Free Financial Tools

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Free, fast and accurate financial calculators for mortgages, loans, tips, savings and inflation. No sign up. No cost. Ever.

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The Tool Library

Five free calculators covering the most important financial decisions in your life. No jargon, no sign up — just clear answers.

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Mortgage Calculator

A mortgage is a loan you take out to buy a home. This calculator helps you figure out your monthly payment based on the home price, your down payment, interest rate and loan term. It also shows you the total interest you'll pay over the life of the loan — so there are no surprises.

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Loan Calculator

Taking out a personal loan, car loan or student loan? Enter the loan amount, interest rate and repayment period to instantly see your monthly payment, total interest and full cost of the loan before you sign anything.

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Tip Calculator

After a meal, figuring out how much to tip — and how to split it fairly — can be awkward. Enter your bill total, choose a tip percentage (15%, 18%, 20% or custom) and the number of people. We'll tell you exactly what each person owes.

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Savings & Inflation

The Savings Calculator tells you how long it will take to reach a financial goal — like saving $10,000 — based on what you put away each month. The Inflation Calculator shows how rising prices shrink the real value of your money over time. Use them together to plan smarter.

Savings Calculator Inflation Calculator
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Finance Fundamentals

What Every Smart Borrower Should Know.

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How Does a Mortgage Actually Work?

A mortgage is a secured loan where the property itself serves as collateral. Each monthly payment covers two things: interest (the lender's fee) and principal (reducing what you owe). In the early years, most of your payment goes toward interest. This gradually shifts — by year 20 of a 30-year mortgage, over half your payment builds equity.

The interest rate you receive depends on your credit score, down payment size, loan term and current market rates set by the Federal Reserve. A difference of just 1% on a $400,000 mortgage means roughly $80,000 more in total interest over 30 years.

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The Real Cost of a Personal Loan

When a bank approves you for a $20,000 personal loan at 12% APR over 5 years, your monthly payment is $444. But your total repayment is $26,640 — you pay $6,640 in interest for the convenience of borrowing. The shorter the term, the less interest you pay overall, though monthly payments rise.

APR (Annual Percentage Rate) includes the interest rate plus any fees. Always compare APR — not just interest rate — when shopping loans. Even a 2% APR difference on a $30,000 auto loan saves over $2,000 across a 6-year term.

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Why Compound Interest Is the Most Powerful Force in Finance

Einstein allegedly called compound interest the eighth wonder of the world. Whether he said it or not, the math backs it up. If you invest $5,000 at age 25 and earn 8% annually, by age 65 you have $108,623 — without adding another cent. Wait until 35 to start and you end up with only $50,313. That 10-year gap costs you over $58,000.

Compound interest works against you in debt too. Credit card balances at 22% APR can double in under 4 years if only minimum payments are made. The same force that builds wealth destroys it when it's working for your lender.

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Partner Picks

Recommended Financial Products.

Tools and services our team has reviewed. We may earn a commission if you sign up — at no cost to you.

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High-Yield

High-Yield Savings Account

Earn up to 5.00% APY on your savings — over 10× the national average. FDIC insured. No fees. No minimum balance.

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Mortgage

Online Mortgage Pre-Approval

Get pre-approved in minutes with no hard credit pull. Compare rates from 20+ lenders side by side. Lock in your rate before rates rise.

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Personal Loan

Personal Loan — Up to $50,000

Check your rate in 2 minutes with no impact to your credit score. Funds deposited as fast as next business day. Fixed rates, no prepayment penalties.

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Cash Back

2% Cash Back Credit Card

Unlimited 2% cash back on every purchase. No annual fee. 0% intro APR for 15 months. $200 welcome bonus after spending $500 in first 3 months.

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Commission-Free Stock Trading

Invest in stocks, ETFs and options with $0 commissions. Fractional shares from $1. Automated portfolio rebalancing. 4.9% APY on uninvested cash.

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Smart Budget & Expense Tracker

Connect all your accounts in one place. Track spending automatically by category. Set savings goals and get weekly insights on where your money goes.

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* Rates shown are for illustrative purposes. Always verify current rates with the provider directly.

