Radius Calculator
Why does figuring out the radius of a circle feel like solving a mystery? Whether you're working on a DIY project, helping your kids with homework, or just curious about geometry, calculating the radius shouldn't require a math degree. That's where the Radius Calculator comes in. This simple, intuitive tool lets you find the radius of a circle in seconds—whether you know the circumference or the area. No more scratching your head or flipping through old textbooks. Just plug in the numbers, and voilà! You’ve got your answer. Perfect for students, designers, or anyone who loves a quick solution to a classic math problem.
Calculate the radius of a circle using circumference or area.
How It Works
The Radius Calculator uses two straightforward formulas depending on what you already know:
- If you have the circumference: Radius = Circumference ÷ (2 × π)
- If you have the area: Radius = √(Area ÷ π)
Example Calculations
| Circumference | Area | Radius |
|---|---|---|
| 31.4 | 78.5 | 5.00 |
| 62.8 | 314.16 | 10.00 |
| 94.2 | 706.86 | 15.00 |
| 125.6 | 1256.64 | 20.00 |
| 157.0 | 1963.50 | 25.00 |
10 Common Use Cases for the Radius Calculator
- Calculating the radius for a circular garden bed.
- Determining the radius of a pizza for portion planning.
- Designing circular tables or furniture.
- Finding the radius of a wheel for DIY projects.
- Helping kids with geometry homework.
- Planning circular layouts for events or decorations.
- Calculating the radius of a round swimming pool.
- Determining the size of a circular rug for a room.
- Measuring the radius of a circular mirror or artwork.
- Solving real-world math problems in physics or engineering.