Right Triangle Calculator
Calculate all sides and angles of a right triangle. Enter any 2 values to solve for the others. Supports degrees and radians (e.g., pi/3). Fast, accurate, and mobile-friendly geometry tool.
How to Use:
- Enter any two values (sides or angles)
- For angles in radians, use expressions like: pi, pi/2, pi/3, 2*pi/3
- Leave other fields empty to calculate them
- All values must be positive
Examples:
Degrees: 30, 45, 60
Radians: 1.57, pi/4, 2*pi/3
a
b
c
A
B
C = 90°
Right Triangle Properties:
- Angle C is always 90° (π/2 radians)
- Pythagorean theorem: a² + b² = c²
- Angles sum: A + B + C = 180°
- Trigonometric relations:
- sin(A) = a/c
- cos(A) = b/c
- tan(A) = a/b
Calculation Results
Side a (opposite A)
–
Side b (opposite B)
–
Hypotenuse c
–
Angle A
–
Angle B
–
Angle C
90°
Area
–
Perimeter
–