As the vaccine rollout success continues, a new campaign to raise the level further has been launched.
A total of 43,535,098 people have had two jabs (80.1%) and 48,292,811 have been given one dose (88.8%), according to government data.
Also, more than half of all teenagers aged 16 to 17 in England have already received their first dose.
This milestone has been reached just more than four weeks after the green light was given for this age group to be offered the vaccine.
It comes as a fresh campaign has been launched on social media to encourage more vaccine uptake among younger adults and children eligible for the jab.
Health Secretary Sajid Javid said: “It is a phenomenal achievement that four in five adults across the UK have now received both COVID-19 vaccines which have built a wall of defence around the UK and are allowing us to live safely with this virus.
“It is fantastic to see so many leading companies doing everything they can to help encourage young people to get the jab, from TikTok to MTV, as well as other household names who have already rallied behind the rollout like Uber.”