User Guide
Welcome to our guide. Discover how to make the most of our tools.
Introduction
Our site is designed to be your all-in-one math assistant. It combines a vast library of specialized calculators with an AI tutor that can help you solve problems step-by-step. This guide will show you how to use both of these main features effectively.
Finding a Calculator
With over 100 tools available, we've made it easy to quickly find what you need.
Use the search bar at the top of each page. Type a keyword like 'percentage', 'BMI', or 'loan' to instantly see matching calculators.
On the homepage or via the '+100 Calculators' link, you can browse our 13 categories, from finance to physics, to discover all available tools.
Using a Calculator
Each calculator is designed to be intuitive.
- Open the calculator: Click on a calculator from the list to open its dialog window.
- Enter your data: Fill in the required fields with your own values. The units (kg, cm, $, etc.) are indicated to guide you.
- Calculate: Click the 'Calculate' button to get the result instantly.
- Check the formula: Each calculator displays the mathematical formula used, ideal for understanding the 'how'.

The AI Tutor
For more personalized help, our AI tutor is available on each calculator's page.
Ask your questions in natural language. For example:
- ""How do I calculate my BMI if I weigh 80kg and am 1.80m tall?""
- ""Explain the mortgage payment formula to me.""
- ""Give me an example of a percentage calculation.""
The AI will provide a detailed explanation, the calculation steps in mathematical format, and the final result.