Result in sine sin a =
Angle in degrees a =
°
Cosine to Sine Calculator
Our online calculator allows you to convert cosine values to sine and find the corresponding angle in degrees. This tool is perfect for students, teachers, and professionals who need to perform trigonometric calculations quickly and accurately. Simply enter the cosine value, and the calculator will provide the sine value and the angle in degrees. You can also choose the number of decimal places for the result. This calculator is based on the trigonometric identity:
sin²a + cos²a = 1 ⇒
sin²a = 1 — cos²a ⇒
sin a = √(1 — cos²a)
This equation is applicable for angles: 0 < a < π/2 or 0 < a < 90°. Our calculator allows you to compute the sine for any valid cosine value.