01
Automatically Calculate All Sector Values
A sector is a portion of a circle formed by two radii and an arc. This calculator automatically calculates area, arc length, and perimeter by just entering the radius and central angle. This pie-slice shaped figure is frequently used in everyday life and mathematics.
02
Using Mathematically Accurate Formulas
Area is calculated using the formula (θ/360) × π × r², arc length as (θ/360) × 2 × π × r, and perimeter as arc length + 2r. Enter the central angle in degrees to get precise results.
03
Essential Tool for Architecture and Design
Sectors are frequently used in architecture and interior design, such as circular stairs, sector tiles, and portions of circular windows. Calculate accurate area and perimeter for material purchasing and construction planning.
04
Easy to Understand with Visual Diagrams
Visually displays the shape of the sector with SVG diagrams. The radius and arc are clearly marked, making it intuitively understandable. Dark mode is also supported.
05
Optimized for Math Education
Useful for students learning the properties of sectors and circles. You can see in real-time how area and arc length change as you vary the central angle, helping to develop mathematical intuition.
06
Supports Both Mobile and Desktop
Responsive design allows convenient use on smartphones, tablets, and desktops anywhere. Calculate on-site immediately or use as educational material in the classroom.
