Oblique Triangle Löser

Solves triangles where angles are not 90 degrees using the Law of Sines and Law of Cosines.

Enter known sides and angles Then: Select whether you have SSS, SAS, or ASA data Then: Calculate remaining sides and angles.

Example: Input Sides 5 and 7, included angle 45° gives a result of Opposite side ≈ 4.79, other angles calculated (Non-right triangle solution).

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

Our Oblique Triangle Löser uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.