About Circlemark

One focused tool.
A checkable result.

Circlemark is a free independent calculator for equally spaced positions on a circle. The inputs, coordinate conventions and rounding rules are explained in an original guide.

A simple working page

There is one calculator on this website, with no account or paid plan. Calculations happen in the browser tab. The coordinate table and vector drawing describe the same numbered point layout.

Check the model

Read the method and examples and use your own verified measurements. A numerical output does not inspect the real object, material or drawing. The site makes no claim of compliance with a professional or engineering standard.

How the free tool may be funded

Cloudflare Web Analytics is enabled in this site's hosting settings for aggregate traffic and page-performance reports when its beacon loads. Read Privacy for measurement and hosting details. The calculator remains free. Publisher identification does not itself activate advertising or establish approval or earnings; the site's actual advertising configuration is described in the privacy notice.

Corrections

Report an arithmetic issue through the existing shared portfolio inbox, including the inputs and expected result. Original guide and worked examples prepared 18 October 2026. Open the calculator →