Calculator · Geometry & layout
Golden Ratio Calculator
The free Golden Ratio Calculator answers one question: Pleasing proportions for furniture design. Enter your numbers in inches or millimeters and the result updates instantly in your browser, with no sign-up and no app to install. Use it on your phone at the bench, then copy or print the result for your cut list.
Enter one dimension and get the golden-ratio companion sizes (1 : 1.618).
Golden Ratio
- Larger (× 1.618)
- 48.541″
- Smaller (÷ 1.618)
- 18.541″
- Split: large part
- 18.541″
- Split: small part
- 11.459″
Pro tools · unlock
Which other geometry & layout calculators help with this project?
- Equal Spacing Calculator (Balusters, Slats) — Even gaps between slats, spindles or pegs.
- Shelf Spacing Calculator — Evenly space shelves inside a cabinet.
- Hexagon Calculator — Across flats, across corners and area from side length.
- Taper Jig Angle Calculator — Angle for tapered table legs.
What you'll need for this project
Tools
Screws & hardware
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Build it · Intermediate · 1 weekend
Download the complete plan with cut list and materials list (PDF)
Golden Ratio Bookcase — Bookcase whose height, width and shelf spacing all follow 1:1.618. Drawings, cut list with board-foot totals, hardware list and step-by-step instructions.