Finance Calculators
High-intent tools for investing, debt, budgeting, and compensation decisions.
19 tools available
Finance
50/30/20 Budget Calculator
Apply the 50/30/20 budgeting rule to your income and see how your actual spending compares to the guideline.
OpenFinance
Auto Loan Calculator
Estimate monthly car payments and total borrowing cost with down payment, trade-in, and rate inputs.
OpenFinance
Coast FIRE Calculator
Find out if your current savings will grow to cover retirement without any additional contributions.
OpenFinance
Compound Interest Calculator
Project how steady contributions and compounding can grow savings, investments, and retirement accounts over time.
OpenFinance
Debt Payoff Calculator
See how long it takes to pay off debt and how extra payments shorten the timeline and reduce interest.
OpenFinance
Dollar Cost Averaging Calculator
See how regular monthly investments grow over time and compare dollar cost averaging to lump-sum investing.
OpenFinance
Emergency Fund Calculator
Calculate your emergency fund target and see how long it will take to build at your current savings rate.
OpenFinance
FIRE Calculator
Calculate your Financial Independence, Retire Early target and see how many years until you can stop working.
OpenFinance
Freelance Rate Calculator
Calculate your minimum hourly and day rate to match your desired salary after taxes, expenses, and non-billable time.
OpenFinance
Investment Calculator
Model portfolio growth with recurring contributions, expected returns, and a clear long-horizon projection.
OpenFinance
Loan Calculator
Compare monthly payments and total borrowing cost across different loan amounts, rates, and repayment terms.
OpenFinance
Net Worth Calculator
Add up assets and liabilities to see your total net worth and how it breaks down by category.
OpenFinance
Percentage Calculator
Handle quick percentage changes, ratios, markups, discounts, and growth calculations from one reusable tool.
OpenFinance
Retirement Calculator
Estimate how much you need to save and whether your current contribution rate is on track.
OpenFinance
Salary Calculator
Convert hourly pay into annual salary, monthly income, and weekly earnings for job offers and budgeting.
OpenFinance
Savings Goal Calculator
Work backward from a target amount and date to figure out how much you need to save each month.
OpenFinance
Side Hustle Tax Calculator
Estimate self-employment tax, federal tax, and quarterly payments on your side hustle income.
OpenFinance
Tax Bracket Calculator
See your marginal and effective federal tax rates with a clear bracket-by-bracket breakdown.
OpenFinance
Tip Calculator
Split restaurant bills quickly and calculate gratuity totals without mental math or rounding mistakes.
Open