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 / 60

Total Person-Hours

total_person_hours = duration_min / 60 * attendees

Meeting Cost

meeting_cost = duration_min / 60 * attendees * avg_hourly

Variables

VariableDescriptionDefault
start_hourStart Time (24hr)10
start_minStart Minutes(min)0
end_hourEnd Time (24hr)11
end_minEnd Minutes(min)30
attendeesNumber of Attendees5
avg_hourlyAvg Hourly Rate per Attendee(USD/hr)50
duration_minDerived 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.

start_hour = 10start_min = 0end_hour = 11end_min = 30attendees = 5avg_hourly = 50
  1. 01Duration = (11:30 - 10:00) = 90 minutes = 1.5 hours
  2. 02Person-hours = 1.5 x 5 = 7.5 hours
  3. 03Meeting cost = 7.5 x $50 = $375.00

Ready to run the numbers?

Open Meeting Duration Calculator