US Financial Calculators

Know your numbers before you make a money decision.

Calculate mortgage payments, take-home pay, taxes, loans, car payments, investments, and retirement savings with simple, transparent tools built for the United States.

13 calculatorsFree forever, no signup
Tax year 2026IRS, SSA & state data
Inputs stay in your browserAnonymous analytics only

Data: IRS, SSA & Tax Foundation (tax year 2026)

Popular calculators

Mortgage tools

Paycheck & salary tools

Investment & growth tools

Why SialTV Money

Money guides

Financial Calculators for the Decisions That Matter

Money decisions are easier when you can see the numbers clearly. Whether you're planning to buy a home, comparing job offers, working out the cost of a loan, or figuring out how your savings could grow, the right calculation can help you make a more informed choice.

SialTV offers practical financial calculators that turn everyday money questions into clear, useful estimates. Enter your figures, adjust the assumptions, and see how different choices could affect your budget. You can explore the numbers at your own pace without needing to create an account.

Calculators for Everyday Financial Decisions

Buying a home and planning your housing budget

A home's purchase price tells only part of the story. Your monthly payment can also include property taxes, homeowners insurance, homeowners association (HOA) fees, and private mortgage insurance (PMI), depending on your loan and circumstances.

Use our mortgage calculator to estimate your monthly payment and explore how your interest rate, down payment, loan term, and extra payments may affect the total cost of borrowing. The amortization schedule helps you understand how payments are divided between principal and interest over time.

Not sure how much home you can comfortably afford? Our home affordability calculator helps you compare a potential housing budget with your income and existing debts. It can be a useful starting point before you begin house hunting, although your actual borrowing options will depend on your lender's requirements and your wider financial situation.

Understanding your salary and take-home pay

A salary offer can look different once taxes and payroll deductions are taken into account. Knowing the difference between gross pay and take-home pay can help you build a realistic budget before accepting a new job or changing your working arrangements.

Our paycheck calculator helps estimate how much of your earnings you may receive after applicable taxes and deductions. For a more detailed breakdown of your earnings across different pay periods, you can also use our salary calculator to convert hourly wages into weekly, monthly, or annual income.

These tools can help you compare job offers, plan regular expenses, and understand what different pay rates mean for your budget. Your actual paycheck may vary with your tax filing status, benefits, retirement contributions, withholding elections, and other deductions.

Comparing loans and car payments

A loan's monthly payment is important, but it isn't the only number worth checking. The interest you pay over the full term can make a meaningful difference to the total cost.

Use our loan calculator to estimate repayments, compare loan terms, and review an amortization schedule showing how the balance changes over time. It's useful when evaluating personal loans, student loans, and other installment loans supported by the calculator.

If you're planning to buy a vehicle, our car payment calculator helps you account for details such as the vehicle price, down payment, trade-in value, sales tax, and dealer fees. Reviewing the estimated amount financed alongside the monthly payment gives you a clearer picture of the commitment you're considering.

Planning investments and understanding compound interest

Saving regularly can make a difference over time, but the outcome depends on more than your starting balance. Your contributions, investment period, rate of return, and compounding assumptions all influence the result.

Our investment calculator lets you explore how an initial investment and recurring contributions could grow over a chosen period. You can compare the amount you contribute with the projected growth to understand how different assumptions affect the outcome.

For a closer look at compounding, try our compound interest calculator. For example, $10,000 growing at a hypothetical annual rate of 5%, compounded monthly for ten years, would become approximately $16,470 before taxes, fees, or withdrawals, assuming the rate remains constant and no additional contributions are made.

This is a mathematical illustration, not a promise of investment performance. Actual investment returns can fluctuate, and you may lose money.

How Our Calculators Work

A useful financial estimate should be understandable, not just a number on a screen. That's why it's important to know which inputs a calculator uses, what its results include, and which costs or circumstances may fall outside the calculation.

Our calculators are designed to help you explore financial scenarios by changing the figures that matter to your situation. Depending on the tool, these may include interest rates, loan terms, income, tax-related inputs, recurring contributions, or additional payments.

For tax and paycheck estimates, the accuracy of the result depends on the tax year, applicable federal and state rules, filing details, and deductions supported by the calculator. Always check the assumptions and data sources provided on the relevant calculator page, particularly when working with current tax information.

Where an amortization schedule is available, you can review how payments are allocated over time. For growth calculations, you can compare your contributions with the projected interest or investment growth. These details help you understand not only the result, but also why changing an assumption can change it.

For more information about the formulas, data sources, and limitations behind our tools, consult the methodology and source information provided on the relevant calculator pages.

Who Can Benefit From These Tools?

Our calculators are useful for people who want to understand the financial impact of a decision before committing to it.

  • First-time homebuyers can estimate mortgage payments and explore a housing budget.
  • Job seekers and employees can compare salaries and estimate take-home pay.
  • Borrowers and car buyers can compare repayments, loan terms, and borrowing costs.
  • Savers and investors can explore how regular contributions and different growth assumptions affect long-term projections.

You don't need to have every detail figured out before you begin. Start with the information you have, adjust the assumptions as you learn more, and use the results to identify the questions you still need to answer.

If you'd like to understand the calculations in more detail, explore our financial guides, where you can find additional explanations to help you interpret the numbers and make better-informed decisions.

Estimates to Support Better Decisions

A calculator can help you compare options, plan a budget, and understand the possible consequences of a financial choice. It cannot account for every personal circumstance or replace a lender's formal quote, a tax professional's assessment, or qualified financial advice.

Use the results as a starting point. Check the assumptions, verify important figures against authoritative sources, and consider the costs that may not be included in a particular calculation.

Our goal is to make financial calculations easier to understand so you can approach your next decision with greater clarity and confidence.

Frequently asked questions

Are these calculators really free?
Yes. Every calculator on SialTV Money is free, works instantly in your browser, and needs no account or signup.
Is my financial data sent to a server?
No. All calculations happen in your browser, so the numbers you type are not sent to our servers. We use Google Analytics to collect anonymous, aggregate usage data such as pages visited.
Are the results financial advice?
No. Results are estimates for education and planning, based on the assumptions shown on each page. They are not personalized financial, tax, legal, or investment advice.
Which tax year do the calculators use?
Tax year 2026, using IRS-published 2026 federal brackets and standard deduction, the 2026 Social Security wage base, and 2026 state tax structures from the Tax Foundation.
Which calculator should I start with?
Buying a home: start with the mortgage calculator, then sanity-check the price with the affordability calculator. Comparing a job offer: run the paycheck calculator for take-home pay and the salary calculator to move between hourly and yearly figures. Saving or investing: the investment calculator projects regular contributions, while the compound interest calculator explores compounding frequency and time.
What is the difference between the investment and compound interest calculators?
The investment calculator is built around regular contributions: an initial amount plus a monthly deposit, compounded monthly, with total contributions split out from growth. The compound interest calculator is the flexible lab: any compounding frequency from daily to annually, optional deposits each period, and a clear breakdown of principal, contributions, and interest earned.
How accurate are the estimates?
The formulas are standard financial math, and every calculator is tested against known cases on every build. Accuracy mostly comes down to your inputs: use your real property tax, insurance, and state figures instead of the defaults, and treat every result as a planning estimate rather than a quote.
Can I use the calculators on my phone?
Yes. Every calculator is fully responsive and works the same on phones, tablets, and desktops, with results updating as you type.