📅 Tenure Calculator
Calculate exact tenure or years of service between a start date and an end date (or today).
What this calculator does
This calculator determines exact tenure, or length of service, between a start date and an end date (which can be today’s date), broken down into whole years, months, and days.
How it works
The calculator converts both dates to a day count and finds the difference, then divides that span into years (365.25 days per year, accounting for leap years on average), months, and remaining days.
Results are approximate around leap years and varying month lengths; for HR or payroll purposes, always confirm against your organization’s official records.
Last reviewed August 2026