4 free tools

Productivity calculators

Explore productivity tools with adjustable inputs, formulas, assumptions and worked examples. Choose a calculator below to see its method and limits.

Pomodoro Session Planner

Plan your work day with Pomodoro intervals, breaks, and focus blocks.

Calculate the real dollar cost of a meeting based on attendee salaries.

Estimate how long it takes to read any text or book.

Track how close you are to forming an automatic habit.