The Hit Me Hard And Soft tour, named after her latest record, begins with a North American leg in September in Quebec, Canada.
The dates in the US and Canada run until December, before the 22-year-old US singer heads to Australia in February 2025.
She will play four concerts each in Brisbane, Sydney and Melbourne ahead of her European dates starting in April in Stockholm.
Eilish will then play Glasgow's OVO Hydro arena from July 7 to July 8 next year before six dates at London's O2 Arena from July 10.
Fans are encouraged to take "sustainable transport" during the tour, the announcement from Live Nation said.
Eilish also continues to partner with the plant-based food organisation Support + Feed and environmental non-profit organisation REVERB.
The concerts will reduce "greenhouse gas pollution, decreasing single-use plastic waste, supporting climate action, and updating concession offerings to promote and encourage plant-based food options with Support + Feed".
Eco-Villages from REVERB are also set to be put up in two locations during each show and there will be plant-based food drives, with Support + Feed and fans, to gather goods to distribute to local communities.
The third studio record of Eilish comes out on May 17 and her website says the new body of work should be listened to chronologically as it "hits you hard and soft both lyrically and sonically, while bending genres and defying trends along the way".
The album cover features the double Oscar-winner on her back underwater with a door open above her.
Eilish's last album was 2021's Happier Than Ever, and her debut record When We All Fall Asleep, Where Do We Go? was released in 2019.
Earlier this year, she won a best original song Oscar gong for Barbie song What Was I Made For? at the Academy Awards.
It follows on from her picking up the same prize for No Time To Die, from the James Bond film of the same name.
General ticket sales for the tour open on Friday.
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