Find the area and arc length of a circular sector.
Free · Private · Runs in your browser
Math tool
Sector Area Calculator
Find the area and arc length of a circular sector.
Your result will appear here after you submit valid inputs.
Formula and method
This calculator applies sector area = θπr² / 360 to the values you enter. Calculations happen locally in your browser, and the displayed result is not a quote, diagnosis, or professional recommendation.
Boundaries
All values are entered directly in the browser.
The result is shown without intermediate display rounding.
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