The BBC has a global weekly reach of 308 million across all platforms

"Figures reveal the BBC has a weekly global audience of 308 million people. This represents the combined measured reach of international BBC content – both news and entertainment – for the year 2014/15 and is the first time this figure has ever been measured in this way.
In 2013 Tony Hall, Director General of the BBC, set a target of 500 million for the BBC’s global reach for 2022.
The figures – the BBC Global Audience Measure (GaAM) – reveal that the BBC’s weekly global news audience, which is measured each year, has increased by 18 million people, or 7 per cent since last year, to a record-breaking 283 million.  This means that one in every 16 adults around the world uses BBC News.
For the first time, television (148m) overtook radio (133m) as the most popular platform for BBC international news, and it is also the first time since we tracked audiences for all three platforms – radio, TV and online (55m) – in English and 28 other languages – that they’ve all grown in the same year.
The BBC World Service’s audience has increased by 10 per cent in its first year of licence fee funding and now stands at 210m, with the biggest boost coming from new World Service TV news bulletins in languages other than English."

Source:  Advanced Television, 22nd May 2015