Length of Service Calculator

How to use the length of service calculator

Pick your start date and the date you want to measure to. The calculator shows your length of service as years, months and days, along with the total number of months and total days.

Length of service is commonly used to work out statutory redundancy pay, notice entitlements, holiday accrual and service awards.

This is a calendar calculation. Employment law and your contract govern how continuous service affects specific rights and benefits.

Frequently Asked Questions

How is length of service calculated?

It measures the calendar time from your start date to the as-of date and breaks it into exact years, months and days, accounting for the varying number of days in each month.

What date should I use as the end date?

Use today to see your current service, or set a future or past date — for example your next work anniversary or a leaving date — to measure service to that point.

Does length of service affect my employment rights?

Often, yes. Continuous service can affect statutory redundancy pay, notice periods, the right to claim unfair dismissal and other entitlements, but the precise rules are set in law and in your contract.

What counts as continuous employment?

Continuous employment generally means working for the same employer without a qualifying break. Some absences, such as sickness, holiday or maternity leave, usually do not break continuity. Your employer and contract determine the details.

Is length of service the same as total work experience?

Not necessarily. Length of service usually means time with a single employer, while total work experience spans your entire career across all jobs.