The UK's cost of living varies greatly by location, but a single person can expect to spend roughly £1,400 to £2,250 per month, with a family of four spending significantly more, around £3,800. Housing is the biggest expense, followed by transport and food. While the cost of living has risen due to factors like high energy and food prices, salaries are generally good, and you can find cheaper options by living outside of major cities or London.

https://www.ukcisa.org.uk/student-advice/working/student-work/