DateCalc is a free, private, browser-based collection of date calculators — age calculator, days between dates, date arithmetic, and live countdown timer. No signup, no limits, no data sent to servers.
All calculations happen in your browser. Dates you enter are never sent to any server.
Results appear immediately. No loading, no waiting, no page reloads.
Full interface in English, Russian, Chinese, Arabic, Hindi, Portuguese, Spanish, and Thai.
No registration, no daily limits, no watermarks — ever.
Age Calculator — enter a date of birth and get the precise age in years, months, weeks, and days, plus how many days remain until the next birthday. Useful for legal age verification, medical records, and personal curiosity.
Days Between Dates — find the exact number of days, weeks, months, and working days between any two dates. Commonly used for project planning, contract duration, and deadline tracking.
Add / Subtract Dates — add or subtract any combination of days, months, and years from a starting date to find a target date. Useful for calculating due dates, expiration dates, and scheduling.
Countdown Timer — enter an event name and date to see a live countdown in days, hours, minutes, and seconds. Popular for weddings, vacations, exams, and retirement dates.
Most online date calculators are cluttered with ads, require account creation, or produce results that are off by a day due to timezone handling errors. We wanted a tool that was fast, accurate, private, and accessible in multiple languages — something useful for anyone from a student calculating their age to a project manager tracking a deadline.
Questions, feedback, or bug reports: igorkjc13992@gmail.com
Try DateCalc — it's free →