How far apart should hooks and eyes be?

For waistbands, one hook and eye is often sufficient. For back bodice closures, space them 2-3cm apart. Corset-style closures need 1.5-2cm spacing. Closer spacing gives a more secure closure.

What size hooks and eyes should I use?

Size 0-1 for lightweight fabrics and delicate closures. Size 2-3 for medium weight. Size 4+ for heavy fabrics and areas of strain. Use flat (trouser) hooks for waistbands and round hooks for bodice closures.

How do I sew on hooks and eyes?

Use matching thread and a small hand needle. Sew through each hole or loop with 4-5 stitches. Place the hook on the overlap side, slightly back from the edge. Place the eye on the underlap, extending slightly beyond the edge.

Can I use hooks and eyes on stretchy fabric?

Hooks and eyes work best on stable, non-stretch fabric. On stretchy fabric, they can pop open. For stretch closures, use snaps or hook-and-loop tape instead. Interface the closure area for added stability.

SewCalcs

Hook and Eye Calculator — Spacing & Quantity

Calculate hook and eye spacing and quantities for closures.

Closure Length

Spacing

Top Offset

From top edge to first hook

How We Calculate This

Hooks and eyes are spaced evenly along the closure, starting from the top offset. The quantity is determined by the closure length and desired spacing.

The formula

Usable length = Closure length - Top offset

Quantity = floor(Usable length ÷ Spacing) + 1

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities before cutting or purchasing fabric.