[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"glossary:en":3,"tool-content:en:age-calculator":4,"published-tools-en":63},[],{"id":5,"documentId":6,"slug":7,"intro":8,"howTo":9,"longContent":10,"createdAt":11,"updatedAt":12,"publishedAt":13,"locale":14,"name":15,"faq":16,"examples":37,"category":38,"seo":47,"localizations":52,"metaTitle":49,"metaDescription":50},98,"xd2hcvnf43ebop67phqhic87","age-calculator","\u003Cp>This \u003Cstrong>age calculator\u003C\u002Fstrong> turns a birth date into an exact age in years, months and days, with the totals in weeks, days and hours. It also shows your next birthday and the days left. A second date field ages anyone at any point in the past or the future.\u003C\u002Fp>","\u003Col>\u003Cli>Pick your date of birth in the first field.\u003C\u002Fli>\u003Cli>Leave the second field empty for your age today, or set any other date.\u003C\u002Fli>\u003Cli>Read your exact age in years, months and days, plus the weeks, days and hours totals.\u003C\u002Fli>\u003Cli>Open the next birthday panel for the date, the weekday and the days remaining.\u003C\u002Fli>\u003C\u002Fol>","\u003Ch2>How does the age calculator work?\u003C\u002Fh2>\u003Cp>It counts the full years since your birth date, then the full months since your last birthday, then the days left over. A person born on January 15, 2000 is exactly \u003Cstrong>26 years, 6 months and 1 day\u003C\u002Fstrong> old on July 16, 2026. Read the same span another way and it becomes 318 months, 1,382 weeks, \u003Cstrong>9,679 days\u003C\u002Fstrong> or 232,296 hours.\u003C\u002Fp>\u003Cp>Every figure sits on real calendar dates rather than an average year. Divide by \u003Cstrong>365.25\u003C\u002Fstrong> and the result slips by a day or two near leap years, so this tool counts actual months and actual days instead.\u003C\u002Fp>\u003Ch2>How does the borrow method work?\u003C\u002Fh2>\u003Cp>Exact age is subtraction with borrowing, the same move you used for long subtraction at school. Take a birth date of June 20, 1990 and a target of January 1, 2030:\u003C\u002Fp>\u003Col>\u003Cli>Days: 1 minus 20 goes negative, so borrow a month. December holds 31 days, which makes \u003Cstrong>days = 1 + 31 - 20 = 12\u003C\u002Fstrong>.\u003C\u002Fli>\u003Cli>Months: 1 minus 6 minus the borrowed month is still negative, so borrow a year: months = 1 + 12 - 6 - 1 = 6.\u003C\u002Fli>\u003Cli>Years: 2030 minus 1990 minus the borrowed year leaves 39.\u003C\u002Fli>\u003C\u002Fol>\u003Cp>The answer is \u003Cstrong>39 years, 6 months and 12 days\u003C\u002Fstrong>. The tool runs it for any pair of dates the moment you pick them.\u003C\u002Fp>\u003Ch2>Which day milestones are worth tracking?\u003C\u002Fh2>\u003Cp>Round day counts make good excuses for a small celebration, and most pass unnoticed because nobody works them out. Your \u003Cstrong>10,000th day\u003C\u002Fstrong> lands near age 27.\u003C\u002Fp>\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>Milestone\u003C\u002Fth>\u003Cth>Reached around\u003C\u002Fth>\u003C\u002Ftr>\u003C\u002Fthead>\u003Ctbody>\u003Ctr>\u003Ctd>1,000 days\u003C\u002Ftd>\u003Ctd>2 years, 9 months\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>5,000 days\u003C\u002Ftd>\u003Ctd>13 years, 8 months\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>10,000 days\u003C\u002Ftd>\u003Ctd>27 years, 4 months\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>20,000 days\u003C\u002Ftd>\u003Ctd>54 years, 9 months\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>1,000,000 hours\u003C\u002Ftd>\u003Ctd>114 years\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftbody>\u003C\u002Ftable>\u003Ch2>Which age counts on official forms?