Personal Finance Calculators

Free, accurate calculators for every stage of your financial journey. All calculations are private and happen instantly in your browser.

Self-Employment Tax Calculator

Calculate your estimated Social Security and Medicare taxes for 1099 freelance income.

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Capital Gains Tax Calculator

Calculate your estimated federal capital gains tax on stocks, real estate, and crypto based on your holding period.

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Income Tax Calculator

Estimate your federal income taxes, effective tax rate, and take-home pay for the 2026 tax year.

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Rent vs Buy Calculator

Compare the true monthly costs of renting a home versus buying a house in today's market.

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Down Payment Calculator

Determine exactly how much cash you need to save for your target home price and see if you trigger PMI.

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Income-Driven Repayment (IDR) Calculator

Estimate your monthly federal student loan payment based on your discretionary income and family size.

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Student Loan Refinance Calculator

Compare your current student loan against a new refinance offer to calculate your lifetime interest savings.

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529 College Savings Calculator

Project your future education savings and calculate the potential tax-free growth of your 529 plan.

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Paycheck Budget Calculator

Plan your exact budget for every single paycheck. Divide your income into fixed expenses, savings, and guilt-free spending instantly.

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HYSA Growth Calculator

Compare a High-Yield Savings Account to a standard bank account and see how much free money you are leaving on the table.

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Sinking Fund Calculator

Determine exactly how much you need to set aside per month to hit your sinking fund target.

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Credit Utilization Calculator

Find out your credit utilization ratio instantly and see how much you need to pay down to boost your score.

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Personal Loan Calculator

Estimate monthly payments, total interest, and the true cost of any personal loan instantly.

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Bond Yield Calculator

Calculate the Current Yield and approximate Yield to Maturity (YTM) of your bonds to make smarter investment decisions.

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Dollar-Cost Averaging Calculator

Project your wealth growth by investing a fixed amount every month.

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Dividend Income Calculator

Estimate your passive income over time. Compare dividend reinvestment (DRIP) vs cash payouts.

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Stock Return Calculator (ROI & CAGR)

Calculate the total return and annualized growth rate (CAGR) of your stock investments, factoring in collected dividends.

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Emergency Fund Calculator

Find out exactly how much cash you need in your emergency fund based on your monthly expenses and risk comfort.

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Monthly Budget Calculator

Track your income and expenses to find your free cash flow and optimize your spending.

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50/30/20 Budget Calculator

Enter your income and instantly see how to split it into needs (50%), wants (30%), and savings (20%).

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Debt Snowball Calculator

List your debts, set an extra monthly payment, and see your payoff order, timeline, and interest saved.

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Credit Card Payoff Calculator

Calculate exactly how long it will take to escape credit card debt and how much interest you will owe.

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Compound Interest Calculator

See how your savings or investments grow exponentially with different rates, time horizons, and contribution amounts.

Savings Goal Calculator

Determine exactly how much you need to save monthly to hit a target goal by a specific date.

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Mortgage Payoff Calculator

Calculate how much time and interest you save by making extra principal payments on your mortgage.

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Retirement Savings Calculator

Project your retirement balance based on current savings, monthly contributions, and expected investment returns.

Loan Refinance Calculator

Compare your current loan vs a refinance offer. See monthly payment difference, breakeven point, and lifetime savings.

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Auto Loan Calculator

Calculate your monthly car payment and see exactly how much you will pay in interest over the life of the loan.

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CD Calculator

Calculate exactly how much interest your money will earn in a Certificate of Deposit. Compare different APYs and term lengths.

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Student Loan Payoff Calculator

Calculate your student loan amortization table and discover exactly how much time and interest you save by making extra payments.

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Home Affordability Calculator

Calculate exactly how much house you can afford based on your salary, monthly debts, down payment, and standard 28/36 banking DTI rules.

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Net Worth Calculator

Calculate your total household net worth instantly. Easily track liquid cash reserves, investment equity, real estate values, and overall debt ratios.

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Investment Return Calculator

Project your investment portfolio growth with compound interest, monthly contributions, and an inflation-adjusted value toggle.

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Self-Employed Retirement Calculator

Compare contribution maximum limits and immediate tax savings across SEP-IRA and Solo 401(k) accounts in 2026.

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401(k) Calculator

Project your retirement nest egg and see how much free money your employer match contributes over time.

Sarah Collins, CFPยฎ

Reviewed by Sarah Collins, CFPยฎ

Sarah is a Certified Financial Planner with over 10 years of experience helping families optimize their debt, savings, and investments. All MintlyHub calculators and guides are reviewed by our financial team for mathematical accuracy and fiduciary integrity.