All Calculators
Explore 35 fast, private, and mathematically verified calculators. Everything runs 100% client-side in your browser with zero data collection.
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Personal Finance
13 toolsMortgage Calculator
Calculate your actual monthly payment, lifetime interest, and payoff acceleration with extra payments.
Home Affordability Calculator
Estimate the maximum purchase price and mortgage you can afford based on income, monthly debts, and down payment.
Debt Snowball Calculator
Calculate your debt payoff timeline with the debt snowball and avalanche methods to see when you'll become debt-free.
Auto Loan Calculator
Calculate exact monthly car loan installments factoring in down payment, trade-in, taxes, and fees.
Credit Card Payoff Calculator
See exactly how many months to become debt-free and how much total interest extra payments save.
Mortgage Refinance Calculator
Compare new terms against your current mortgage and determine your break-even month and lifetime savings.
Inflation Calculator
Calculate how the purchasing power of money has changed over time using historical U.S. CPI benchmark data.
APR to APY Calculator
Convert nominal interest rate (APR) to effective annual yield (APY) across any compounding frequency.
Amortization Calculator
Generate year-by-year principal vs. interest payment schedules and view remaining balances over time.
EMI Calculator
Compute precise equated monthly installments, total interest, and full repayment schedules across 8 currencies.
Rent vs Buy Calculator
Compare total net wealth over time between purchasing a home and renting while investing your down payment.
Savings Goal Calculator
Calculate the required monthly deposit to reach your target savings goal, or determine how fast your regular contributions get you there.
Take-Home Pay Calculator
Estimate your exact net paycheck after federal taxes, Social Security, Medicare, and state withholding.
Investing & Wealth
9 toolsCompound Interest Calculator
Watch your savings multiply with flexible compounding schedules and regular deposit additions.
Crypto Profit Calculator
Determine exact net profit, ROI percentage, and trading exchange fee deductions on crypto trades.
Stock Average Down Calculator
Calculate your blended share price, total capital invested, and break-even point across multiple stock buys.
Retirement Calculator
Project your retirement savings, investment returns, employer matching, and monthly retirement income.
Discounted Cash Flow Calculator
Estimate intrinsic company equity value per share using multi-stage discounted cash flow modeling.
SIP Calculator
Project long-term mutual fund SIP returns with optional annual percentage or fixed currency step-up options.
CAGR Calculator
Calculate compound annual growth rate, total capital gain, absolute return, and Rule of 72 doubling time.
ROI Calculator
Measure total return on investment percentage, annualized return, net profit, and investment multiple.
CD Calculator
Calculate certificate of deposit maturity payout, effective APY, and earned interest across any compounding schedule.
Business & Career
3 toolsBreak-Even Calculator
Calculate the exact unit sales and revenue required to fully cover fixed and variable business costs.
Margin vs Markup Calculator
Convert profit margin and cost markup instantly to price products accurately and protect gross margins.
Hourly to Salary Calculator
Convert hourly pay into equivalent annual salary, monthly, biweekly, and weekly wage equivalents.
Everyday Math & Shopping
4 toolsPercentage Calculator
Calculate percentage of a value, percentage differences, and percent increase or decrease instantly.
Tip Calculator
Calculate gratuity tips, total check amounts, and split restaurant bills evenly per person.
Discount Calculator
Find exact sale prices, markdown amounts, and net dollar savings on retail discounts.
Sales Tax Calculator
Add sales tax to retail purchases or back out pre-tax amounts from tax-inclusive totals.