Cotangent Calculator

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

Math

Angle (θ)

Angle Unit

Formula

Cotangent is the reciprocal of tangent. It relates an angle to the ratio of cosine to sine.

cot(θ) = 1 / tan(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 cot(θ).

Examples

cot(45°)

1.θ=45°
2.tan(45°)=1
3.cot(45°)=1/1=1

Result: 1.0000000000

cot(30°)

1.θ=30°
2.tan(30°)≈0.5774
3.cot(30°)≈1.7320

Result: 1.7320508076

Frequently Asked Questions

Cotangent is the reciprocal of tangent: cot(θ) = 1/tan(θ).

cot(θ) is undefined when sin(θ) = 0 (e.g., 0°, 180°).

cot(θ) ranges from -∞ to ∞.

cot(45°) = 1.

cot(θ) = 1/tan(θ) = cos(θ)/sin(θ).

Related Calculators

Sine Calculator Cosine Calculator Tangent Calculator Secant Calculator Cosecant Calculator Inverse Trigonometric Calculator

CalculateMe Team

Last updated: 2026-07-14

Cotangent Calculator

Formula

How It Works

Examples

cot(45°)

cot(30°)

Frequently Asked Questions

What is cotangent?

Undefined when?

Range of cotangent?

Cot of 45°?

Relation to tan?

Related Calculators

Cotangent Calculator

Formula

How It Works

Examples

cot(45°)

cot(30°)

Frequently Asked Questions

What is cotangent?

Undefined when?

Range of cotangent?

Cot of 45°?

Relation to tan?

Related Calculators