0 Years, 0 Months, 0 Days
Your current age
Total Days Lived
0
Total Hours Lived
0
Total Minutes Lived
0
Total Seconds Lived
0
Next Birthday
-
Days Until Birthday
0
Precision: This calculator computes exact age using your input and accounts for leap years and the varying lengths of months. If you include a birth time and target time, the result will be precise down to the second.
Leap Years & Dates: Leap years and century rules (e.g., 1900 vs 2000) are handled automatically so day counts are accurate.
Time Zones: The tool calculates age based on the date/time values you provide in your local time. If you need cross-time-zone accuracy, convert to a single time zone before entering times.
Calculate For Any Date: Use the "Calculate Age On" fields to find your age on any past or future date (useful for planning, legal forms, or event countdowns).
- Enter your birth date: Choose the day, month, and year you were born.
- (Optional) Add birth time: If you know the hour and minute of birth, enter it for second-level precision.
- (Optional) Set "Calculate Age On": Leave empty to calculate your current age, or pick a specific date to calculate age at that moment.
- Click "Calculate My Age": Your age breakdown (years, months, days) and totals (days, hours, minutes, seconds) will appear below.
Example: Born on July 4, 1990 at 09:30 AM — entering this with today's date will show your precise age including hours and minutes. Selecting July 4, 2030 in "Calculate Age On" will show your age on that future birthday.
Use cases: verifying age for forms, planning milestone events, comparing ages for records, or curiosity.
Is this calculator accurate?
Yes — the calculator accounts for leap years and month length. If you enter birth time, results are accurate down to the second.
Does it account for time zones?
The calculator uses the date/time values you enter (assumed in your local time). For cross-time-zone precision, convert your times to one consistent time zone before entering.
Can I calculate age on a future date?
Yes — use the "Calculate Age On" fields to choose any date (past or future) and see your age at that moment.
Is my data stored?
No — this tool runs client-side in your browser and does not store or send your input to a server.
What if I don't know my birth time?
Birth time is optional. If unknown, leave it blank — the calculator will compute age using date precision (years, months, days).