07/02/2013 Share this story Share on Facebook icon Share on Twitter icon Share on Pinterest icon Share on Google Plus icon Share on Linked In icon Share via Email icon

Relationship calculator: How am I related to...?

8b0f694e-f51b-4a73-b870-112763ed2c54

Although most of us are confident in working out the cousins, aunts, uncles and great-grandparents on our family tree, terms such as ‘second cousin once removed’ can be more of a challenge. Use our handy family relationship calculator to work out who’s who when exploring your ancestry.

What is a relationship calculator?

A family relationship calculator is a chart that allows you to calculate the relationship between two blood relatives by means of the ancestor they have in common.

Join the Family Tree community  
Follow us on facebook
Follow us on twitter
Sign up for our free e-newsletter

Discover Family Tree magazine

How to use your calculator

1. Using the downloadable chart imagine you meet someone and discover that you have the same great-grandparents. Firstly, visualise how that great-grandparent (the ancestor you both have in common) would describe you (as a great-grandchild in this example) and then find that term on the horizontal top line.

2. Next, move your finger down that column until you reach the person to whom you’re related on the vertical column (the other great-grandchild). The point where the two boxes meet shows your relationship to the other person; second cousins in our example here.

Once you become used to these kinship terms, they’ll soon become second nature and you might just find yourself in great demand at the next family gathering!

Second cousins & other family relationships

  • Second cousins – share the same great-grandparents
  • Third cousins – share the same great-great-grandparents
  • Second cousin once removed – the child or parent of a second cousin
  • Second cousin twice removed – second cousins with a two-generation difference
  • ‘Removed’ always indicates that two people are not in the same generation as each other

Back to News

07/02/2013 Share this story Share on Facebook icon Share on Twitter icon Share on Pinterest icon Share on Google Plus icon Share on Linked In icon Share via Email icon

Recent Updates

Tips on using the National Railway Museum archive to search for railway worker ancestors

The National Railway Museum (NRM) can help to bring your ancestor’s work on the railway to life. NRM ...


Rise & fall of East India Company revealed in new online archive

A newly digitised archive, available to researchers at the British Library and academic libraries and ...


Last surviving fireman to be reunited with World War II engine

The last surviving fireman to have worked during the Sheffield Blitz is to be reunited with the fire engine ...


Tunnel: The Archaeology of Crossrail exhibition opens at Museum of London Docklands - video report

A new exhibition showcasing fascinating finds unearthed by the Crossrail Project has opened today (10 ...


Other News

British engineer Alan Dower Blumlein to be posthumously honoured with a Grammy Award

Alan Dower Blumlein, the inventor of stereo sound recording, is to be posthumously granted a Technical Grammy ...


Family history timeline Twile has announced its service is now free of charge

Twile, the interactive timeline service, has today announced that its service is now free of charge for all ...


March issue subscriber club offers

The March issue subscriber club is packed full of new and exciting offers ...


The Half-Shilling Curate and the army chaplains of the Great War

Sarah Reay explores the role of the army chaplain in supporting the frontline soldiers of World War I. ...