Better financial decisions start with clear numbers

Free calculators for loans, cars, homes, debt, budgets, savings, and retirement.

Byers Financial Tools helps you estimate payments, compare options, and understand the numbers before making a money decision.

View all calculators How calculations work
Free to useNo account required for the calculators.
Built for quick answersSee payments, payoff times, and total-cost estimates fast.
Plain-English explanationsEach major tool includes how it works and what to watch for.
Privacy-mindedCalculator inputs run in your browser and are not intentionally stored.

Free financial calculators built for real decisions

Use Byers Financial Tools to estimate monthly payments, total interest, payoff timelines, savings goals, and affordability before you commit to a loan, car, house, budget, or long-term savings plan.

Compare payment and total cost

A lower payment is not always cheaper. The calculators show interest, payoff time, and total cost so you can see the tradeoff.

Plan before applying

Try different prices, rates, terms, down payments, and savings rates before you talk to a lender or make a purchase.

Learn while calculating

Each major page includes simple explanations, examples, FAQs, and related tools so the numbers make more sense.

Most useful calculators

Start with the tool that matches the decision you are making.

🏠

Mortgage Payment Calculator

Estimate principal, interest, taxes, insurance, PMI, HOA, and amortization.

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🏡

House Affordability Calculator

Estimate a home price range from income, debts, down payment, and DTI.

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🚗

Auto Loan Calculator

Estimate car payments with tax, fees, down payment, and trade-in.

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🚘

Car Affordability Calculator

Start with your monthly budget and estimate a vehicle price ceiling.

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💳

Credit Card Payoff Calculator

Estimate payoff time and total interest on a credit card balance.

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📉

Debt Payoff Calculator

Compare snowball and avalanche debt payoff strategies.

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📊

50/30/20 Budget Calculator

Break take-home pay into needs, wants, and savings/debt payoff.

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📈

Compound Interest Calculator

Project investment or savings growth over time.

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🧓

Retirement Calculator

Estimate future savings and compare with a target nest egg.

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🧯

Emergency Fund Calculator

Estimate an emergency savings target and time to goal.

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⚖️

Loan Comparison Calculator

Compare two loan offers by payment, fees, term, and total cost.

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🤔

Extra Payment vs Investing

Compare extra loan payments with investing the same amount.

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What makes this site different?

Instead of only showing a number, the goal is to show the tradeoff: monthly payment versus total cost, short term versus long term, paying extra versus investing, and affordability versus risk.