123Trig is a free visual calculator designed to help students quickly understand and solve geometry problems. It was born out of a personal frustration: I often saw students struggling with formulas that felt more complicated than they needed to be.
I wanted to create something pragmatic, logical, and simple — a clean, fast tool focused on clarity and results, not noise or distractions.
Want the result? Go for it. Forgot the formula? It’s right there. 123Trig was built to remove friction — so you can calculate faster, learn visually, and move on.