Cosine Calculator

Helps users quickly calculate or estimate cosine.

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Result

cos(θ)

0.5

Angle in radians

1.047198

Cosine Calculator — How It Works

Helps users quickly calculate or estimate cosine. Try the Cosine Calculator — instant results in your browser.

Enter your values in the fields shown. Results update live as you type.

Yes — runs entirely in your browser with no sign-up.

Geometry and algebra use standard formulas. Double-check critical homework or exam work with your instructor.