Tangent Calculator

Use our free tangent calculator to find the tangent (tan) of any angle. Supports degrees and radians.

Math

Angle (θ)

Angle Unit

Formula

Tangent is a trigonometric function that relates an angle to the ratio of sine to cosine.

tan(θ) = sin(θ) / cos(θ)

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Enter the angle value.
2Choose degrees or radians.
3Click Calculate to get tan(θ).

Examples

tan(45°)

1.θ=45°
2.tan(45°) = 1

Result: 1.0000000000

tan(0 rad)

1.θ=0 rad
2.tan(0) = 0

Result: 0.0000000000

Frequently Asked Questions

Tangent is the ratio of sine to cosine, or opposite to adjacent.

tan(θ) is undefined when cos(θ) = 0 (e.g., 90°, 270°).

tan(θ) ranges from -∞ to ∞.

tan(45°) = 1.

Choose the unit that matches your angle.

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Sine Calculator Cosine Calculator Cotangent Calculator Secant Calculator Cosecant Calculator Inverse Trigonometric Calculator

CalculateMe Team

Last updated: 2026-07-14

Tangent Calculator

Formula

How It Works

Examples

tan(45°)

tan(0 rad)

Frequently Asked Questions

What is tangent?

Undefined when?

Range of tangent?

Tangent of 45°?

Degrees vs radians?

Related Calculators

Tangent Calculator

Formula

How It Works

Examples

tan(45°)

tan(0 rad)

Frequently Asked Questions

What is tangent?

Undefined when?

Range of tangent?

Tangent of 45°?

Degrees vs radians?

Related Calculators