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LJ HairLab

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Braiding Hair Calculator

Find out how many packs of braiding hair to buy for your style, size and length — with hair cost and install time.

Your style

Size
Your own hair density

Not sure? If your scalp is easy to see through dry hair, choose low; if hard to see, high.

Hair pack and price
g

Typical weight — most retailer listings show 160–165 g. Check your pack label.

USD

Your store's price. Default is a rough guess.

How to use the Braiding Hair Calculator

  1. Choose your style and length

    Pick a style — box braids, knotless, boho, Senegalese or passion twists, faux locs, cornrows or Fulani — and how long you want the braids, from shoulder to hip length.

  2. Pick the size and your hair density

    Choose micro to jumbo (only the sizes that suit your style are shown), then your own hair density. If your scalp is easy to see through dry hair, choose “Low”.

  3. Check the pack weight and price

    Open “Hair pack and price”. Classic 82″ packs are typically about 165 g; for pre-stretched or passion-twist packs, enter the grams printed on your label, plus your store’s price per pack.

  4. Tap “Calculate packs”

    You see how many packs of braiding hair to buy — one spare included — with the braid count, hair per braid, hair cost and install time.

  5. Save the shopping list

    Download the PDF shopping list with supplies for your style, or copy the link to send it to your stylist.

How to use the Braiding Hair Calculator (64 s)

How it works

To work out how many packs of braiding hair you need, the calculator estimates how much hair goes into each braid, multiplies it by the number of braids your size usually needs, and divides by the weight of one pack. It always rounds up and adds one spare pack. 

hair per braid = grams per inch × (braid length + extra for the fold and base)
total hair     = number of braids × hair per braid
packs to buy   = total hair ÷ grams per pack, rounded up, + 1 spare

1. Number of braids

Each style and size has a typical range — for example, medium box braids usually land between 80 and 100 braids, jumbo between 20 and 30. We use the middle of that range. Cornrows are counted in rows, and Fulani braids count both the cornrows and the hanging braids.

2. Your own hair density

With more of your own hair, a stylist makes more parts (or fuller ones) at the same nominal size, so more braiding hair goes in. We apply a multiplier: low density uses about 10% fewer braids, high density about 12% more. This is an assumption, not a measurement — if your stylist quotes a braid count, trust that.

3. Length

Hair is folded in half around each braid, so longer braids need proportionally more hair. Lengths follow our hair length chart for an average 5′4″ frame: shoulder 12″, bra-strap 18″, mid-back 21″, waist 25″ and hip 30″.

4. Pack weight

Classic 82″ braiding hair is typically sold in packs of about 160–165 g. Pre-stretched and passion-twist packs vary much more by brand and by how many bundles are in the bag, so for those the calculator asks for the weight printed on your label. Everything is done in grams, so any brand works.

Limits

These are planning numbers built from typical part sizes, not a measurement of your head. Stylists braid at different thicknesses, and boho, faux-loc and passion styles need extra hair for curls or wrapping. Heavy, extra-long braids also add weight to every root — research on traction alopecia links tight, heavy styles worn for long periods with hair loss at the hairline, so favor light tension and reasonable lengths.

Packs of 82″ braiding hair for mid-back length

Style MicroSmallMediumLargeJumbo
Box braids 12 packs9 packs7 packs5 packs4 packs
Knotless braids —8 packs7 packs5 packs4 packs
Goddess / boho braids —8 packs7 packs5 packs—
Senegalese twists —9 packs7 packs6 packs5 packs
Passion twists —7 packs6 packs5 packs4 packs
Faux locs —8 packs7 packs6 packs5 packs
Cornrows / feed-in braids —4 packs4 packs4 packs3 packs
Fulani / tribal braids —6 packs5 packs5 packs—

Mid-back length (21″), medium density, 82″ braiding hair at about 165 g per pack. Includes one spare pack. Boho braids need extra curly hair on top of this; cornrows are counted by rows.

Frequently asked questions

How many packs of braiding hair do I need for box braids?
For medium box braids with 82″ braiding hair (about 165 g a pack), plan on about 7 packs for mid-back length, 5 for shoulder length and 8 for waist length — each figure already includes one spare pack. Smaller braids and thicker natural hair need more.

How many packs do I need for knotless braids?
Knotless braids use about the same amount of hair as box braids of the same size. Medium knotless to mid-back works out to about 7 packs of 82″ hair and small knotless to about 8, including a spare.

How many packs for medium knotless braids at mid-back length?
About 7 packs of 82″ braiding hair, which includes one spare. If you use pre-stretched packs, enter the weight printed on the label — pre-stretched packs vary a lot between brands, so the count can change.

How many packs for Senegalese twists?
Medium Senegalese twists to mid-back come out at about 7 packs of 82″ hair with a spare. Each twist uses two strands of hair, but they are usually a bit thinner than a braid of the same size, so the totals end up close to box braids.

How many packs for jumbo box braids?
Jumbo box braids use fewer, thicker parts — about 4 packs of 82″ hair for mid-back length, spare included. Very long jumbo braids get heavy, so keep tension light at the hairline.

Is pre-stretched braiding hair better?
Pre-stretched hair is already tapered, so it saves time and gives natural-looking ends without feathering the hair yourself. The hair itself is not stronger or longer-lasting. Because pre-stretched packs differ so much in weight, check the grams on the label and enter them in the calculator.

Why does the calculator add a spare pack?
Packs are not perfectly consistent, stylists part differently and running out halfway through an install is a real problem. One spare is cheap insurance — unopened packs can usually be returned or saved for a touch-up.

Sources

Last data update:

  1. Haskin A, Aguh C. All hairstyles are not created equal: what the dermatologist needs to know about black hairstyling practices and the risk of traction alopecia (TA). J Am Acad Dermatol. 2016;75(3):606-611. Risk of traction alopecia by hairstyle; tension, weight and duration matter.

How we research and update pages: editorial policy. Spotted an error? Tell us.

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