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Draw a Perfect Circle
I'll judge your geometric abilities. No pressure.
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Click and drag to draw
One continuous motion
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Draw a circle. I dare you.
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How it works: I measure the variance of your radius from the center point, check how well you closed the loop, and judge your overall geometric competence.
A perfect circle has zero variance - every point is exactly the same distance from the center. Humans typically score 60-80. Above 85 is impressive. Above 95 is suspicious.
Fun fact: Giotto famously drew a near-perfect circle freehand to prove his skill. His scored about 90. How do you compare?
All analysis happens locally in your browser. Your circles stay private.
I won't tell anyone how bad you are at this. Promise.