UtilityLive

Age Calculator

Enter a date of birth to see exact age right now (or as of a chosen date).

Short answer

Counts whole calendar years, months and days between your DOB and today (or another chosen date). Also shown in weeks, days, hours and minutes.

Dates

Date of birth

As of (leave blank for today)

Fill in the fields above to see your result instantly.

Calculation method, coverage and version

Inputs used: Date of birth, As of (leave blank for today).
Calculation approach: The calculator applies the rules and assumptions described in “How it works” to the values you enter. Rounding can cause small differences from an official or provider calculation.
Coverage: Utility. UK nations, tax treatment, local rules and provider criteria can differ; check the official sources shown below before acting.
Content version: No page-specific review date is currently published. Treat the result as indicative and verify current rules independently.

Not included unless explicitly requested: personal circumstances not entered, provider discretion, future rule changes, professional fees and case-specific exceptions. Read the full calculator methodology.

How it works

We count whole calendar years first, then months, then days, borrowing from the previous month when needed (the standard 'age' convention used in the UK).

Worked example

DOB 1990-05-15, today 2026-04-30 → 35 years, 11 months, 15 days.

Who should use this

•Anyone curious about exact age
•Forms that need years and months
•Genealogy and history projects

Common mistakes

×Forgetting to use YYYY-MM-DD format
×Comparing across timezones — we use your local time

Frequently asked questions

Are leap years counted?▾

Yes — leap days appear naturally in the day count.

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