Free Online Financial Calculators
Accurate, up-to-date financial calculators for mortgages, loans, investments, taxes, and retirement — 100% free.
- Live real-time results
- No downloads needed
- Works on all devices
- 100% browser-based
⭐ Most Used Calculators Our top-rated tools, updated and optimized for accuracy
See how extra payments cut years off your loan with live results
Calculate dividend income, yield, and reinvestment growth instantly
Estimate your take-home pay after federal and state taxes on overtime
Loan Calculators
Pay off debt faster with a step-by-step payoff plan and payoff timeline
Loans
See how extra payments reduce your loan term and total interest paid
Overtime
Find out how long it takes to pay off your balance & how much interest you’ll pay
Salary
Investment Calculators
Enter your buy price, sell price, and shares to calculate exact profit, loss, and return
Most popular
Calculate annual dividend income, yield, and growth with or without reinvestment
Top rated
See how your money grows over time with daily, monthly, or annual compounding
Savings
Estimate current and future value of Series EE and I bonds based on issue date & rate
Lives rates
Tax Calculators
Calculate your 15.3% SE tax liability plus the deductible portion for Schedule SE
Most popular
Estimate your take-home pay after federal and state taxes on overtime earnings
Top rated
Add or remove sales tax from any amount using your state or custom rate
Savings
Calculate short-term and long-term capital gains tax owed on stocks & other assets
Lives rates
Retirement & Saving Calculators
Project your balance at retirement based on contributions and employer match
Most popular
Estimate tax-free growth based on contributions, income, and retirement
Top rated
Estimate your federal pension using service years and high-3 salary
Lives rates
Loan Calculators
Find out when you can drop private mortgage insurance and how much it costs
Retirement
Pay off debt faster with a step-by-step payoff plan and payoff timeline
Loans
See how extra payments reduce your loan term and total interest paid
Overtime
Find out how long it takes to pay off your balance and how much interest you’ll pay
Salary
View All Loan Calculators
Investment Calculators
Enter your buy price, sell price, and shares to calculate exact profit, loss, and return
Most popular
Calculate annual dividend income, yield, and growth with or without reinvestment
Top rated
See how your money grows over time with daily, monthly, or annual compounding
Savings
Estimate current and future value of Series EE and I bonds based on issue date & rate
Lives rates
View All Investment Calculators
Tax Calculators
Calculate your 15.3% SE tax liability plus the deductible portion for Schedule SE
Most popular
Estimate your take-home pay after federal and state taxes on overtime earnings
Top rated
Add or remove sales tax from any amount using your state or custom rate
Savings
Calculate short-term and long-term capital gains tax owed on stocks & other assets
Lives rates
View All Tax Calculators
Retirement & Saving Calculators
Project your balance at retirement based on contributions and employer match
Most popular
Estimate tax-free growth based on contributions, income, and retirement
Top rated
Estimate your federal pension using service years and high-3 salary
Lives rates
View All Retirement Calculators
Why Millions Use Multi Calculator for Financial Calculations
Built for speed, accuracy, and ease of use
Instant Results
Get instant answers as you type without without and reload requirements.
Pinpoint Accuracy
Every financial formula is verified against IRS guidelines and industry standards
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All calculations run locally in your browser. We never see, store, or share.
Works Everywhere
Fully responsive on phones, tablets, and desktops. No app download required.