Right Triangle Calculator

Right Triangle Solver – Calculator, Trigonometry & Geometry

Solve right triangle problems quickly and accurately with Right Triangle Solver, an easy-to-use calculator for students, teachers, engineers, and anyone studying geometry and trigonometry.

📐 RIGHT TRIANGLE CALCULATOR

Enter the known values of a right triangle and calculate missing sides, angles, hypotenuse, area, and perimeter. Choose from multiple solving modes:

• Two Legs – Enter sides a and b to calculate hypotenuse c and angles.
• Leg + Hypotenuse – Find the missing leg and angles.
• Leg + Angle – Calculate the remaining triangle values.
• Hypotenuse + Angle – Find the missing sides and angles.

🧮 CALCULATE SIDES & ANGLES

Calculate side a, side b, hypotenuse c, angles A and B, the 90° right angle, area, perimeter, and trigonometric ratios. Solve common examples such as the 3-4-5 right triangle with fast and clear results.

📊 STEP-BY-STEP SOLUTIONS

Understand how every result is calculated. The app shows known values, the selected formula, value substitution, calculation steps, and the final answer. Useful for learning, homework, exam preparation, and checking calculations.

📚 FORMULAS & REFERENCE

Review important right triangle and trigonometry formulas in one place, including:

• Pythagorean theorem
• Hypotenuse and side formulas
• Sine, cosine, and tangent
• Trigonometric ratios
• Angle relationships
• Right triangle geometry
• Formula explanations and derivations

📐 CLEAR TRIANGLE DIAGRAM

View a clean visual representation of the right triangle with labeled sides and angles. Labels such as a, b, c, A, B, and 90° make the diagram easy to understand.

💾 CALCULATION HISTORY

Keep previous calculations organized. Save results, search history, filter calculations, reopen solutions, view details, share results, or delete old calculations.

⚙️ CUSTOMIZABLE SETTINGS

Customize your calculator with options for length units, decimal precision, theme, haptic feedback, sound, and live calculation preview.

📏 MULTIPLE UNITS

Perform calculations using common measurement units such as millimeters (mm), centimeters (cm), meters (m), inches (in), and feet (ft). Useful for classroom, technical, and everyday geometry calculations.

📐 PYTHAGOREAN THEOREM

Use the fundamental right triangle relationship:

c = √(a² + b²)

Find the hypotenuse from two legs or a missing leg from the hypotenuse and another leg.

📊 TRIGONOMETRY

Work with the most common trigonometric relationships:

sin(A) = opposite / hypotenuse
cos(A) = adjacent / hypotenuse
tan(A) = opposite / adjacent

Use these formulas to find missing sides and angles.

🎓 USEFUL FOR STUDENTS & PROFESSIONALS

Ideal for students, teachers, engineers, architects, surveyors, and technical learners.

Use it for homework, exams, formula reference, technical work, or checking results.

🚀 SIMPLE, FAST & EASY TO USE

Right Triangle Solver combines a right triangle calculator, Pythagorean calculator, trigonometry calculator, formula reference, step-by-step solver, triangle diagrams, and calculation history in one convenient app.

Enter your known values, choose a calculation mode, and solve your right triangle in seconds. Whether you need to find a missing side, calculate an angle, determine the hypotenuse, find the area, or understand the formula behind the answer, Right Triangle Solver provides a clear and practical solution.

Download Right Triangle Solver and make right triangle calculations, geometry problems, and trigonometry easier to understand.