This calculator can be used to calculate your current expenses, project your future expenses, and also show the impact of how much money you’re spending has on how long it will take you to reach financial independence or retire early.
In addition to using this calculator I also recommend tracking your expenses on an ongoing basis. Here’s the free expense tracker I use to manage my expenses in 10 minutes a month: Personal Capital
Expense Calculator – How Much Do You Spend? (Current or Future Projections)