Finance & Math
Premium calculators for loans, interest, investments, taxes, and retirement analysis.
Auto Loan Calculator
Calculate monthly payments, interest, and payoff schedule for car loans.
Compound Interest Calculator
See how your savings or investments grow with compound interest over time.
Debt Payoff Calculator
Determine payoff dates using Snowball or Avalanche debt reduction strategies.
Discount Calculator
Find the final price, savings amount, and tax for discounted items.
Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers.
Freelance Tax Calculator
Estimate self-employment tax obligations and net earnings.
Home Affordability Calculator
Estimate how much home you can afford based on your income and debts.
Inflation Calculator
Calculate buying power and price changes adjusted for historical inflation.
Margin Calculator
Compute cost, revenue, and gross profit margin percentage.
Markup Calculator
Calculate retail selling price and markup percentages from cost.
Mortgage & Payoff Calculator
Estimate monthly payments and see the impact of extra principal payments.
Percentage Calculator
Solve percent increases, decreases, fractions, and percentages of values.
Retirement Calculator
Plan retirement savings, contribution goals, and payout duration.
ROI Calculator
Measure return on investment and annualized ROI percentages.
Salary to Hourly Calculator
Convert annual salaries to equivalent hourly, weekly, and monthly rates.
Sales Tax Calculator
Compute total price including state or custom sales tax rates.
Take Home Pay Tax Calculator
Estimate federal income tax deductions and net take home salary.
Tip Calculator
Calculate tips and split bills instantly between dining parties.
Age Calculator
Find exact age in years, months, weeks, days, hours, and minutes.
GPA Calculator
Calculate high school or college GPA based on letter grades and credits.