» Area of a Kite Calculator

Calculate kite area from diagonals or two sides and the included angle. Reverse the formula to find a missing diagonal, side or angle.

This calculator finds the area of a kite from two diagonals or from two sides and the included angle. It also works in reverse when the area is known and you want to solve for a missing diagonal, side, or angle.

The standard kite area formula from the diagonals is A = d1 × d2 / 2. If you know two sides and the included angle instead, the calculator can also use A = a × b × sin(θ).

That gives you two practical entry modes: one for the classic diagonal formula and one for side-and-angle geometry. Angle input can be entered in any supported angle unit, including radians.