Age calculator
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Date add / subtract
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Text & Productivity
Age & Date Calculator
Calculate exact age, total days, and future or past dates from a selected date. Free, fast, and built for a clean browser workflow.
About this tool
Calculate exact age, total days, and future or past dates from a selected date. It is built as a lightweight client-side utility so users can complete the task quickly on desktop or mobile.
How to use
- 1 Add a birth date and target date.
- 2 Review exact age and total days.
- 3 Use date add/subtract for future or past dates.
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FAQ
Can I calculate age on a future date?
Yes. Choose any target date after the birth date.
Can I subtract days?
Yes. Enter a negative number in the add-days field.
Does it handle leap years?
Date calculations use browser date logic, including leap years.