Triangle Calculator

Calculate area, perimeter, and angles of a triangle.

Side A

Side B

Side C

About Triangle Calculator

This free online triangle calculator helps you quickly and accurately perform calculations. Whether you're a student, professional, or just need a quick answer, our tool provides instant results with detailed breakdowns.

How to Use This Tool

Using our triangle calculator is simple:

Enter your values in the input fields above
Click the "Calculate" button
View your results instantly
Copy or use the results as needed

Why Use Our Triangle Calculator?

100% Free - No registration or payment required
Instant Results - Get answers in milliseconds
Mobile Friendly - Works on any device
Accurate - Uses precise calculation formulas
Privacy - No data is stored or shared

Common Use Cases

People commonly use this tool for:

Quick calculations at work or school
Verifying manual calculations
Learning and educational purposes
Professional applications

Understanding the Results

Our triangle calculator provides comprehensive results including the main calculation result and additional helpful information. The results are displayed in an easy-to-read format that you can quickly understand and use.

Tips for Best Results

Double-check your input values before calculating
Use decimal points for precise calculations
Refer to the examples if you're unsure how to use the tool