Email Cost Calculator
How much is your email habit costing you per year? Plug in your numbers and see the annual hours, the dollar cost, and what an AI assistant recovers.
How much does email cost the average professional per year?
The average professional spends roughly 13 hours per week on email (McKinsey), which works out to 676 hours per year. At a $75 per hour fully-loaded rate, that is about $50,700 per year. For a consultant or attorney billing $300 per hour, the same time cost is over $200,000 per year in non-billable hours.
How do you calculate the dollar cost of email?
Multiply your hourly rate by hours per week spent on email, then multiply by 52 weeks. For salaried workers, divide annual salary by 2,080 (52 weeks at 40 hours) to get hourly. Add a 25-40% load for benefits and overhead to get the fully-loaded rate. For billable professionals, use the rate you charge clients, not the rate you net.
How much of an email cost can AI tools actually recover?
AI email assistants typically recover 5-8 hours per week through automated triage, drafts, and task extraction. At a $75 per hour rate, recovering 6 hours per week saves around $23,400 per year. Tools like alfred_ at $24.99 per month ($300 per year) generate roughly 75-100x return on the subscription cost at typical professional rates.
What counts as "email time" in this calculation?
Email time covers reading and triaging incoming messages, composing and sending replies, searching for past threads, filing and organizing, and the context-switch cost when an email pulls you out of focused work. The McKinsey 13 hours per week figure aggregates active email work but excludes the residual focus tax (about 23 minutes per interruption per UC Irvine research).
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How this calculator works
Annual hours = hours per week × weeks worked per year. Annual cost = annual hours × hourly rate. For salary input, hourly rate is derived as salary ÷ 2,080 (40 hours × 52 weeks), which is the standard fully-loaded estimate before benefits load. For billable input, the calculator uses the rate as entered — this is the opportunity cost (the revenue you forgo, not the wage you pay).
The alfred_ recovery line assumes 6 hours per week recovered, the midpoint of the 5-8 hour range typical for AI email assistants on high-volume inboxes. Return-on-investment uses the recovered annual dollar value divided by alfred_'s $300 per year cost.
Source data: McKinsey Global Institute for 13 hours per week and 28% of work time. Radicati Group for 121 emails per day. Gloria Mark at UC Irvine for the 23-minute interruption recovery cost (not captured here).
Frequently Asked Questions
Where does the 13 hours per week figure come from?
McKinsey Global Institute (2023) found knowledge workers spend approximately 28% of their week on email — roughly 13 hours of a 47-hour workweek. The Radicati Group separately reports 121 business emails received per day. Both numbers have been stable since 2018.
Should I use my gross salary or take-home for this calculation?
Use your fully-loaded hourly rate, not take-home. For salaried employees, take gross annual salary, divide by 2,080 (40 hours x 52 weeks) to get base hourly, then add 25-40% for employer-paid benefits, payroll taxes, and overhead. This is what your time actually costs your employer or your business.
Is the time savings from AI email tools real or marketing?
It is real but depends on volume. Studies of AI email triage tools (Superhuman, SaneBox, alfred_) consistently show 30-60% time reduction for high-volume inboxes (50+ messages per day). For lighter inboxes (under 20 messages per day), the absolute hours saved are smaller but the percentage reduction holds.
Does this calculator account for the interruption cost of email?
No. This calculator measures direct email handling time only. The interruption cost (Gloria Mark at UC Irvine measured 23 minutes of refocus time per context switch) is additional. The average professional checks email 15 times per day, which adds substantial indirect cost not captured here.
How does this compare to hiring a human executive assistant?
A human EA costs $60,000-$120,000 per year fully loaded and handles 90-95% of email management with training time. An AI assistant like alfred_ at $24.99 per month ($300 per year) handles 80-90% of the same work with no training time and no turnover. At typical professional billable rates, the AI option pays back its cost in days, not months.