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    Tan 1 Degree

    Sin, Cos, Tan, Cot of an Angle
    Function
    Angle (°)

    What is tan 1°?

    Answer

    tan 1° ≈
    0.0175

    Angle in radians: 1° = π/180. The point of the angle is in quadrant I, where tangent is positive.

    ≈ — rounded to 4 decimal places. tan 1° can't be written with square roots: 1° is not a multiple of 3°.

    tan 1° = sin 1° / cos 1° ≈ 0.0175

    xyOP

    P(cos 1°, sin 1°) ≈ (0.9998, 0.0175)

    T(1, tan 1°) ≈ (1, 0.0175) — where line OP meets the line x = 1.

    All four functions of 1°
    FunctionExact valueDecimal
    sin 1°—≈ 0.0175
    cos 1°—≈ 0.9998
    tan 1°—≈ 0.0175
    cot 1°—≈ 57.2900

    See Also

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    https://calculat.io/en/number/trigonometry/tan--1Copy
    <a href="https://calculat.io/en/number/trigonometry/tan--1">Tan 1 Degree: Tangent of 1° on the Unit Circle - Calculatio</a>Copy
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    Tan 1 Degree: Tangent of 1° on the Unit Circle. tan 1° ≈ 0.0175. The tangent is the ratio y/x of the point at 1° on the unit circle.
    https://calculat.io/en/number/trigonometry/tan--1/generated.jpgCopy

    Tangent of nearby angles

    Angletan
    0°0
    1°≈ 0.0175
    2°≈ 0.0349
    3°≈ 0.0524
    4°≈ 0.0699
    5°≈ 0.0875
    6°≈ 0.1051
    Recalculate with different values ↑

    FAQ

    What is tan 1°?

    tan 1° ≈ 0.0175

    Why does tan 1° have no exact value?

    A trigonometric value of a whole number of degrees can be written with square roots only when the angle is a multiple of 3°. 1° is not, so no such exact form exists; the value is used as a decimal: tan 1° ≈ 0.0175.

    Why does a calculator show 1.5574 for tan 1?

    The calculator is in radian mode (RAD): it takes tan 1 as the tangent of 1 radian, tan 1 rad ≈ 1.5574. Switch it to degrees (DEG): tan 1° ≈ 0.0175. In radians the value is never undefined: π is irrational, so a whole number of radians never lands exactly on an axis.

    See Also