\u003C\u002Fh2>\u003Cp>Schools, sports federations and government offices almost always read \u003Cstrong>completed years\u003C\u002Fstrong>: you stay 25 right up to the day you turn 26. A few settings differ. Pediatricians track babies in weeks and months for the first two years, and some older East Asian systems added a year at birth. This page reports completed time in every unit, which lines up with Western civil records.\u003C\u002Fp>\u003Ch2>How do leap years affect your age?\u003C\u002Fh2>\u003Cp>The Gregorian calendar drops in a February 29 on years \u003Cstrong>divisible by 4\u003C\u002Fstrong>, skips century years and restores the day every 400 years, so 2000 was a leap year while 1900 and 2100 are not. Those spare days shift your totals without touching your age in years.\u003C\u002Fp>\u003Col>\u003Cli>Someone born on February 29, 2000 turns 26 on March 1, 2026. That person has still celebrated only 6 real calendar birthdays: 2004, 2008, 2012, 2016, 2020 and 2024.\u003C\u002Fli>\u003Cli>From January 15, 2000 to January 15, 2026 the span crosses 7 leap days, so it holds \u003Cstrong>9,497 days\u003C\u002Fstrong> rather than the 9,490 a flat 26 times 365 suggests.\u003C\u002Fli>\u003Cli>Two people the same age in years can sit a day or two apart in days lived, depending on how many February 29ths fall between each birth date and today.\u003C\u002Fli>\u003C\u002Fol>\u003Cp>To count the exact days between any two dates, leap days included, use the \u003Ca href=\"\u002Fdate\u002Fdate-calculator\">date calculator\u003C\u002Fa>.\u003C\u002Fp>","2026-07-17T11:47:00.240Z","2026-07-17T12:52:33.998Z","2026-07-17T12:52:34.928Z","en","Age Calculator",[17,21,25,29,33],{"id":18,"question":19,"answer":20},557,"How is exact age calculated?","\u003Cp>Count the full years since the birth date, then the full months since the last birthday, then the days that remain. When a column goes negative, borrow from the next one up, exactly like long subtraction. The tool runs this on real calendar months, so \u003Cstrong>28, 29, 30 and 31 day months\u003C\u002Fstrong> all come out right.\u003C\u002Fp>",{"id":22,"question":23,"answer":24},558,"What is chronological age?","\u003Cp>Chronological age is the time that has actually passed since birth. Biological age is the separate estimate of how worn your body looks from health markers. A chronological age calculator needs only two dates and returns one exact figure.\u003C\u002Fp>",{"id":26,"question":27,"answer":28},559,"Why is my age in days not just years times 365?","\u003Cp>Leap years add a day every four years. At exactly 26 you have lived through 6 or 7 February 29ths, so your day count reads \u003Cstrong>9,496 or 9,497\u003C\u002Fstrong> rather than 9,490. The calculator counts the real days between both dates, leap days included.\u003C\u002Fp>",{"id":30,"question":31,"answer":32},560,"What if I was born on February 29?","\u003Cp>Your birthday only shows up in leap years. Other years, the calculator puts your next birthday on \u003Cstrong>March 1\u003C\u002Fstrong>, the day most jurisdictions treat as your legal step up in age. Either way your exact age in days stays the same.\u003C\u002Fp>",{"id":34,"question":35,"answer":36},561,"Can I calculate an age at a past or future date?","\u003Cp>Yes. Put any date in the second field, say a school cutoff or a retirement day, and the calculator returns the exact age on that date with the same year, month and day split.