Calculators & Converters
    Circle Sector
    Radius :

    Angle :

    Sector Area :

    Arc Length :

    1. Insert this widget code anywhere inside the body tag
    2. Use the code as it is for proper working.

    Circle Sector (Arc) Area Calculator's Circle Sector Formulas & Calculator is an online basic geometry tool to calculate area of sector & length of an arc (partial circumference length), in both US customary & metric (SI) units.

    Steps to Find Area & Length of a Circle Sector

    The step by step workout for how to find what is area & length of a circle sector.Workout :
    step 1 Address the formula, input parameter and values
    Radius = 5 in
    Angle = 45 °

    step 2 Find Area of Circle Sector using Radius and Angle values
    Area A = πr²θ/360
    = π x (5)² x 45/360in²
    = 3.1416 x 25 x 45/360in²
    = 3534.2917/360in²
    Area A = 9.8175 in²

    step 3 Find Length of Circle Sector using radius and angle values
    Length L = 2πrθ/360in
    = 2 x 3.1416 x 5 x 45/360in
    = 1413.7167/360in
    Length L = 3.927 in

    Definition & Formulas

    Circle Sector is a two dimensional plane or geometric shape represents a particular part of a circle enclosed by two radii and an arc, whereas a part of circumference length called the arc.

    prism formulas to calculate volume & surface area
    Formula to calculate area of circle sector (arc) Calculators