Budget Calculator
Enter your monthly income and expenses to get an instant budget breakdown. See how your spending compares to the 50/30/20 rule — 50% needs, 30% wants, 20% savings. Free, no signup.
Monthly Expenses
How it works
This budget calculator runs entirely in your browser — no data is sent to any server. Simply fill in the fields above and the result updates instantly. You can copy the output with the copy button provided.
Frequently Asked Questions
What is the 50/30/20 budget rule?
The 50/30/20 rule divides your after-tax income into three buckets: 50% for needs (rent, food, utilities), 30% for wants (dining out, entertainment), and 20% for savings and debt repayment. It's a simple framework popularized by Senator Elizabeth Warren.
How do I use this budget calculator?
Enter your monthly take-home income and list your monthly expenses by category. The calculator instantly shows your surplus or deficit, and how your spending compares to the 50/30/20 guideline.
What counts as a 'need' vs a 'want'?
Needs are essential expenses you can't live without: rent/mortgage, groceries, utilities, insurance, and minimum debt payments. Wants are lifestyle choices: restaurants, subscriptions, hobbies, vacations.
How much should I save each month?
The 50/30/20 rule recommends saving at least 20% of your take-home pay. If that's not possible, start with any amount — even 5–10% — and increase it over time as you cut discretionary spending.
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