Millennial budget calculator showing income, expenses, savings, and debt in a monthly budget overview
Millennial Budget Calculator
Enter income and expenses, select frequency, and this tool converts everything into monthly equivalents. Then it calculates surplus/deficit, savings rate, and debt-to-income.
Income (Monthly equivalents)
Use frequency to convert weekly/annual amounts into a monthly number.
Income source Amount Frequency Monthly $
Expenses (Monthly equivalents)
Be exhaustive. Subscriptions and “once-in-a-while” costs can quietly become big monthly numbers.
Expense Amount Frequency Monthly $
Tip If a cost hits you quarterly or twice a year, enter it as Annual so it’s captured correctly.
Results
This section updates automatically as you type.
Total Monthly Income
$0
Total Monthly Expenses
$0
Surplus / Deficit (Income − Expenses)
$0
Savings Rate (Savings & Investing ÷ Income)
0%
Debt-to-Income (Debt payments ÷ Income)
0%
Debt Payments (Monthly)
$0

Millennial money callouts (quick reality checks)

Add a few numbers above and you’ll see personalized notes here.

FAQ (Budget Basics)
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How does the calculator convert weekly or annual costs to monthly?
Weekly expenses are multiplied by 4.333 (52 weeks ÷ 12 months). Annual expenses are divided by 12.
What counts toward “Savings Rate”?
Anything you listed under 401(k), Roth IRA, Savings, and College Savings is treated as savings/investing.
What counts toward “Debt-to-Income” (DTI)?
The calculator totals payments in the Debt category (credit cards, personal loans, student loans). If you want to include housing (mortgage) in DTI too, tell me and I’ll add a toggle.
Is a “deficit” always bad?
A deficit simply means expenses exceed income for the month. Sometimes it’s temporary (moving costs, travel, medical bills). The goal is to identify the drivers so you can make a plan.
What’s a reasonable starting savings rate?
Many people start by aiming for a consistent number they can sustain. Even small automatic contributions can create momentum. This tool helps you see what’s realistic based on your current cash flow.
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Calculator Disclaimer

This budget calculator is provided for educational and informational purposes only. It is designed to help visualize income, expenses, savings, and debt using monthly equivalents, but it does not provide financial, tax, or investment advice.

Results are based entirely on the information entered and may not reflect real-world outcomes, changing economic conditions, or individual circumstances. Consider using this tool as a starting point for understanding cash flow rather than as a decision-making authority.

RetireCoast offers additional planning tools covering retirement, housing, budgeting, and starting a business. Explore the full collection in our Calculators Hub.