"I'm really happy to be joining such a massive club like Liverpool," Konate, who has played 95 times for Leipzig, said in a statement.
"It's a really exciting moment for me and my family and I am really looking forward to meeting my new teammates, the staff and getting started on this new chapter.
"I have worked very hard for many years to get to this point, but I would like to say a big thank you to everyone at RB Leipzig and all the people I worked with there – the coaches, my teammates, the staff and especially the fans."
Konate will be involved with the France team in the knockout stages of the Under-21 European Championship which begin on 31 May.
Liverpool struggled to defend their Premier League title last season after an injury crisis in defence when they lost Virgil van Dijk and Joe Gomez to season-ending injuries early in the campaign. Joel Matip was also injured for long periods.
Liverpool manager Jurgen Klopp was forced to play midfielders such as Fabinho in defence and inexperienced defenders Ben Davies and Ozan Kabak were signed in the winter transfer window to try to plug the gaps.
"I'm really pleased we've been able to add a player of Ibrahima's quality to our squad and he is someone I've admired for a long time, ever since I first became aware of his potential when he was at Sochaux," Klopp said.
"After the problems we had with injuries in the centre-half position last season, there's no doubt it was clear it was an area of the team we needed to strengthen." (Reuters)

How Arsenal can win Premier League
NWFL player Ihotu regains freedom after N1.5m ransom
Onyeka doubtful for Bristol clash
D’Tigers drop to 53rd in world rankings
Commonwealth Games: Nigeria’s boxing trials final hold today
Don’t compare Itauma to Tyson — Lewis
Enyimba will bounce back – Awazie
128 boxers battle for 10 slots at 2026 C’wealth Games
Orbih returns for third stint as Nigeria badminton boss
Customs, Vipers shine at Ghana volleyball champs
Wheelchair basketball camp opens ahead C’Wealth Games qualifiers
Abinusawa wins double Ivy conference gold
Rangers International going, going . . . (63,592 views)
Amaju Pinnick: A cat with nine lives (54,917 views)
Second Term: Amaju Pinnick, Other NFF Heavyweights Home to Roost •How Pinnick Broke the Jinx (52,825 views)
Current issues in Nigerian sports: Matters arising (52,448 views)
Sports Development: Zenith Bank on the zenith (52,364 views)
Missing $150,000 IAAF Grant: Solomon Dalung’s Hide and Seek game (52,278 views)
Gov. Abdullahi Ganduje’s solid footprints, commitment to sports development in Kano State (52,153 views)
NFF Presidency: Pinnick, Maigari, Ogunjobi, Okoye in Battle for Supremacy (51,696 views)
Olopade, BET9A wave of revolution in NNL (50,867 views)
Commonwealth Games 2018: Shame of Muhammadu Buhari, Solomon Dalung (49,387 views)
Ibrahimovic’s Man U exit: Whose decision is it? And in whose interest? (47,781 views)
John Mikel Obi: Segun Odegbami’s Outrageous Call! (47,255 views)