Meeting Duration Calculator Formula
Understand the math behind the meeting duration calculator. Each variable explained with a worked example.
Formulas Used
Duration
duration_hours = duration_min / 60Total Person-Hours
total_person_hours = duration_min / 60 * attendeesMeeting Cost
meeting_cost = duration_min / 60 * attendees * avg_hourlyVariables
| Variable | Description | Default |
|---|---|---|
start_hour | Start Time (24hr) | 10 |
start_min | Start Minutes(min) | 0 |
end_hour | End Time (24hr) | 11 |
end_min | End Minutes(min) | 30 |
attendees | Number of Attendees | 5 |
avg_hourly | Avg Hourly Rate per Attendee(USD/hr) | 50 |
duration_min | Derived value= (end_hour * 60 + end_min) - (start_hour * 60 + start_min) | calculated |
How It Works
How to Calculate Meeting Cost
The true cost of a meeting is the duration multiplied by the number of attendees and their average hourly compensation.
Formula
Duration = End Time - Start Time (in hours)
Meeting Cost = Duration x Attendees x Average Hourly Rate
Worked Example
A meeting from 10:00 to 11:30 with 5 attendees averaging $50/hr.
- 01Duration = (11:30 - 10:00) = 90 minutes = 1.5 hours
- 02Person-hours = 1.5 x 5 = 7.5 hours
- 03Meeting cost = 7.5 x $50 = $375.00
Frequently Asked Questions
Why calculate meeting costs?
Understanding the financial cost of meetings encourages efficiency. A 1-hour meeting with 10 people at $60/hr costs $600, motivating tighter agendas.
What hourly rate should I use?
Use the fully loaded cost (salary + benefits) divided by annual work hours, or a rough estimate. Benefits typically add 20-30% to base salary.
How can I reduce meeting costs?
Invite only essential attendees, set clear agendas, keep meetings short, and consider async alternatives like emails or recorded updates.
Ready to run the numbers?
Open Meeting Duration Calculator