How do I measure my neck?

Measure around the base of your neck where a necklace would sit. The tape should be snug but comfortable. A typical women's neck measurement is 34–38cm.

How long should neckline binding be?

For knit binding, cut the strip to 85% of the neckline opening circumference — the stretch of the knit will allow it to fit when applied. For woven bias binding, cut to 100% of the neckline circumference plus 2cm for overlap.

What determines the neckline drop?

The neckline drop is how far below the base of the neck the neckline sits at centre front. A standard round neckline drops about 7–8cm. A scoop neck drops 12–15cm. A deep V can drop 20cm or more.

SewCalcs

Neckline Calculator — Neckline Dimensions & Binding

Calculate neckline opening dimensions and binding strip length for various neckline styles.

Neck Circumference

Neckline Drop

Depth below neck base

Neckline Style

How We Calculate This

The neckline circumference depends on your neck measurement, the neckline style, and the drop depth.

The formula

Neckline circumference = (Neck × Style factor) + (Drop × 2)

Knit binding length = Neckline circumference × 0.85

Frequently Asked Questions

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Last updated: February 2026

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