u/KTL0629

Hi all!
How is everyone determining their annual expected spending in retirement? I know my expenses now but are you entering the amount including inflation?
For example, if I need 100k per year now and want to retire in 20 years do I need to be adjusting that 100k for inflation? I’m using some coastFIRE calculators and I know they adjust the growth of investments for inflation but does it also adjust your annual expenses?

Thank you!