\u003C\u002Fp>",[],{"id":39,"documentId":40,"uid":41,"name":42,"tagline":43,"hubContent":44,"createdAt":45,"updatedAt":45,"publishedAt":46,"locale":14},18,"ehwrtpouixz8z6oll6q4uz1z","date","Time & Date","Ages, durations, dates and hours worked","\u003Cp>Date math is where spreadsheets quietly betray you: months have different lengths, years leap, shifts cross midnight. These calculators handle those edge cases explicitly. Compute an exact age, count the days between two dates or total a time card with breaks, and see the method under each result.\u003C\u002Fp>","2026-07-17T11:46:52.373Z","2026-07-17T12:01:48.621Z",{"id":48,"metaTitle":49,"metaDescription":50,"keywords":51,"metaRobots":51,"structuredData":51,"metaViewport":51,"canonicalURL":51},137,"Age Calculator: Exact Age in Years, Months and Days","Work out your exact age in years, months and days, see it in weeks, days and hours, and count down to your next birthday. Free, instant, no signup.",null,[53],{"id":54,"documentId":6,"slug":7,"intro":55,"howTo":56,"longContent":57,"createdAt":58,"updatedAt":59,"publishedAt":60,"locale":61,"name":62},160,"\u003Cp>Ce \u003Cstrong>calcul d’âge\u003C\u002Fstrong> transforme une date de naissance en âge exact en années, mois et jours, avec les totaux en semaines, jours et heures. Il affiche aussi votre prochain anniversaire et les jours restants. Un second champ donne l’âge de n’importe qui à n’importe quelle date, passée ou future.\u003C\u002Fp>","\u003Col>\u003Cli>Choisissez votre date de naissance dans le premier champ.\u003C\u002Fli>\u003Cli>Laissez le second champ vide pour votre âge aujourd’hui ou indiquez une autre date.\u003C\u002Fli>\u003Cli>Lisez votre âge exact en années, mois et jours, avec les totaux en semaines, jours et heures.\u003C\u002Fli>\u003Cli>Ouvrez le panneau anniversaire pour la date, le jour de la semaine et les jours restants.\u003C\u002Fli>\u003C\u002Fol>","\u003Ch2>Comment fonctionne le calcul d’âge ?\u003C\u002Fh2>\u003Cp>Il compte les années pleines depuis la naissance, puis les mois pleins depuis le dernier anniversaire, puis les jours qui restent. Une personne née le 15 janvier 2000 a exactement \u003Cstrong>26 ans, 6 mois et 1 jour\u003C\u002Fstrong> le 16 juillet 2026. La même durée se lit aussi 318 mois, 1 382 semaines, \u003Cstrong>9 679 jours\u003C\u002Fstrong> ou 232 296 heures.\u003C\u002Fp>\u003Cp>Chaque valeur repose sur de vraies dates de calendrier plutôt que sur une année moyenne. Diviser par \u003Cstrong>365,25\u003C\u002Fstrong> décale le résultat d’un jour ou deux autour des années bissextiles, donc le calculateur compte les mois et les jours réels.\u003C\u002Fp>\u003Ch2>Comment marche la méthode de l’emprunt ?\u003C\u002Fh2>\u003Cp>L’âge exact est une soustraction avec retenue, le geste de la soustraction posée apprise à l’école. Prenez une naissance le 20 juin 1990 et une date cible au 1er janvier 2030 :\u003C\u002Fp>\u003Col>\u003Cli>Jours : 1 moins 20 passe sous zéro, on emprunte un mois. Décembre compte 31 jours, ce qui donne \u003Cstrong>jours = 1 + 31 - 20 = 12\u003C\u002Fstrong>.\u003C\u002Fli>\u003Cli>Mois : 1 moins 6 moins le mois emprunté reste négatif, on emprunte une année : mois = 1 + 12 - 6 - 1 = 6.\u003C\u002Fli>\u003Cli>Années : 2030 moins 1990 moins l’année empruntée laisse 39.