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Free Finance Tools

Profit, margins, interest, tax, and investment calculators

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Salary Calculator

Convert between annual, monthly, weekly, and hourly salary. Instant breakdown.

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Compound Interest Calculator

See how your investment grows over time with compound interest. Year-by-year breakdown.

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Profit Margin Calculator

Calculate gross, net, and operating profit margin. Includes markup vs margin explanation.

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Break-Even Calculator

Find the exact units or revenue needed to cover your costs. With break-even chart.

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VAT Calculator

Add or remove VAT from any price. Supports custom rates and all major country rates.

Free Finance Calculators & Tools

All tools on this page are completely free to use, require no account or signup, and run entirely in your browser. Your data is never sent to a server. Results are instant.

These tools are built for professionals who need quick, accurate answers — not long explanations. Every calculator shows its formula so you can verify the logic.