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Understand the method before using any result. The details below describe the purpose and assumptions for this tool.
How the age calculator works
The age calculator helps you estimate results using the assumptions and values you provide. Review the formula and example before relying on the result.
Formula and assumptions
Age is the number of completed years between a birth date and a reference date.
Example
Enter a birth date and a date to calculate age on.
Important information
Results depend on the values, jurisdiction, date and assumptions you enter. Financial products, tax rules and medical recommendations may vary by location and change over time. Verify critical results with reliable sources.