Age Calculator
Calculate exact age in years, months, days, and even hours from birthdate.
Precise age calculator that tells you exactly how old you are in years, months, days, hours, minutes, and seconds. Also calculates time until next birthday.
Understanding the tool
About Age Calculator
An age calculator compares a date of birth with another date and calculates the elapsed calendar age. It is more precise than simply subtracting the two years.
How to use this tool
Enter the date of birth and the date on which you want to calculate the age. The tool works with the actual calendar dates and reports the result in years, months and days.
A simple example
Before you use the result
Check that you have entered the values in the correct units and that the question you are answering matches the tool you selected. A calculator can produce a precise answer to the wrong question just as easily as the right one.
For important decisions
Use the result as a helpful calculation or estimate. Where money, tax, contracts, compliance or other high-impact decisions are involved, confirm the result against the relevant official information.
Features
- Multiple units (years/months/days)
- Next birthday countdown
- Zodiac sign display
- Life expectancy calculator
Frequently asked questions
Can I calculate age on a past date?
Yes. Enter the past date as the calculation date.
Do leap years matter?
Yes. Calendar calculations account for the actual dates and leap years involved.
KingToolsKit provides general-purpose tools and information. Check important results independently when they affect financial, legal, medical or other high-impact decisions.