Miscellaneous Calculators
Everyday tools, starting with an exact Age Calculator: completed years, months and days from any date of birth, leap-year accurate, plus totals in days and hours. Useful for school admissions, exams, retirement and any form that asks your age on a specific date.
What does the Age Calculator do?
It computes exact age from a date of birth — in years, months and days, and also as totals (a 25-year-old has lived roughly 9,131 days or about 219,000 hours). It handles leap years and month-length differences correctly, which is where mental arithmetic usually goes wrong: someone born on 29 February has had only about a quarter as many "real" birthdays as their age in years.
When is an exact age calculation useful?
Official forms and eligibility rules often need age on a specific date — school admission cut-offs, retirement dates, insurance premiums, visa applications and competitive-exam age limits all hinge on completed years, months and days as of a given date. The calculator lets you set both the birth date and the "as on" date to answer these precisely.
Frequently asked questions
Age is the number of completed years, months and days between the birth date and the target date. Count full years first, then full months, then leftover days — borrowing from the previous month when the day-of-month is smaller. This is why a calculator is more reliable than estimating by year alone.
About 10,957 days — 30 years × 365.2425 days (the average Gregorian year length, which accounts for leap years). The Age Calculator gives the exact figure for a specific birth date.
Yes. Leap years (every 4 years, except century years not divisible by 400) are counted correctly, including birthdays on 29 February, which are treated as completed on 1 March in non-leap years for most legal purposes.