About Us

What is NtoolBox and what does it offer?

NtoolBox is a platform offering free online calculation and conversion tools useful for everyday life. No registration required, no paywalls — all tools are completely free and ready to use instantly.

From math calculations to health tracking, financial planning to fun — we cover a wide range of use cases. Every tool is designed to be simple, fast, and mobile-friendly.

What we offer

📐 Math
Percentage, area, volume, age calculator, ratios, and more.
🩺 Health
BMI, BMR, calorie needs, water intake, ideal weight, and more.
💰 Finance
Tax, net salary, loan, interest, inflation, and rent calculators.
🎲 Fun
Dice roller, luck test, decision wheel, lottery picker, and more.
⚙️ Generators
Password, QR code, Lorem Ipsum, UUID, and hash generators.
🔄 Converters
Temperature, length, weight, speed, word count, and unit converters.

Our mission

To make complex calculations and tools accessible, free, and easy to use for everyone. We serve users across the globe in 20 different languages.

For feedback or suggestions, visit our contact page.