---
title: Free Area Calculator – Circle, Square, Rectangle | Escolas Optics
description: Calculate the area of a circle, square, or rectangle in seconds. Just enter your measurements for instant, accurate results. It's free and easy to use.
---

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### Area Calculator

Easily calculate the area for a circle, square, or rectangle using our free area calculator! If calculating the area of a circle, enter diameter (radius x 2) along with your preferred PSI. For the area of a square or rectangle, enter length, width, and PSI.

Diameter (Input for Circle Only)

PSI

Select an option 0.5 1 1.5

Length (Input for Rectangle or Square Only)

Width (Input for Rectangle or Square Only)

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###### Results

Area Circle Sq. In. sq. in.

Area Circle in Sq. Kgs kg. sq.

Area Circle in daN/in² daN/in²

Area of Square or Rectangle in Sq. In. sq. in.

Area of Rectangle or Square in Sq. Kgs Sq. Kgs.

Area of Rectangle or Square in daN/in² daN/in²

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At Escolas Optics Consulting, we are dedicated to offering unparalleled consulting services in optics, coupled with outstanding customer support. Our goal is to not only meet but surpass our clients' desires, forging enduring partnerships within the optics manufacturing sector.

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