Your money, figured out.
40+ free financial calculators for mortgages, debt payoff, retirement, investing, taxes, and more. Make smarter money decisions in seconds.
Most Popular Tools
Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and view a full amortization schedule.
Affordability Calculator
Find out how much house you can afford based on your income, debts, and down payment.
Card Payoff
See how long it will take to pay off your credit card and how much interest you'll pay.
Auto Loan
Calculate your monthly car payment including trade-in value and down payment.
Compound Interest
See how your money grows with compound interest over time, including regular contributions.
Retirement Savings
Project your retirement savings and see if you're on track for your desired retirement income.
401(k) Calculator
Project your 401(k) growth with employer matching and compound growth.
Salary Converter
Convert between hourly, weekly, biweekly, monthly, and annual salary.
Budget Calculator
Break down your income using the 50/30/20 budgeting rule.
Avalanche vs. Snowball
Compare the debt avalanche and debt snowball methods side by side to see which pays off your debts faster and cheaper.
ROI Calculator
Calculate your return on investment, net profit, and annualized (CAGR) return on any investment.
🏠 Home & Mortgage
7 calculators
Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and view a full amortization schedule.
Affordability Calculator
Find out how much house you can afford based on your income, debts, and down payment.
Refinance Calculator
Compare your current mortgage to a new loan to see if refinancing saves you money.
Home Equity Calculator
Calculate your available home equity and potential HELOC amount.
Rent vs. Buy
Compare the total cost of renting vs. buying a home over time.
Closing Costs
Estimate your closing costs when buying a home.
Property Tax
Calculate your annual and monthly property tax based on assessed value and local tax rate.
💳 Debt & Credit
9 calculators
Card Payoff
See how long it will take to pay off your credit card and how much interest you'll pay.
Debt Snowball
Use the debt snowball method to plan your payoff — smallest balance first for quick wins.
Debt Avalanche
Use the debt avalanche method — pay off highest-interest debt first to minimize total interest.
Loan Payoff
See how extra payments can help you pay off any loan faster and save on interest.
Personal Loan
Calculate monthly payments and total cost for a personal loan.
Card Interest
Calculate how much interest you'll pay on a credit card balance over a given period.
Minimum Payment
See how long it takes to pay off a credit card with only minimum payments.
Avalanche vs. Snowball
Compare the debt avalanche and debt snowball methods side by side to see which pays off your debts faster and cheaper.
Student Loan Payoff
See how long it will take to pay off your student loans, how much interest you will pay, and how much extra payments save you.
📈 Savings & Investing
6 calculators
Compound Interest
See how your money grows with compound interest over time, including regular contributions.
Investment Return
Calculate your return on investment (ROI) and annualized return.
Savings Goal
Calculate how long it will take to reach your savings goal with regular contributions.
Emergency Fund
Calculate how much you need in your emergency fund based on your monthly expenses.
CD Calculator
Calculate how much a certificate of deposit (CD) will be worth at maturity based on your deposit, APY, and term.
ROI Calculator
Calculate your return on investment, net profit, and annualized (CAGR) return on any investment.
🧓 Retirement
5 calculators
Retirement Savings
Project your retirement savings and see if you're on track for your desired retirement income.
401(k) Calculator
Project your 401(k) growth with employer matching and compound growth.
FIRE Calculator
Calculate your Financial Independence, Retire Early (FIRE) number and timeline.
Social Security
Estimate your Social Security benefit based on earnings and claim age.
RMD Calculator
Calculate your Required Minimum Distribution from retirement accounts.
💰 Income & Tax
5 calculators
Salary Converter
Convert between hourly, weekly, biweekly, monthly, and annual salary.
Paycheck Calculator
Estimate your take-home pay after federal and state taxes.
Income Tax
Estimate your federal income tax based on filing status, income, and deductions.
Self-Employment Tax
Calculate your self-employment tax (Social Security + Medicare) on freelance income.
Bonus Tax
Calculate withholding on your bonus or supplemental wages.
📊 General Finance
8 calculators
Budget Calculator
Break down your income using the 50/30/20 budgeting rule.
Net Worth
Calculate your net worth by listing your assets and liabilities.
Inflation
See how inflation affects purchasing power over time.
Cost of Living
Compare the cost of living between major US cities.
Break-Even
Find out how many units you need to sell to cover your costs, plus your break-even revenue and contribution margin.
Tip Calculator
Calculate the tip and split the bill evenly between any number of people in seconds.
Sales Tax
Add sales tax to a price or work backward to find the pre-tax amount from a total that already includes tax.
Currency Converter
Convert between world currencies using live, up-to-date exchange rates.
Smart money decisions start with the right numbers
Most big financial choices come down to a few key figures: how much a loan really costs once interest is added, how long it takes to pay off a balance, how much a retirement account could grow, or how a raise changes your take-home pay. Snazzam gives you free, instant tools to work those numbers out yourself — no spreadsheets, no jargon, and no need to hand your details to a salesperson first.
Each calculator is built around the same formulas banks, lenders, and financial planners use, so the results you see reflect how the math actually works. Every tool also comes with a plain-English explanation of what the numbers mean and answers to the questions people most often ask, so you leave understanding the decision, not just the output.
Who Snazzam is for
First-time home buyers comparing mortgage offers, borrowers deciding whether to pay off debt faster, savers building an emergency fund, investors estimating compound growth, and anyone trying to make sense of a paycheck, a tax bill, or a retirement plan. If a money question involves a number, there is probably a tool here for it.
How the calculators work
Enter your figures and results update instantly — the math runs entirely in your browser, so nothing you type is sent to a server or stored. Adjust an interest rate, loan term, or monthly contribution and watch the outcome change in real time, making it easy to compare scenarios side by side before you commit to anything.
A note on accuracy: Snazzam’s calculators are educational tools designed to help you estimate and compare options. They don’t account for every detail of your personal situation, and they aren’t a substitute for advice from a qualified financial professional, accountant, or tax advisor. For decisions that carry real weight, use these results as a starting point for a more informed conversation.
Money Guides
Learn the ideas behind the numbers
How Mortgage Amortization Actually Works
Why your early mortgage payments are almost all interest, how the balance melts away over time, and what happens when you pay a little extra.
Debt Avalanche vs. Snowball: Which Is Right for You?
Two proven strategies for paying off multiple debts. One saves the most money; the other keeps you motivated. Here is how to choose.
How Compound Interest Builds Wealth Over Time
The single most important concept in personal finance, explained with real numbers — and why starting early beats saving more.
Why Snazzam?
Every calculator is free, instant, and runs entirely in your browser — no data is sent to any server. Built by finance nerds who believe everyone deserves clear answers to money questions without paywalls, sign-ups, or spam.