Secant Calculator

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

Math

Angle (θ)

Angle Unit

Formula

Secant is the reciprocal of cosine. It relates an angle to the ratio of hypotenuse to adjacent side.

sec(θ) = 1 / 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 sec(θ).

Examples

sec(0°)

1.θ=0°
2.cos(0°)=1
3.sec(0°)=1/1=1

Result: 1.0000000000

sec(60°)

1.θ=60°
2.cos(60°)=0.5
3.sec(60°)=1/0.5=2

Result: 2.0000000000

Frequently Asked Questions

Secant is the reciprocal of cosine: sec(θ) = 1/cos(θ).

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

sec(θ) ≤ -1 or sec(θ) ≥ 1.

sec(0°) = 1.

sec(θ) = 1/cos(θ) = hypotenuse/adjacent.

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CalculateMe Team

Last updated: 2026-07-14

Secant Calculator

Formula

How It Works

Examples

sec(0°)

sec(60°)

Frequently Asked Questions

What is secant?

Undefined when?

Range of secant?

Sec of 0°?

Relation to cos?

Related Calculators

Secant Calculator

Formula

How It Works

Examples

sec(0°)

sec(60°)

Frequently Asked Questions

What is secant?

Undefined when?

Range of secant?

Sec of 0°?

Relation to cos?

Related Calculators