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Age Calculator: How Old Am I? Or ... How Old Was I, How Old Will I Be, or When Will I Be?

Calculator Preferences
Age Calculator Sign
Age Calculator

This calculator will calculate your age in years, months, and days -- as of any date of your choosing. The calculator will also translate that age into how old you are in terms of months, weeks, days, hours, minutes, and seconds. Plus, the calculator will tell you how many days until your next birthday, and on what day of the week it will fall on. And finally, the calculator can even tell you on what date you will turn a certain age.

Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Date of birth:

Date of birth:

Select the month and day and enter the 4-digit year of your date of birth.

Age date:

Date to calculate age for:

Select the month and day and enter the 4-digit year of the date you would like to calculate your age for.

Future age:Future age:Optional future age:Optional: When will I be this age?

Optional: When will I be this age?

If you would like to know what date you will be a certain age, enter an age that is greater than your current age. Otherwise leave blank. Note that you can enter a decimal number (59.5, for example).

Age:Age:Age:Age:

Age:

This is your age as of the ending date you entered.

Months old:Months old:Months old:Months old:

Months old:

This is the number of months that have passed since your date of birth.

Weeks old:Weeks old:Weeks old:Weeks old:

Weeks old:

This is the number of weeks that have passed since your date of birth.

Days old:Days old:Days old:Days old:

Days old:

This is the number of days that have passed since your date of birth.

Hours old:Hours old:Hours old:Hours old:

Hours old:

This is the number of hours that have passed since your date of birth.

Minutes old:Minutes old:Minutes old:Minutes old:

Minutes old:

This is the number of minutes that have passed since your date of birth.

Seconds old:Seconds old:Seconds old:Seconds old:

Seconds old:

This is the number of seconds that have passed since your date of birth.

Days to bday:Days till bday:Days until your next birthday:Days until your next birthday:

Days until your next birthday:

This is the number of days until your next birthday.

Age :Age :Turn age :Date you will turn :

Date you will turn the entered age:

If you entered a future age in the top section of the calculator, this row will list the approximate date you will reach the future age.

If you would like to save the current entries and results to the device you are using, tap or click on the Data tab and then tap or click on the Save button. If you upgrade your Basic, Local Storage subscription to the Cloud Storage acess level, you can save multiple sets of entries for this calculator to the secure online database, which makes them accessable from any device.

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About

About the Age Calculator

This free online date calculator will calculate how old you are in years, months, and days for any ending date you enter, and tell you how old you are in months, weeks, days, hours, minutes, and seconds.

Plus, the built-in birthday calculator will also tell you how many days remain until your next birthday, and on what day of the week your next birthday will fall on.

And finally, the calculator can even tell you on what date you will turn a certain age (e.g., When will I be 59.5 years old?, When will I be 18?).

Note that if you would like to learn how to calculate age manually (subtract one date from another without having to use a calculator), please visit the Chronological Age Calculator that shows you how to determine the age of a person in years, months, and days as of a given test date.

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Instructions

How to use the Age Calculator

Step #1:

Select the month and day, and enter the 4-digit year of your date of birth. Or, if using this as an age difference calculator, enter the birth date of the oldest of the two persons on the first line.

Step #2:

Select the month and day, and enter the 4-digit year of the date you would like to calculate your age as of that date. Or, if using this as an age difference calculator, enter the birth date of the youngest of the two persons on the second line.

Step #3:

Optional: If you would like to know on what date you will turn a certain age, enter that age in the field provided.

Step #4:

Click the "Calculate Age" button and scroll down to view the results.

Saving Entries:

If your web browser supports Local Storage, you can save your entries to your web browser so won't have to start over on your next visit. Please note that your saved entries can only be retrieved from the same device and web browser you were using when you stored them. If you would like to access your saved entries from any device I invite you to subscribe to the Ad-Free Member Version.

To save your entries to your web browser, click or tap the Data tab in the Help and Tools section (mobile: top right of the main screen), select "New Data Record" from the drop-down menu, enter a name for the data record, and then tap or click the Save button.

To load previously saved entries, click or tap the Data tab and select the saved data record from the drop-down menu. You can then save any changes to your entries by simply clicking the Save button while the data record is selected.

To clear a named set of saved entries, click or tap the Data tab, select the saved data record from the drop-down menu, and then tap or click the Clear button.

Numbers and Decimals:

Only numeric characters (0-9 and decimal points) may be entered in numeric fields. Non-numeric characters (dollar signs, percent signs, commas, etc.) may cause calculation errors. If the field includes a grid icon, tapping the icon will open a popup keypad which will include only the characters allowed in the field. If your device keypad does not include a decimal point, use this popup keypad to enter decimal numbers where applicable.

Popup Tool Tips:

Tap the info (i) icons for a further explanation of each entry field (you can click [X] or outside of the pop-up tool tips to close them). A summary of these explanations, along with any additional term explanations, can also be found under the Terms tab.

Disclaimer:

Since I can't test for every possible combination of numbers, please be sure to double-check the results of this calculator yourself before considering them to be valid. If you do discover an issue with the calculated results, please report the issue using the feedback form located below the calculator.

Scrolling & Shrinking:

In order to scroll the calculator vertically you will need to swipe just outside of the calculator's dark-blue border, or use the window's far right-hand scroll bar, whichever is applicable to your device.

If the top section of the calculator becomes to tall for your viewport, tapping in the "Enter a problem..." field should reset the top section to its original height.

Disclaimer:

The Algebra Calculator is the only calculator on the site that I did not create myself. And since I did not create it, I don't have access to the code for fixing any issues you may be experiencing. So if you are having issues with the calculator, please visit the support page at Mathway.com for assistance.

Glossary

Fields, Terms, and Definitions.

Reset button:

Clicking the "Reset" button will restore the calculator to its default settings.

Pocket Calculator

Calculate any amounts needed to enter into calculator.

 

Data Management

Save and retrieve entries and notes (requires HTML5 compliant web browser).

Calculator Data

Calculator Data:

If you are using the latest version of your web browser software, this feature will allow you to save your calculator entries to your web browser's local storage in between visits. This means the calculator entries can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save data between devices you will need to subscribe to the Ad-Free Member Version.

Save: To save a new set of calculator entries, select "New Data Record" from the dropdown list, enter a nickname for the data record, then click the "Save" button.

Load: To load a previously saved set of calculator entries, simply select the name of the data record from the dropdown list.

Save Changes: To save changes to a set of previously saved calculator entries, be sure the name of the data record is selected, and then click the "Save" button.

Clear: To clear a saved set of entries, be sure the name of the data record is selected, and then click the "Clear" button.

Backup Data
My Notes:
Subscribe to the Cloud level of the Ad-Free Member Version to save your entries and notes to a secure online database, allowing you to access your saved entries from any device or web browser.

Sorry! The Save functions are bonus features reserved for those who allow ads to display on the page.

If you would like to use the Save features, please disable ad blocking for this website and refresh the page. Or you can choose to subscribe to the Ad-Free Member Version of the site.

Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.

 

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