Budget Calculator
Enter your monthly income and expenses by category. The calculator shows total expenses, surplus or deficit, savings rate, emergency fund targets (3 and 6 months of expenses), estimated months to reach them, and a 50/30/20 comparison so you can see how your needs, wants, and savings stack up.
Monthly budget
How this is calculated
Total expenses = sum of all expense categories. Net = income − total expenses. Savings rate = (surplus ÷ income)×100 when income > 0. Emergency fund targets: 3× and 6× monthly expenses. Months to reach = target ÷ surplus (when surplus > 0). For 50/30/20 we treat needs = housing + utilities + transportation + food + insurance + debt payments; wants = other; savings = surplus. We compare your percentages to 50% needs, 30% wants, 20% savings.
Use this tool for
Use it at month start to set targets or at month end to review. See if you're over in needs or wants and how close you are to a 3- or 6-month emergency fund. Pair with debt-payoff or savings-goal tools for next steps.
Common questions
How do I use this?
Enter each debt’s balance and rate, then see the projected payoff order and total interest.
