Employment Duration Calculator
Find your exact length of service from a joining date to today (or a last day of employment) in years, months, and days. Useful for tenure milestones, severance eligibility, and length-of-service awards.
Enter both a start date and an end date.
Next step: Joining Date Calculator
How it works
Enter your joining date and either today's date (for current employees) or your last day of employment. The calculator computes the calendar span in years, months, and days using the same engine as the Age Calculator and Date Duration Calculator—just applied to an employment start date instead of a birth date.
Total days and total weeks are also shown for HR systems and policies that measure tenure in days or weeks rather than years and months.
The optional “Include joining date” and “Include last day” settings control whether each boundary date counts toward the total, matching the Date Duration Calculator's inclusive/exclusive options.
Common uses
Tenure milestones, length-of-service awards, severance or pension eligibility thresholds, and resume or LinkedIn duration formatting.
Tenure milestones
Find your exact years of service for an anniversary award or recognition program.
Severance eligibility
Check whether length of service meets a policy's minimum tenure threshold.
Resume duration formatting
Get an exact years/months/days figure for a role's duration.
Related Business Time Calculators
The Business Time Calculators Guide explains when to use each deadline and due-date tool in this cluster—invoice due dates, contract terms, SLAs, business-day forward math, days remaining until a target date, and notice periods.
The Business Days vs Calendar Days Guide explains when weekends and holidays count and which day type applies to invoices, notice periods, SLAs, and contracts.
The Business Days Between Dates Guide explains how to count weekdays between two dates and when to use range, forward, or until-date calculators.
The Working Days Guide explains working day schedules, how they compare to business days, and common planning use cases.
The Net Payment Terms Guide covers Net 10 through Net 90, calendar vs business-day terms, and how to calculate invoice due dates before you open a calculator.
The Invoice Due Date Guide explains how to compute payment due dates from invoice dates and net terms, including weekend and holiday considerations.
The Contract End Date Guide explains how to calculate contract expiration dates, renewal reminders, and notice windows before expiry.
The Payroll Cutoff Dates Guide covers payroll cutoff deadlines, processing windows, and business-day planning for pay schedules.
The Notice Period Guide explains how to estimate notice end dates for employment, rental, contract, and vendor scenarios using calendar or business days.
The SLA Deadline Guide covers response and resolution SLAs, business-day vs hour-based clocks, and holiday handling for helpdesk and vendor agreements.
The Invoice Due Date Calculator turns invoice dates and net terms (such as Net 30) into a calendar due date, with optional weekend adjustment when a due date lands on Saturday or Sunday.
The Contract End Date Calculator finds a contract end date from the start date and term length in days, weeks, months, or years, and shows 30-, 60-, and 90-day renewal reminder dates.
The SLA Deadline Calculator adds hours, calendar days, or business days to a start date and time to produce a response or resolution deadline in UTC.
The Add Business Days To Date Calculator advances a start date by a number of business days, skipping weekends and optional US federal holidays. The Subtract Business Days From Date Calculator moves backward by the same rules when you need a date before a deadline.
The Business Days Until Date Calculator counts business days remaining until a target date from today or a custom start date, with calendar days remaining and optional US federal holiday exclusion.
The Notice Period Calculator finds a notice end date from a start date and length in days, weeks, or months—using calendar or business days—with planning reminders before the end date.
When your question is how many weekdays fall between two dates—not a single due date—use the Business Days Calculator or Working Days Calculator alongside these tools.
FAQ
- How do I calculate my length of service?
- Enter your joining date and either today's date or your last day of employment. The calculator shows the duration in years, months, and days, plus total days and weeks.
- How is this different from the Date Duration Calculator?
- Same underlying date-span engine—no new math—framed for employment tenure: a joining date and a last day (or today) instead of generic start and end dates.
- What if I'm still employed?
- Leave the last-day field at today's date (the default) to see your length of service so far.
Similar Tools
- Joining Date CalculatorFind your new job's joining date from your last working day plus a gap, adjusted onto a working day if needed.
- Retirement Date CalculatorFind the exact date you reach a target retirement age from your date of birth, with current age and time remaining.
- Notice Period CalculatorCalculate notice period end dates from a start date and length in days, weeks, or months (calendar or business days).
- Probation End Date CalculatorCalculate when a probation period ends from a joining date and length in days, weeks, or months (calendar or business days).
- Last Working Day CalculatorFind your actual last working day from a notice start date and notice period length, adjusted off weekends and optional US holidays.
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