Area Calculator: Geometry

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Everyone
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Content rating
Everyone
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About this app

Find the area of a circle, check a geometry exercise or work out the floor area of a rectangular room. Area Calculator brings eight geometric shapes together in one app. Choose a shape, enter the known dimensions, select your units and tap Calculate.

EIGHT SHAPES IN ONE PLACE
Calculate the area of a circle, circular sector, ellipse, rectangle, triangle, parallelogram, trapezoid or regular polygon. Each shape has its own screen with a diagram and labeled input fields, so you can see which measurements to enter.

USE THE MEASUREMENTS YOU HAVE
For a circle, use the radius or diameter. For a triangle, choose between three sides, a base and its height, or two sides and the included angle. Regular polygon calculations can use the side length, circumradius or inradius. Pick the method that matches your starting data.

LENGTH AND AREA UNITS
Enter dimensions in millimeters, centimeters, meters or kilometers. Feet, yards, inches and miles are also available. Results appear in square units, with an area unit selector alongside the answer. Work with the scale that suits your problem.

FOR STUDY AND EVERYDAY TASKS
Check the numerical answer to a math problem, compare shapes or estimate a surface when planning a home project. Use length and width for a rectangular floor. For an irregular outline, divide it into simple shapes and calculate each part separately.

TEN INTERFACE LANGUAGES
Choose Russian, English, German, Spanish, French, Italian, Portuguese, Turkish, Ukrainian or Indonesian. Select a language on first launch and change it later using the button in the page header. Light and dark themes follow your system preferences.

Calculations run on your device without an internet connection. Clear diagrams and dedicated input fields keep the focus on your geometry task.
Calculate areas of 8 shapes with clear diagrams, unit options and 10 languages.
Updated on
Oct 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted