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Bow Size Calculator — Ribbon for Bows

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

Finished bow width

For reference only

Optional

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.