Quick Finance Facts

Numbers That Actually Matter.

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The 50/30/20 Rule

Spend 50% of take-home pay on needs, 30% on wants, and 20% on savings or debt repayment. One of the most widely recommended budgeting frameworks for building financial stability.

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Emergency Fund First

Financial advisors recommend keeping 3–6 months of living expenses in a liquid savings account before investing. This protects you from going into debt when unexpected expenses hit.

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Your Credit Score Range

Scores range from 300–850. Anything above 740 gets you the best loan and mortgage rates. Below 620 means higher rates and potential rejections. Paying bills on time is the single biggest factor.

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Debt-to-Income Ratio

Lenders want your total monthly debt payments to be below 36% of your gross monthly income. Above 43% is the upper limit for most qualified mortgages. Calculate yours before applying for any loan.

Common Questions

Frequently Asked Questions.

Everything you need to know about using our free financial calculators and making better money decisions.

Yes — completely free, forever. No sign up, no credit card, no hidden fees. ClearCalc is supported by advertising and affiliate partnerships. Every calculator on this site is free to use unlimited times.

Our calculators use the same standard amortization formulas used by banks and financial institutions worldwide. The math is precise. However, real loan payments may vary slightly based on lender fees, rounding methods and exact rate terms. Always treat calculator results as reliable estimates and confirm final numbers with your lender.

The interest rate is the base cost of borrowing money, expressed as a percentage. APR (Annual Percentage Rate) includes the interest rate plus all lender fees — origination fees, mortgage insurance, closing costs. APR represents the true annual cost of the loan. When comparing loan offers, always compare APR, not just the interest rate.

A common rule is that your monthly housing costs should not exceed 28% of your gross monthly income. On a $80,000 annual income ($6,667/month), that means housing costs up to $1,867/month. At current rates (~6.5%), that income supports roughly a $290,000–$320,000 home with 20% down. Use our mortgage calculator to model your exact scenario.

If your debt interest rate is higher than your expected investment return, pay off debt first. High-interest debt like credit cards (18–25% APR) should almost always be paid off before investing. Low-interest debt like student loans or mortgages (3–7%) can be carried while investing, especially if your employer offers a 401(k) match — that's an instant 50–100% return on that money.

Inflation erodes purchasing power over time. At 3% annual inflation, $10,000 today will only buy what $7,441 buys in 10 years — a loss of over 25% in real value. This is why keeping large amounts in a basic savings account earning 0.5% when inflation runs at 3% means you're effectively losing money. High-yield savings accounts, I-Bonds and diversified investments help offset inflation's impact.

For a conventional mortgage, most lenders require a minimum score of 620. For the best interest rates, you'll want 740 or above. FHA loans allow scores as low as 580 with 3.5% down. The difference between a 620 and 760 score on a $350,000 mortgage can mean a 1%+ rate difference — that's over $80,000 in extra interest over 30 years.

Finance Glossary

Key Terms, Simply Explained.

Amortization

The process of paying off a loan through regular payments over time. Each payment covers interest owed plus a portion of the principal. Early payments are mostly interest; later payments are mostly principal.

Principal

The original amount borrowed, not including interest or fees. When you take a $250,000 mortgage, $250,000 is your principal. Every payment chips away at this balance while also covering interest.

Equity

The portion of your home you actually own — market value minus what you still owe. If your home is worth $400,000 and your mortgage balance is $250,000, you have $150,000 in equity.

Down Payment

The upfront cash you pay when buying a home or car, reducing the loan amount. A 20% down payment on a $400,000 home means you borrow $320,000. Putting less than 20% down on a home usually triggers PMI.

PMI (Private Mortgage Insurance)

Insurance required when your down payment is less than 20%. It protects the lender, not you. Typically costs 0.5–1.5% of the loan annually — on a $300,000 loan that's $125–$375 per month extra.

Fixed vs Variable Rate

A fixed rate stays the same for the entire loan term — predictable payments. A variable (adjustable) rate can change based on market conditions. Fixed rates offer stability; variable rates may start lower but carry risk.