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Description
Age calculator: exact age from a date of birth in years, months, days, weeks, plus zodiac sign and next birthday countdown. Age Calculator – Exact Age by Date of Birth Age Calculator answers "how old, exactly?" in one click. Enter a date of birth in the popup and the age calculator instantly shows the precise age in years, months and days — plus running totals in days, weeks, months and hours, the day of the week the person was born, the western zodiac sign and a live countdown to the next birthday. Everything runs locally in your browser. The age calculator needs no account, no sign-up and no internet connection; the only permission is local storage, which remembers the last date of birth so the result is on screen the moment the popup opens again. And because the age calculator is a popup, not a website, the answer is always two clicks away from whatever page you are on — no tabs, no search, no ads. WHAT THE AGE CALCULATOR SHOWS 🎂 Exact age in years, months and days, computed on the real calendar 📅 Running totals in days, weeks, months and hours 🗓️ The day of the week the person was born, Monday to Sunday ⏳ A birthday countdown: days left, the weekday it falls on and a "turns N" note ✨ The western zodiac sign with its symbol 🔁 An optional second date, so it also works as a date calculator between two days 📋 A copy button that puts the whole result on the clipboard as tidy text 🌐 Interface localized into 33 languages HOW TO USE THE AGE CALCULATOR 1. Click the toolbar icon to open the popup. 2. Pick a date of birth in the date field. 3. Read the exact age, the totals, the zodiac sign and the countdown instantly. 4. Press "Copy result" to paste the full summary anywhere. Need to know how old someone was on a specific day — a wedding, a contract date, a school cut-off? Tick "Calculate age on a different date" and choose any day, past or future. The age calculator then behaves like a date calculator and reports the exact span between the two dates. WHY THE MATH CAN BE TRUSTED Date arithmetic is where quick tools usually cut corners. This age calculator does not: 1. Leap years follow the full Gregorian rule: 2000 was a leap year, 1900 was not. 2. A February 29 birth date is handled explicitly — in non-leap years the anniversary falls on March 1, and the day count stays consistent with that rule. 3. Real month lengths are used, so "one month" never silently means "30 days". 4. Calculations run on calendar fields, never on timezone-shifted timestamps, so a result does not change after midnight or travel. 5. One engine produces the exact age, the totals and the countdown, so every number on screen agrees with the others. WHO USES THIS AGE CALCULATOR • HR and administrative staff who check an applicant's age on a given date for documents and eligibility • Teachers and coaches verifying school or league cut-off dates from a birth date • Parents tracking a baby's age in days and weeks • Family-history fans working out an ancestor's exact age at a recorded event • Anyone watching for a milestone such as 10,000 days, 1,000 weeks or a half-birthday FAQ Q: How exact is the age calculator? A: To the day. It first counts whole calendar years and months, then the leftover days, so the answer matches what a paper calendar would give. Q: What happens with a February 29 birth date? A: In leap years the real date is used; in other years the age calculator treats March 1 as the anniversary, the common civil convention. Q: Can it tell how old someone will be on a future date? A: Yes. Enable the second date field, pick the future day, and the age calculator shows the age — and the age in days — on that exact date. Q: Where does my date of birth go? A: Nowhere. The age calculator keeps the date only in your browser's local storage so the popup can restore it; nothing is collected, transmitted or shared. Q: Does it count down to the next celebration? A: Yes. The age calculator always shows how many days remain until the next birthday and which weekday it lands on, so a quick glance replaces a reminder. Age Calculator keeps a small, honest promise: open the popup, enter a date of birth, and read an exact, calendar-true answer — age in years, months and days, age in days and weeks, zodiac sign and the countdown to the next birthday — with one click to copy it all.