Formula Guide

    How to Calculate the Cost of a Meeting

    Every meeting has a cost — the sum of each attendee's hourly wage multiplied by the meeting duration. A 1-hour meeting with 8 senior engineers earning $120,000/year costs over $460 in direct salary cost alone, not counting opportunity cost and context-switching overhead. Making meeting costs visible helps organisations decide whether a meeting is worth holding and whether all invited attendees are truly necessary.

    Last updated: March 31, 2026

    The Formula

    Hourly Cost per Person = Annual Salary / 2,080
    Total Meeting Cost = Σ(Hourly Cost per Attendee) × Duration (hours)
    
    With overhead multiplier (benefits, office costs ≈ 1.3–1.5×):
    True Cost = Total Salary Cost × Overhead Multiplier
    Opportunity cost is not included in the salary formula — a senior developer's uninterrupted hour may produce $500+ in value even if their hourly rate is $100. Some meeting cost models multiply by 2–3× for this reason.

    Variable Definitions

    SymbolNameDescription
    DurationMeeting LengthTotal meeting time in hours (a 90-minute meeting = 1.5 hours)
    AttendeesNumber of AttendeesEach additional attendee multiplies the cost linearly
    OverheadOverhead MultiplierFactor accounting for benefits, office space, and other employer costs beyond base salary — typically 1.3–1.5×

    Step-by-Step Example

    A weekly 1-hour strategy meeting with 6 attendees: 2 at $120k/year, 2 at $90k/year, 2 at $70k/year.

    Given

    2 × $120k:$57.69/hr each2 × $90k:$43.27/hr each2 × $70k:$33.65/hr eachDuration:1 hourOverhead multiplier:1.4×

    Solution

    1. 1
      Sum of hourly rates: (2×57.69) + (2×43.27) + (2×33.65) = $269.22/hour
    2. 2
      Meeting cost (salary only): $269.22 × 1 hr = $269.22
    3. 3
      With overhead (×1.4): $269.22 × 1.4 = $377
    4. 4
      Annual cost (52 weeks): $377 × 52 = $19,604/year

    This recurring weekly meeting costs ~$377 per session and ~$19,600 per year in fully-loaded staff costs.

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    Common Mistakes to Avoid

    Using salary without overhead — employer costs are 30–50% above base salary; the true hourly cost per employee is higher than the salary formula suggests.

    Inviting people out of courtesy — every additional attendee adds directly to cost. Invite only those who are truly necessary.

    Not accounting for prep time — a 1-hour meeting with 30 minutes of pre-reading per attendee costs 1.5 hours per person, not 1.

    Treating all meetings as equally necessary — status update meetings with 10 people are often better replaced by a written async update that costs a fraction of the time.

    Frequently Asked Questions

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