All companies with more than 250 employees in Great Britain are required to report their gender pay gap by 4 April. Using the figures reported so far, we’ve converted the gap into the number of days women effectively work for free
• This article was amended on 6 April 2018 because data for NWN Media, on which the article originally relied, was incorrect on the Government database. NWN reports a median gender pay gap of 85.2% in favour of women, not men.