs, formula shown and shareable results.

About Lockout Tagout Point Count Calculator

Lockout requires every energy source to be isolated at every point and every worker to have personal control over the isolation. Locking each point individually multiplies locks by workers and becomes impractical quickly. A group lock box holds the keys to the point locks and each worker fits a personal lock to the box, so the count becomes points plus workers.

Formulas

Individual method

Locks = isolation points x workers

Group lock box

Locks = isolation points + one personal lock per worker

Worked example

With the default values below, Lockout Tagout Point Count Calculator returns Total locks required of 14. Change any input above and every figure here is recalculated in your browser.

Inputs used

Energy sources to isolateminimum 1: 5
Isolation points per sourceminimum 1: 2
Workers requiring personal locksminimum 1: 4
Group lockout methodone of Group lock box used, Individual locks on every point: Group lock box used

Results

Total locks required: 14
Isolation points to lock: 10
Tags required: 10
Method applied: Group lock box — one lock per isolation point plus one personal lock per worker on the box

Step by step

1Values used
2Individual method
3Group lock box
4Total locks required= 14
5Isolation points to lock= 10
6Tags required= 10
7Method applied= Group lock box — one lock per isolation point plus one personal lock per worker on the box

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to whole numbers, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Preliminary estimate only. Energy isolation procedures must be developed for each machine and comply with the applicable lockout regulations.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Preliminary estimate only. Energy isolation procedures must be developed for each machine and comply with the applicable lockout regulations.

Frequently Asked Questions

How is the Lockout Tagout Point Count figure worked out?

Locks = isolation points x workers. Lockout requires every energy source to be isolated at every point and every worker to have personal control over the isolation.

Why must each worker have their own lock?

So that no one else can restore energy while that worker is exposed. A shared or supervisor-held lock removes the individual protection that is the entire point of the system.

What values do I need to enter?

This calculator takes 4 inputs: Energy sources to isolate, Isolation points per source, Workers requiring personal locks, Group lockout method. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.