Work Experience Calculator
Resumes and job applications routinely ask for years of experience, but counting calendar dates by hand invites off-by-one errors around month and day boundaries — especially when the count spans a leap year. This calculator handles the calendar arithmetic precisely, breaking the span down into years, months, and days, and also converts it to a single decimal-year figure that's easier to drop into a resume line.
The Method
Duration = End Date − Start Date, expressed as years, months, and days
Total Days = End Date − Start Date (in days)
Total Years (decimal) = Total Days / 365.25
Total Days = End Date − Start Date (in days)
Total Years (decimal) = Total Days / 365.25
Dividing by 365.25 rather than 365 accounts for the extra day added roughly every fourth year by the leap-year rule, which keeps the decimal-year figure accurate over multi-year spans.
Where This Gets Used
- Writing an accurate resume — converting exact employment dates into a clean "X years, Y months" or decimal-year figure.
- Meeting eligibility thresholds — some job postings, promotions, or benefits require a minimum tenure stated in years; this confirms the exact figure as of today or any target date.
- Calculating current tenure for other formulas — the "years of service" figure this calculator produces is a direct input to severance and other tenure-based calculations.
How to Use This Calculator
- Enter Start Date.
- Optionally enter End Date — if left blank, the calculation uses today's date.
- Select Calculate to see the exact duration in years, months, and days, plus total days and a decimal-year figure.
Related Calculations
Use your tenure figure directly in the Severance Pay Calculator, or plan your exit date with the Notice Period Calculator.