Widest hand span
Who
Sultan Kösen
What
12 inch(es)
Where
Turkey (,London, GWR office)
When

The widest hand span is 12inches (30.48cm) belonging to Sultan Kösen (Turkey) and was measured in the Guinness World Records office, London, UK on 7 May 2010. His hand span was measured by Craig Glenday in the GWR office.