How many clip-in wefts do I need?

A full set of clip-in extensions typically contains 7-10 weft pieces in various widths. For full volume, use all pieces. For half volume or everyday wear, use 5-6 pieces. For ponytail fullness, 2-3 back wefts may be enough. The exact number depends on your natural hair density and desired result.

How heavy should clip-in extensions be?

A full head set typically weighs 120-220g. For daily wear, 100-150g is comfortable. For special occasions, up to 220g for maximum volume. Fine hair should use lighter sets (100-120g) to avoid the clips pulling. Longer extensions weigh more — a 55cm set weighs 30-50% more than a 35cm set.

How do I apply clip-in extensions?

Section hair horizontally where you want to place the weft. Backcomb slightly at the root for grip. Open all clips on the weft, press the centre clip in first at the root, then secure side clips. Start with the widest weft at the nape and work upward. Leave the top 5-7cm of hair free to cover the clips.

Can clip-in extensions damage hair?

Clip-in extensions are the safest method as they are temporary. However, wearing them daily, clipping into the same spots, or using sets that are too heavy can cause traction. Give your hair a break between wearings. Avoid sleeping in clip-ins. If you notice soreness or thinning at clip points, use fewer or lighter pieces.

CutCalcs

Clip-In Calculator — Weft Sizes & Piece Count

Determine clip-in weft sizes and piece counts for a natural-looking result.

Desired Result

Hair Length

Natural Hair Density

How We Calculate This

This calculator recommends the number and type of clip-in weft pieces based on your desired result, hair density and length, with placement guidance.

How it works

Total pieces = Base count x Density factor

Total weight = Base weight x Length factor

Full volume: 8-10 pieces (~180g at shoulder length)
Half volume: 5-6 pieces (~120g)
Longer extensions increase total weight by 30-50%

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always perform a strand test before chemical services.