Free Finance & Money Calculators
Take control of your personal finances with clinical precision. Compute take-home paycheck taxes, plan debt payoff strategies, model retirement timelines, and track net worth growth—all 100% private in your browser.
Net Worth Calculator
Calculate your total net worth by adding assets and subtracting liabilities.
ROI Calculator
Calculate return on investment and CAGR instantly.
Business Profit Calculator
Analyze your gross, operating, and net margins.
Rental Yield Calculator
Calculate gross and net property investment returns.
Grocery Price Inflation Tracker
Find out if a grocery item has gone up logically due to inflation, or if the markup is disproportionately high.
Savings Goal Calculator
Find out exactly how long it will take to reach any savings goal.
Inflation Calculator
Calculate the impact of inflation on any amount of money over time.
Break-Even Calculator
Find out how many units you need to sell to start making a profit.
Gold Price Calculator
Calculate the value of gold by weight and purity. Supports grams, tolas, and troy ounces.
GST Calculator
Calculate GST and get CGST/SGST breakdown instantly.
Currency Converter
Real-time mid-market exchange rates for global currencies.
Salary Calculator
Convert your annual salary to hourly pay.
Tip Calculator
Calculate tips and split the bill with friends.
Cost of Living Calculator
Estimate monthly expenses by city.
Time to Millionaire
Estimate how long it will take to reach your savings goals.
Canadian Paycheck
Estimate your take-home pay based on your Canadian province.
Baby First Year Cost
Calculate the true financial cost of your baby's first year.
Survival Calculator
How long can your savings last without an income?
Travel Budget Calculator
Estimate realistic travel expenses for any trip.
Cost of Raising a Child Calculator
Estimate the total cost to raise a child to age 18.
Marriage Cost Calculator
Estimate the total cost of your wedding.
Relocation Calculator
Estimate the cost of moving your home.
Education Cost Calculator
Estimate the cost of schooling or university.
Shopping Habit Calculator
Reveal the long-term cost of your shopping.
Coffee Cost Calculator
See how much your daily coffee habit costs over 1, 5, and 10 years.
Expense Leak Calculator
Find hidden money leaks draining your finances each month.
Food Delivery Cost Calculator
See the true annual cost of ordering food delivery regularly.
US Income Tax Calculator
Estimate your federal income tax and effective tax rate.
Mastering Your Personal Finance Strategy
Why Use Accurate Financial Modeling?
Financial decisions compounding over 5 to 30 years determine your financial independence. Whether calculating net pay after federal and state taxes, evaluating career break costs, or optimizing budget allocations using the 50/30/20 rule, exact mathematical clarity prevents costly compounding mistakes.
Privacy & Math First
Unlike bank portals or commercial loan brokers, Lion Calculator stores zero sensitive financial data on remote servers. All tax calculations, debt payoff models, and compound interest math execute locally inside your Web browser session.