A simple tool to calculate Roblox Build A Boat For Treasure (BABFT) circle scaling. Made for easier and more accurate circle building.
✅ Auto-calculates Width Scale (one side & both sides)
✅ Supports 5°, 10°, 15°, and 30° rotation circles
✅ Copy outputs to clipboard easily
✅ Checks for updates automatically
✅ Lightweight .exe for Windows
- Download the latest
.ziprelease from releases. - Extract the
.zipfile to a folder anywhere on your PC (Desktop for quick access). - Inside the extracted folder, double-click the
.exefile to run the app.
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Enter your diameter in the input box.
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Choose your desired rotation from the dropdown.
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Click Calculate.
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View your results:
- Width Scale (One Side)
- Width Scale (Both Sides)
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Copy your output using the Copy (One Side) or Copy (Both Sides) buttons.
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Use it in BABFT:
- If you copied One Side, scale your part bigger or smaller depending on if the number is positive or negative.
- If you copied Both Sides, scale it equally on both sides.
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Clone your circle parts around to build a full circle.
💡 Tip:
If you're having trouble understanding how to use this tool, check out the YouTube tutorial here for a quick walkthrough.
Free to use for personal projects. Contact for redistribution or modified release permissions.

