Triangle Calculator
Calculate all sides, angles, area, and perimeter of any triangle. Supports SSS, SAS, ASA, AAS, and right triangle inputs.
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Calculator insights
What this calculator does
Triangle Calculator helps you quickly estimate calculate all sides, angles, area, and perimeter of any triangle. supports sss, sas, asa, aas, and right triangle inputs. with clean output and clear next steps.
How the calculation works
Enter Known Values, Side a / Angle A, Side b / Angle B and this calculator uses standard formulas to determine Area and Perimeter. The output is displayed immediately in a user-friendly format.
Example calculation
For example, enter realistic values into the Triangle Calculator to see how the calculator produces Area and Perimeter that you can use for planning and comparison.
Disclaimer
The calculations provided by this website are for informational purposes only and should not be considered financial, legal, tax, or professional advice.
Frequently Asked Questions
How do you find the area of a triangle?
Area = ½ × base × height. Or using Heron's formula for all 3 sides: Area = √(s(s-a)(s-b)(s-c)) where s = (a+b+c)/2.