\u003C\u002Fli>\u003C\u002Fol>\u003Cp>Le résultat donne \u003Cstrong>39 ans, 6 mois et 12 jours\u003C\u002Fstrong>. L’outil le calcule pour n’importe quel couple de dates dès que vous les choisissez.\u003C\u002Fp>\u003Ch2>Quels caps en jours vaut-il la peine de suivre ?\u003C\u002Fh2>\u003Cp>Les comptes de jours ronds offrent de bons prétextes à une petite fête, même si la plupart passent inaperçus faute d’être calculés, à commencer par votre \u003Cstrong>10 000e jour\u003C\u002Fstrong>, qui tombe vers 27 ans.\u003C\u002Fp>\u003Ctable>\u003Cthead>\u003Ctr>\u003Cth>Cap\u003C\u002Fth>\u003Cth>Atteint vers\u003C\u002Fth>\u003C\u002Ftr>\u003C\u002Fthead>\u003Ctbody>\u003Ctr>\u003Ctd>1 000 jours\u003C\u002Ftd>\u003Ctd>2 ans et 9 mois\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>5 000 jours\u003C\u002Ftd>\u003Ctd>13 ans et 8 mois\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>10 000 jours\u003C\u002Ftd>\u003Ctd>27 ans et 4 mois\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>20 000 jours\u003C\u002Ftd>\u003Ctd>54 ans et 9 mois\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>1 000 000 d’heures\u003C\u002Ftd>\u003Ctd>114 ans\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftbody>\u003C\u002Ftable>\u003Ch2>Quel âge compte sur les documents officiels ?\u003C\u002Fh2>\u003Cp>Écoles, fédérations sportives et administrations lisent presque toujours les \u003Cstrong>années révolues\u003C\u002Fstrong> : vous restez 25 ans jusqu’au jour précis de vos 26 ans. Quelques contextes s’en écartent pourtant, comme les pédiatres qui suivent les nourrissons en semaines puis en mois pendant deux ans. Cette page affiche le temps révolu dans chaque unité, la convention de l’état civil.\u003C\u002Fp>\u003Ch2>Comment les années bissextiles influencent-elles votre âge ?\u003C\u002Fh2>\u003Cp>Le calendrier grégorien glisse un 29 février dans les années \u003Cstrong>divisibles par 4\u003C\u002Fstrong>, saute les années séculaires et rétablit le jour tous les 400 ans, si bien que 2000 était bissextile quand 1900 et 2100 ne le sont pas. Ces jours en plus déplacent vos totaux sans changer votre âge en années.\u003C\u002Fp>\u003Col>\u003Cli>Une personne née le 29 février 2000 fête ses 26 ans le 1er mars 2026. Elle n’a pourtant connu que 6 vrais anniversaires au calendrier : 2004, 2008, 2012, 2016, 2020 et 2024.\u003C\u002Fli>\u003Cli>Du 15 janvier 2000 au 15 janvier 2026, la période traverse 7 jours bissextiles : elle compte \u003Cstrong>9 497 jours\u003C\u002Fstrong> au lieu des 9 490 d’un simple 26 fois 365.\u003C\u002Fli>\u003Cli>Deux personnes du même âge en années peuvent se tenir à un ou deux jours d’écart en jours vécus, selon le nombre de 29 février entre chaque naissance et aujourd’hui.\u003C\u002Fli>\u003C\u002Fol>\u003Cp>Pour compter les jours exacts entre deux dates, 29 février compris, utilisez le \u003Ca href=\"\u002Fdate\u002Fdate-calculator\">calcul de jours entre deux dates\u003C\u002Fa>.\u003C\u002Fp>","2026-07-17T11:47:01.100Z","2026-07-17T12:54:38.167Z","2026-07-17T12:54:39.252Z","fr","Calcul d'âge",{"slugs":64},[7,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84],"average-calculator","cd-calculator","concrete-calculator","cursive-font-generator","date-calculator","fantasy-name-generator","final-grade-calculator","fraction-calculator","glitch-text-generator","gpa-calculator","grade-calculator","hex-converter","hours-calculator","interest-calculator","military-time-converter","roman-numeral-converter","password-generator","kg-to-lbs-converter","binary-converter","celsius-to-fahrenheit-converter"]