Office & Productivity Tools — Free Online

Convert between units of length, weight, volume, temperature, area, and speed instantly.

Full-featured scientific calculator with trigonometry, logarithms, and full keyboard support.

Find the exact number of days, weeks, months, and years between any two dates.

Calculate percentages, percentage change, tip amounts, and discounts in seconds.

Calculate your Body Mass Index (BMI) from height and weight in metric or imperial units.

Focus timer based on the Pomodoro Technique: 25-minute work sessions followed by short and long breaks.

A simple, fast checklist that saves automatically in your browser. No account needed.

Fill in your invoice details and print or save as PDF. No account, no watermark, no data sent.

Calculate your exact age in years, months, days, hours, and minutes from a birthdate.

Compare multiple time zones simultaneously and convert a meeting time across the world.

Enter a data set and get mean, median, mode, standard deviation, variance, and percentiles.

Calculate the real cost of a meeting based on hourly rates and number of participants. Live timer included.

Count business days between two dates, excluding weekends and public holidays for France, Belgium, Switzerland, and Canada.

Set a target date and see a live countdown in days, hours, minutes, and seconds. Save multiple countdowns in your browser.

Format numbers for any locale: thousands separators, decimal symbols, and currency display. Compare formats side by side.

Split a restaurant bill equally or by custom amounts. Add a tip percentage and see exactly what each person owes.