194 tools

Age Calculator

Exact age in years, months and days, plus next birthday.

Calculators

About the Age Calculator

The Age Calculator is a free online calculator from Toolbench. Exact age in years, months and days, plus next birthday. Enter your numbers and the answer — with the formula used — updates as you type.

Category
Calculators
Price
Free
Account
Not required
Runs
Entirely in your browser

How to use the Age Calculator

  1. Enter the values (date of birth, age on).
  2. Read the result — it updates as you type.
  3. Check the breakdown rows to see exactly how it was calculated.

Worked example

Date of birth1990-06-15
Age36 years, 3 months, 12 days
Total months435
Total weeks1,893 weeks, 2 days
Total days13,253
Total hours318,072
Born on aFriday

Formula: Age is counted in whole calendar years, then remaining months, then days — the same way people state their age — so leap years and month lengths are handled exactly.

Inputs

Date of birthDefault: 1990-06-15
Age onDate (defaults to today)

Privacy

Everything runs in your browser: what you type or paste is processed by JavaScript on your device, not on a server. If you are signed out, nothing is saved at all. If you sign in with Google, your inputs and settings are saved privately to your account so they sync across devices.

Frequently asked questions

Is the Age Calculator free?

Yes. Age Calculator is completely free with no sign-up, no usage limits and no watermarks.

Is my data private?

Yes. The Age Calculator processes everything in your browser. Signed out, nothing is saved; signed in, your inputs sync privately to your own account.

How does the age calculation work?

Age is counted in whole calendar years, then remaining months, then days — the same way people state their age — so leap years and month lengths are handled exactly.

Does it work on my phone?

Yes. Toolbench runs in any modern browser on desktop, tablet or phone — there is nothing to install.

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