If you are a Gurkha on the AFPS 05 or AFPS 75 schemes, there is a separate calculator for you.

This is based on a downloadable microsoft excel spreadsheet, which you'll be able to find at the URL provided.

To use the calculator you need:

pay details from your pay statement details of your armed forces pension scheme your date of enlistment details of your breaks in service or periods of unpaid service, including career breaks and detention - these don’t count as reckonable service for pension benefits details of all service including previous service your total reckonable service

The Ministry of Defence website provides information on military veteran policies, healthcare, housing, records, pensions and more.