How to use it
The calculator turns a meeting into a single number: how much salary the organisation spends during the time the invite blocks out. Set the three inputs on the right and read the planned cost, or press Start meeting and let the counter run while you talk.
Set the inputs
Attendees is everyone who actually joins, including anyone who only listens. For the rate, pick whichever number you have to hand. Hourly rate takes a figure per person per hour. Annual salary takes a yearly figure and divides it by 2080 working hours, which is 40 hours a week across 52 weeks. Planned duration is the length of the calendar invite.
Read the four results
Total cost is what the planned meeting spends end to end. Per minute is the useful one for deciding whether an agenda item is worth another five minutes. Per attendee shows what each seat costs, which makes the case for trimming the invite list. Weekly, per year assumes the same meeting repeats 52 times and is usually the number that changes minds about a recurring slot.
Run it live
Start meeting anchors a timestamp and the money figure climbs from there in real time. Pause holds the total, Resume continues from the same point, and Reset clears it. The timestamp is stored in your browser, so a reload or a closed laptop lid does not lose the running total. Once you pass the planned duration the bar fills and an overrun badge shows what the extra time is costing.
A worked example
Eight people, an average loaded cost of $60 an hour, and a 45 minute invite. Eight people at $60 comes to $480 an hour, which is $8 a minute. Multiply by 45 minutes and the meeting costs $360, or $45 per attendee. Hold it every week and the year costs $18,720.
Share the numbers
Copy link builds a URL with the inputs attached, in the form people=6&rate=75&min=60. Anyone who opens it sees the same figures without retyping them, which is handy when you want to attach the cost to the meeting notes.