Free financial calculators
Nine calculators covering retirement, net worth, loans, debt payoff, your paycheck, and budgeting. No signup, no email address, nothing saved to an account — every one runs entirely in your browser and the numbers disappear when you close the tab.
Retirement & net worth
Retirement Calculator
See how much you need to retire based on your age, savings, contributions, and expected returns, with year-by-year projections.
Net Worth Calculator
Add up your assets and subtract your debts for an itemized net worth breakdown.
Net Worth Percentile Calculator
See what percentile your net worth lands in for your age, based on Federal Reserve Survey of Consumer Finances data.
Loans & debt
Loan Payoff Calculator
Find your payoff date, total interest, and how much extra payments save you.
Loan Payment Calculator
Calculate the monthly payment and full amortization schedule for a mortgage, auto loan, or personal loan.
Debt Avalanche vs. Snowball
Compare the avalanche and snowball payoff methods with your own debts to see which pays off faster.
Paycheck & budget
Take-Home Pay Calculator
Calculate net pay after federal, state, and FICA taxes, for all 50 states and common pre-tax deductions.
Emergency Fund Calculator
Find out how many months of essential expenses your savings cover, and how much more you need for a full cushion.
50/30/20 Budget Calculator
Split your take-home pay into needs, wants, and savings using the 50/30/20 rule.
These calculators are single-purpose. PiggySize is the whole picture.
Every number above disappears when you close the tab. PiggySize tracks your income, bills, assets, and debts together, and keeps your retirement projection updated as your real numbers change — free to start, no credit card.