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Circle Calculator
Circle math for students, machinists, and Minecrafters.
Circle Calculator brings 14 tools into one place: basics, arcs, chords, sectors, tangents, circle equations, 3-point circles, triangle-circle relationships, ellipse comparisons, a Minecraft block-circle generator, and a bolt-circle PCD calculator for machinists. Each tool ships with a written guide covering the formula and a worked example — not just a black-box result. No login, no paywall.
Hey 👋
I built Circle Calculator because every circle tool I found online did exactly one thing — area, or circumference — and sent me elsewhere the moment I needed anything more. So I built 14 calculators into one place: the basics, plus arcs, chords, sectors, tangents, circle equations, a 3-point circle solver, triangle-circle relationships, ellipse comparisons, and a couple of odd, specific ones I built for myself — a Minecraft block-circle generator, and a bolt-circle PCD calculator for anyone doing mechanical/machining work.
Every calculator comes with a guide explaining the formula and a worked example, so it's not just a black-box number — you can see how you got there.
It's free, no login, no paywall. Would love feedback on which calculator is most useful, what's missing, and what's confusing. Also curious if anyone actually uses the Minecraft one — that was a fun tangent to build.
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About Circle Calculator on Product Hunt
“Circle math for students, machinists, and Minecrafters.”
Circle Calculator was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #159 on the daily leaderboard. Circle Calculator brings 14 tools into one place: basics, arcs, chords, sectors, tangents, circle equations, 3-point circles, triangle-circle relationships, ellipse comparisons, a Minecraft block-circle generator, and a bolt-circle PCD calculator for machinists. Each tool ships with a written guide covering the formula and a worked example — not just a black-box result. No login, no paywall.
Circle Calculator was featured in Productivity (661.2k followers), Education (79.2k followers) and Developer Tools (519.8k followers) on Product Hunt. Together, these topics include over 280.5k products, making this a competitive space to launch in.
Who hunted Circle Calculator?
Circle Calculator was hunted by CircleCalculator. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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CircleCalculator