Go onto
https://www.expatistan.com/cost-of-living Use other sites too.
Have a look at what
your life will cost. If you go out a beer costs twice as much as Covent Garden but maybe you don't drink. The shocker for me is telecom, tv and entertainment. There are hidden costs to think about too. For instance I spend 60k every year shuttling family between the UK and UAE but have older kids and family that need a hand. Beware of some of the posters on here, they jump from left to right seat, 2 to 20 years seniority and troll continually in their posts. Do your own homework dispassionately and you will be fine. Just to add, Dubai is a great city when all is going well but when it goes badly, cross the wrong person; it can turn into a ball of chalk really quickly.