Irregular Shape Area Calculator

Draw Shapes Calculate Irregular Area online — free

Upload a plan or photo, sketch odd shapes or polygons, and get instant measurements — perfect for DIY, landscaping, real estate, architecture, and more.

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Drawing Tools

Freehand • Polygon • Edit

Image Trace

Scale & measure from photos

Units

m² • ft² • acres • custom

Export

PNG • JSON • CSV

Interactive Drawing

Click to add points, drag to refine, undo/redo anytime.

Image Upload & Trace

Import a plan/photo, set scale, then trace outlines precisely.

Accurate Units

Switch between m², ft², acres, or define your own custom unit.

Composite Shapes

Add/cut rectangles, circles, sectors, and segments fast.

Multi-Layer Projects

Work with multiple shapes/layers and toggle visibility.

Live Results

See area, perimeter, vertex count, and shape stats in real time.

How it works

Upload or Start Blank

Drop a plan/photo or start with a blank canvas.

Draw & Edit

Click to create points, drag vertices, use undo/redo to refine.

Set Scale & Get Results

Set a known distance; results update instantly in your chosen unit.

Why choose our calculator?

Fast & Lightweight

Minimal bundle with code-splitting so the editor loads only when needed.

Private by Design

Everything runs in your browser. Your drawings stay on your device.

Built for Real Work

From gardens to floor plans—precise scale control and robust editing.

FAQs

How do I calculate the area of an irregular shape?+

Draw a closed polygon around the shape. Set scale (if using an image). The area and perimeter update live.

Can I trace from photos or plans?+

Yes. Upload the image, set a known distance to scale, then trace the outline.

Which units are supported?+

Square meters, feet, yards, acres, hectares—and a custom unit if you prefer.

Is it free to use?+

Yes. The core features are free and work on desktop and mobile.

How accurate are the results?+

Accuracy depends on your point placement and scale. You can add more points and refine vertices anytime.

Start Area Calculation Now

Draw your irregular shape, quickly get area results, and export when you’re done.

Start Calculating