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The area of a circle calculator helps you compute the surface of a circle given a diameter or radius. Our tool works both ways — no matter if you're looking for an area-to-radius calculator or a radius to the area one, you've found the right place .
- Semicircle Area Calculator
With this semicircle area calculator, you can quickly find...
- Central Angle Calculator
In this model, the Sun is at the center of the circle, and...
- Segment Area Calculator
Use this segment area calculator to quickly compute the area...
- Circumference to Diameter Calculator
Let's look at an example. Suppose you want to find the...
- Circle Formula Calculator
Suppose you have a circle of radius 3 cm. If you want to...
- Arc Length Calculator
To calculate arc length without radius, you need the central...
- Surface Area Calculator
Our surface area calculator can find the surface area of...
- Sphere Volume Calculator
If you have ever wondered what's the volume of the Earth, a...
- Semicircle Area Calculator
Free online area of a circle calculator which helps you calculate the are of any circle, given its radius. Supports many different metrics such as in, ft, yd, mm, cm, meters, etc.
Free Circle Area calculator - Calculate circle area given equation step-by-step.
In this circle calculator, you can enter the value of a circle's radius, diameter, area, or circumference, and it will calculate the other three for you.
Welcome to our Circle Area Calculator, your trusty companion for all things circular. In this guide, we’ll unravel the secrets of finding the area of a circle using three different methods: given radius, given diameter, or given circumference.
This area calculator lets you calculate the area for several different planar shapes. The shapes currently supported are triangles, squares, rectangles, parallelograms, rhombuses, and circles. For most shapes, you have the option to choose what combination of inputs you want to provide.
Follow these steps to get your area calculations done right: [ ] Know Your Measurements: Have the radius (or diameter) of your circle ready. If you have the diameter, convert it to the radius first. [ ] Select the Right Calculator: Choose an online calculator or app that suits your needs.