KLOORAArea Calculator (Rectangle, Triangle, Circle, Trapezoid)
Calculate the area of common shapes from their dimensions.
Quick answer: Area Calculator (Rectangle, Triangle, Circle, Trapezoid): Calculate the area of common shapes from their dimensions. Everything runs in your browser, so nothing you enter is uploaded or stored.
How to use Area Calculator (Rectangle, Triangle, Circle, Trapezoid)
- Enter your values in the fields.
- The results update instantly as you type.
- Note or copy the numbers you need.
Features
- Instant results
- Free, no signup
- Runs in your browser, nothing is uploaded
- Works on phone and desktop
Frequently asked questions
Which shapes can I calculate?
Rectangle, triangle, circle, trapezoid, parallelogram and ellipse.
What do the fields mean?
Use A and B for the sides or radii and H for the height, as shown in the answer notes.
Is the Area Calculator (Rectangle, Triangle, Circle, Trapezoid) free?
Yes. It is free, needs no signup and works on any device.