Your Data Stays Private
Every calculation runs entirely in your browser. No financial data is ever transmitted, logged, or stored on any server.
Financial Calculator & Simulator Online - Free Tools
Professional financial calculators at your fingertips
Interactive financial calculator and simulator for mortgages, loan costs, compound interest, and amortization schedules. Free, instant, no sign-up.
Explore Our ToolsWhy Choose Our Financial Tools?
Professional-Grade Accuracy
Built on standard financial formulas used by banks and advisors. Results you can trust for real decisions.
No Account Needed
Use any calculator instantly — no sign-up, no email, no hidden limits. Unlimited calculations, always free.
How It Works
Open the financial calculator you need.
Enter your numbers — loan amount, interest rate, investment period.
Review results instantly, download reports, and compare scenarios.
Frequently Asked Questions
Are these financial tools free?
Yes. All calculators and simulators are completely free with no usage limits.
Is my financial data uploaded to your servers?
No. All calculations run locally in your browser using JavaScript. Your financial data never leaves your device.
Do I need to create an account?
No account is required. Start calculating immediately.
How accurate are the calculations?
Our tools use standard financial formulas (French amortization, compound interest) used by banks and financial institutions. Results are accurate to the cent.
Can I export or download results?
Yes. Most tools allow you to download amortization schedules and reports as CSV or PDF files.
Do the tools work offline?
Yes. Once loaded, all calculators work without an internet connection since all processing happens in your browser.
Our Categories
Loans & Mortgages
Mortgage, loan, car loan, credit card, debt payoff, and TIN/TAE calculators. Free, accurate amortization tools that work entirely in your browser.
Why use online loan and mortgage calculators? Borrowing decisions hinge on numbers most lenders never put on the front page: total interest paid over the life of the loan, the real annual cost once fees and insurance are included, how much faster the loan disappears with one extr
6 toolsSavings & Investments
Compound interest, savings goal, and inflation calculators. Project long-term growth, plan contributions, and see how purchasing power changes over time.
Why use online savings and investment calculators? Saving and investing decisions play out over years or decades, which is exactly where intuition is least reliable. The difference between contributing 200 a month and 300 a month, between starting today and starting in five years
3 toolsGeneral Calculators
Basic and advanced calculators for percentages, margins, ratios, and everyday financial math.
Why use an online percentage and math calculator? Percentage arithmetic appears in virtually every financial decision you make: the tip at a restaurant, the discount on a sale item, the gross margin on a product line, the tax rate applied to your paycheck, the yield on an investm
1 toolFeatured Tools
Mortgage Calculator
Free online mortgage calculator with amortization schedule. Simulate fixed, variable, and mixed-rate mortgages. Download full payment breakdown as CSV.
NEW!TIN / TAE Calculator — True Cost of a Loan
Calculate the real annual cost (TAE) of any loan by including opening fees, insurance, and recurring charges. Compare loan offers instantly.
Compound Interest Calculator
Free compound interest calculator with interactive growth chart. Model contributions, compounding frequency, dividends, and inflation. Download projections.
NEW!Savings Goal Calculator
Calculate how long it will take to reach a savings goal — or find the monthly contribution needed to hit a target amount by a specific date.
NEW!Percentage Calculator
Free online percentage calculator: find X% of Y, what percent X is of Y, and compute percentage increases or decreases — with instant results.