Total Voting Rights

1 June 2020

Centrica plc

('the Company')

Total Voting Rights

In accordance with the Disclosure Guidance and Transparency Rules ('the Rules'), we notify the market of the following:

As at 31 May 2020 the issued capital of the Company comprised 5,838,188,865 ordinary shares of 614/81 pence ('Shares'). This figure excludes 1,408,179 Shares held in treasury. All of the issued Shares carry voting rights of one vote per share.

The figure of 5,838,188,865 may be used by shareholders (and others with notification obligations) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Rules.

Alan McCulloch

Head of Group Secretariat, Centrica plc

01753 494000

Centrica plc is listed on the London Stock Exchange (CNA)Registered Office: Millstream, Maidenhead Road, Windsor, Berkshire SL4 5GD

Registered in England & Wales number: 3033654Legal Entity Identifier number: E26EDV109X6EEPBKVH76ISIN number: GB00B033F229