Calculate your exact age.
Find your age in years, months, days, weeks, hours and minutes with a fast browser-based calculator. No sign-up and no AI required.
Age Calculator
Local browser calculationAll Calculators
Explore age, date, health, pregnancy, finance and life-cycle calculators.
Universal Chronology
Age Calculator
Calculate your exact age in years, months, days, weeks, hours and minutes.
→Age Difference Calculator
Find the exact age difference between two dates of birth.
→Age Gap Calculator
Calculate the precise age gap between two people.
→Birthday Calculator
Find your current age, next birthday and days until your next birthday.
→Time Between Dates
Calculate the time between two dates.
→Clinical & Academic
Chronological Age Calculator
Calculate chronological age from a date of birth and reference date.
→Pearson Age Calculator
Calculate chronological age for assessment use.
→Brigance Age Calculator
Calculate chronological age in years, months and days.
→Adjusted Age Calculator
Calculate an informational adjusted age using gestational age.
→Corrected Age Calculator
Estimate corrected age for premature birth.
→Developmental Age Calculator
Compare chronological age with an entered developmental age.
→Biological & Health
Biological Age Calculator
Estimate an informational biological-age score.
→Heart Age Calculator
Get an informational heart-age estimate.
→Metabolic Age Calculator
Get an informational metabolic-age estimate.
→Lung Age Calculator
Estimate an informational lung-age score.
→Mental Age Calculator
Compare an entered mental-development score with chronological age.
→Skin Age Calculator
Estimate an informational skin-age score.
→Fitness Age Calculator
Estimate an informational fitness-age score.
→Blood Pressure by Age
View general informational blood-pressure guidance by age.
→Pregnancy & Pediatric
Gestational Age Calculator
Calculate gestational age from the last menstrual period.
→Conception Calculator
Estimate conception date from a due date.
→Pregnancy Due Date Calculator
Estimate a pregnancy due date from the last menstrual period.
→Baby Age in Weeks
Calculate a baby's age in weeks.
→School Grade Finder
Estimate school grade from age.
→Finance & Professional
Retirement Age Calculator
Estimate years remaining until retirement.
→Social Security Age Calculator
Estimate years remaining until a selected claiming age.
→IRS RMD Age Calculator
Estimate an illustrative RMD age; verify current rules.
→Net Worth by Age Calculator
Review entered net worth by age.
→Years of Service Calculator
Calculate years, months and days of service.
→Nature & Life Cycles
Dog Age Calculator
Estimate dog human-equivalent age.
→Cat Age Calculator
Estimate cat human-equivalent age.
→Tree Age Calculator
Estimate tree age from circumference and growth factor.
→Planetary Age Calculator
Calculate your age on another planet.
→Domain Age Calculator
Calculate a domain's age from registration date.
→About Age Calculator
Age Calculator CTL is a lightweight collection of browser-based calculators. Core calculations run locally with JavaScript and do not require an account or paid AI API.
Privacy-first design
Basic date and number calculations are performed by the page in your browser. Do not enter sensitive information into a tool unless it is required.
Fast and responsive
Each calculator has its own clean URL, responsive layout, dark mode and accessible controls.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth and a reference date, then select Calculate Age.
Can I calculate age in days and weeks?
Yes. The result includes total days, weeks, hours and minutes.
Does the website require AI or a paid API?
No. The core tools use HTML, CSS and JavaScript in the browser.
Does it handle leap years?
The calculations use the Gregorian calendar through JavaScript Date handling, including valid February 29 dates.