Meeting Cost Calculator: How the Number Is Worked Out

A meeting cost calculator does one multiplication: the number of people in the room, multiplied by their loaded hourly cost, multiplied by the length of the meeting. The arithmetic is trivial. The useful part is deciding what to do with the answer, and being honest about the parts the formula cannot see, such as the preparation time, the interrupted work either side, and the decisions that did not get made because eight people were in a room instead.

The arithmetic

Cost per hour equals attendees multiplied by average loaded hourly cost. An eight-person meeting that runs 60 minutes consumes eight person-hours. If the average loaded hourly cost of those people is 50, the meeting consumed 400 of paid time, and the same meeting weekly for a year consumes 8 multiplied by 52, which is 416 person-hours, or about 52 working days.

The currency is beside the point. What matters is the ratio between the cost of the meeting and the value of its output, and expressing long-running meetings in person-hours or working days makes that ratio visible in a way that a per-meeting figure does not.

• Attendees - Everyone who is in the room or on the call for any part of it. Silent people are not free.
• Loaded hourly cost - Salary divided by working hours, then increased by employer costs. Using bare salary understates the number by roughly a quarter to a third.
• Duration - Scheduled length is the default, not the truth. A 60-minute slot that ends at 32 minutes costs 60 in the calculation unless you count the actual end.

Why loaded cost beats salary

Loaded cost adds the employer's side of tax and pension, equipment, software, office or desk space, and paid time off. That typically lands between 1.25 and 1.4 times base salary. The exact multiplier depends on where you work and how benefits are structured, and you do not need precision to make the decision. Two significant figures are enough to show that a routine weekly meeting with six attendees is a real line in the budget.

If you do not have salary data, which is common, use a rough company-wide average and say so. A rough figure used consistently beats a precise figure that never gets calculated.

What the calculator leaves out

The formula counts attendance, not disruption. If the meeting sits at 10am and fragments the only deep block in the day, the true cost includes the attention residue for everyone who had to stop mid-task, plus the reorientation time afterwards. Interruption research suggests that cost is larger than the meeting itself for people in the middle of hard work.

It also leaves out preparation and follow-up, travel between sites, and the opportunity cost of the work that did not happen. Because of that, a calculated meeting cost is a floor rather than a total. Treat it as a minimum you can prove, which is usually enough to change behaviour.

Turning the number into a decision

The simplest test for a recurring meeting is whether it produces a decision, a document or a resolved blocker each time it runs. If you cannot name what last week's session produced, the meeting is a habit with a calendar invite, and habits are worth interrogating once a quarter.

A second test is format. Could this be a written update read asynchronously, with synchronous time spent only on the parts that need argument? A third is length. Default calendar tools offer 30 and 60 minutes, so meetings drift to 60 because that is the button that existed, not because the agenda needs it. A 25-minute or 45-minute box forces trimming and leaves transition time. If a meeting must exist, cutting its length is the cheapest saving available, because it does not require anyone to lose their seat at the table.

Scripts for cutting the load

Declining has to be specific or it reads as avoidance. A working version: 'I cannot add this to my week without dropping X. If the meeting needs a decision from me, I can review the document and send comments before Thursday. If it needs me live, tell me which 20 minutes and I will join for those.' The second half is what makes the first half credible, and it also shortens the meeting for everyone else.

For a standing meeting you run, the edit is direct: 'We are keeping this to 25 minutes this month. Agenda is two items, both have a decision question attached, and anything that cannot be decided gets an owner and a date.' Cutting attendees works the same way. Ask who is a decision maker, who is an information source, and who is there by default. The third group is usually the largest, and telling them the notes will reach them is not a demotion.