Productivity Calculators
Interactive calculators that put a dollar number on the work you don't see: email time, meeting cost, inbox backlog. Free, no signup.
Email Cost Calculator
How much money does your email habit cost you per year? Plug in your hourly rate and weekly email time.
Open calculatorAI Assistant ROI Calculator
Calculate the exact return on investment of an AI assistant for your specific role and rate. See payback period and annual savings.
Open calculatorMeeting Cost Calculator
What does that recurring meeting actually cost? Attendees x duration x rate, plus the annual hit for weekly meetings.
Open calculatorInbox Zero Time Calculator
How many hours stand between you and inbox zero? Built-in handle-time benchmarks, plus what AI triage cuts it to.
Open calculatorAbout these calculators
These tools exist because most productivity decisions get made on intuition, not numbers. Should you cancel a weekly meeting? Hire an AI assistant? Declare email bankruptcy? Each calculator converts the abstract question into a concrete dollar figure you can actually act on.
Every calculation is grounded in published research — McKinsey on email time, Radicati on inbox volume, Gloria Mark at UC Irvine on context switching, Bain on meeting load. Methodology is on each page.