Triangle Area Calculator – Base, Height & Heron's Formula
Find the area of a triangle using base & height, three sides (Heron's formula), or two sides and included angle. Includes all formulas and unit conversions.
UD5 Toolkit
Find the area of a triangle using base & height, three sides (Heron's formula), or two sides and included angle. Includes all formulas and unit conversions.
Enter two sides of a right triangle and get the third. Also gives area and perimeter. Simple and visual.
Create all kinds of CSS‑only triangles (up, down, left, right, equilateral). Adjust color and size. Grab the code.