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Bow Size Calculator — Ribbon for Bows

Calculate ribbon length needed to make bows of different styles and sizes.

How We Calculate This

How the Calculation Works

Classic bow: Each loop uses approximately half the circumference of the bow diameter. Multiply by the number of loops, then add tail lengths and centre knot allowance (8 cm).

Pom-pom bow: Similar to classic but with more loops and no tails. Centre tie uses about 10 cm.

Simple bow: Two loops (one each side) equal to the bow diameter, plus two tails and a knot.

Florist bow: Graduated loops where each layer is slightly smaller, creating a layered effect.

Frequently Asked Questions

Last updated: 2025-02-20

All calculations are estimates. Always verify quantities before purchasing materials.