Financial clarity,
zero compromise.

300+ free calculators for budgeting, investing, taxes, real estate, and more. All running privately in your browser.

For Everyone
Data Stays Local
Works Offline

Your Data Stays Local

All calculations happen in your browser. Your financial numbers never leave your device.

Always Free

No accounts, no subscriptions, no ads. Every tool is completely free forever.

Educational

Each calculator includes explanations, formulas, and practical examples.

Frequently Asked Questions

Why did you build Calculators.money?
I was frustrated by financial calculators that either required sign-ups, showed intrusive ads, or worse — collected and sold user data. When you're planning major life decisions like buying a home or retirement, the last thing you need is to wonder who's tracking your financial situation. So I built a suite of calculators that runs entirely in your browser, with no data ever leaving your device.
Why 'Calculators.money'?
I wanted a name that was straightforward and memorable. Calculators.money tells you exactly what you're getting — calculators for your money. No corporate jargon, no clever puns, just a clear description of what the site does.
How does this compare to financial software like Excel or paid tools?
Spreadsheets are powerful but require setup and formula knowledge. Paid financial software often locks basic features behind subscriptions. Calculators.money gives you instant, accurate results without any setup or cost. Each calculator is purpose-built, tested, and includes educational content explaining the underlying concepts.
How do you make money?
Currently, this is a passion project. I believe financial literacy tools should be accessible to everyone, regardless of their ability to pay. There are no ads and no premium tiers. If the site helps you make better financial decisions, that's reward enough.
Is my financial data private?
Yes. Every calculation runs in JavaScript directly in your browser. We don't have servers processing your inputs and no databases storing your financial data. The numbers you enter — your salary, mortgage amount, investment balances — never leave your device. We do use Google Analytics to understand which calculators are most popular, but this only tracks page visits, not the values you enter.
Why should I trust these calculations?
All calculators use decimal.js for precise financial arithmetic, avoiding the floating-point errors common in JavaScript. The formulas are documented, the code is transparent, and results match industry-standard calculations. That said, these are educational tools — always verify important decisions with qualified professionals.
Can I use this for my business?
Yes. Calculators.money is free for personal and commercial use. Financial advisors, real estate agents, accountants — anyone can use these tools with clients. Just remember the educational disclaimer applies regardless of context.
Will you add more calculators?
Always. The current collection covers budgeting, investing, real estate, taxes, retirement, options trading, business metrics, and more. If there's a financial calculation people commonly need, it probably belongs here. Suggestions welcome.
Stephen Taylor

Stephen Taylor

Creator & Developer

I'm a developer who believes that financial tools should empower people, not exploit them. After spending years watching friends and family struggle with opaque financial products and ad-laden calculators, I decided to build something different.

Calculators.money is part of a suite of privacy-first tools I've created, including PDF Pony for document editing, Statistics.tools for data analysis, and GIS.tools for mapping. Each follows the same philosophy: powerful functionality, complete privacy, zero cost.

Beyond software, I serve as President of the Canadian Freedom Institute, a charity dedicated to free market education. I believe financial literacy is a cornerstone of individual freedom — understanding compound interest, tax implications, and investment returns gives people the power to make informed decisions about their own lives.

When I'm not building calculators, I'm probably using them — running numbers on whether that rental property actually makes sense, or figuring out if I'm saving enough for retirement. These tools exist because I needed them myself.

Website@stephen_taylorLinkedIn

How It Works

Calculators.money is built as a static web application using React. When you visit a calculator, all the code runs directly in your browser — there's no server processing your data.

We use decimal.js for precise financial calculations, avoiding the floating-point errors that can occur with standard JavaScript numbers. This ensures accurate results for everything from simple interest to complex amortization schedules.

Your favorites and preferences are stored in your browser's localStorage — never on our servers. If you clear your browser data, these settings will be reset, but we have no way to recover them because we never had them.

We use Google Analytics to understand which calculators are most useful and how people find the site. This tracks page visits and general usage patterns, but never the actual numbers you enter into calculators — those stay entirely in your browser.

Educational Purpose Only

Calculators.money is for educational and informational purposes only. The calculators and information provided are not intended as financial, tax, legal, or investment advice. Results are estimates based on the information you provide and may not reflect actual outcomes. Always consult with qualified professionals before making important financial decisions.

No Warranty

This site is provided "as is" without warranty of any kind. While we strive for accuracy, we make no guarantees about the completeness, reliability, or accuracy of calculations. Use of this site is at your own risk.

Professional Advice

Nothing on this site constitutes professional financial, legal, or tax advice. For personalized guidance on your specific situation, please consult a qualified financial advisor, accountant, or attorney.

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