How many medium box braids do I need?

About 53–77 on a 22-inch head, in roughly 9 to 11 rows from the front hairline to the nape. A larger head or slightly smaller parts can take the count past 80.

What size parts should I use for box braids?

Medium parts, around an inch across, suit most heads: they are light enough for fine hair and quick enough to finish in one sitting. Go larger if you want a faster, cheaper install, and smaller only if your hair is dense enough to fill each part.

Do triangle or brick-lay parts change the number of braids?

Not really. Each braid still needs about the same patch of scalp, so the count stays close to a square grid. What changes is the look and the parting time: triangle parts take longer to cut, and a brick-lay grid hides more scalp because each braid sits over the gap in the row below.

How long does it take to do a full head of box braids?

Roughly 2 to 4 hours for jumbo, 3 to 5 for large, 4 to 7 for medium, 6 to 9 for small and 10 hours or more for micro braids with one braider. Long lengths, thick hair and intricate parts add time.

How many packs of hair do I need for that many braids?

That depends on the braid length as well as the count. Take your size to the braiding hair calculator to get the number of packs, then the braids price calculator for the cost.

Are smaller braids worse for my edges?

Size alone is not the problem — tension and weight are. Small parts hold fewer hairs, so a long, heavy braid on a tiny part pulls harder on each hair. Keep small braids short and light, and ask your braider not to grip the hairline tightly.

How Many Box Braids for a Full Head? Braid Size Chart

How many box braids for a full head: how the count is worked out

Every box braid sits on its own small patch of scalp. So the number of braids on a full head is simply the area of your scalp divided by the area of one part. The calculator estimates both and gives you a range, because nobody parts a whole head with a ruler.

scalp area  = circumference² ÷ (2 × π)
braids      = scalp area ÷ (part side × part side)
rows        = (circumference ÷ 2) ÷ part side
braid width = part side × 45%

The scalp area assumption

The part of your head that grows hair is treated as half a ball with the same circumference as your head. For a 22-inch head that gives about 77 square inches. It is an approximation: a low hairline, a high nape or a longer head shape adds or removes a few braids. If you do not know your measurement, the small, medium and large presets use 21, 22, 23 inches.

Why the average part is larger than the size name

Size names are loose. A "small" braid is usually described by its thinnest parts or by the braid itself, while the parts over the crown and the back of the head run larger. For that reason each size uses an average part range that is calibrated so a 22-inch head lands on the counts braiders commonly quote. The result shows that average part, so you can compare it with what your braider plans to do.

Rows, braids per row and time

Rows are counted along the line from your front hairline over the top of the head to the nape, which is about half your circumference. Dividing the scalp area by that distance gives the average row width, and from that the braids per row. Install time multiplies the braid count by a typical number of minutes per braid for that size. All of these are rules of thumb for one braider working without long breaks.

What the calculator cannot tell you

It does not know how dense your hair is, how long the braids will be or how fast your braider works. It also cannot judge tension. Braids of any size should not hurt: if they do, run the braid tension checker. Once you have a count, the braiding hair calculator turns it into packs of hair and the braids price calculator into a budget.

Size	Named part	Average part	Braid width	Small head (21 in)	Medium head (22 in)	Large head (23 in)	Rows	Install time
Micro	¼ in	0.55–0.7 in	¼–⅜ in	143–232	157–255	172–278	16–20	10–16 h
Small	½ in	0.8–0.95 in	⅜–⅜ in	78–110	85–120	93–132	12–14	6–8.5 h
Medium	¾–1 in	1–1.2 in	½–½ in	49–70	53–77	58–84	9–11	4.5–6.5 h
Large	1¼–1½ in	1.25–1.55 in	⅝–¾ in	29–45	32–49	35–54	7–9	3–4.5 h
Jumbo	2 in	1.65–2.2 in	¾–1 in	15–26	16–28	17–31	5–7	2–3.5 h

Shape	Parting time	How to part it
Square	baseline	Part straight rows from ear to ear, then cut each row into boxes. Rows and columns line up.
Triangle	about 15% longer	Part straight rows, then cut each row with zigzag parts so the boxes become triangles that point up and down in turn.
Brick-lay	about 5% longer	Part straight rows, then start every second row half a box over, like bricks in a wall, so each braid covers the part below it.

Box Braid Count & Parting Calculator

How to use the Box Braid Count & Parting Calculator

Choose your head size

Pick the braid and part size

Pick the part shape

Press “Count my braids”

How many box braids for a full head: how the count is worked out

The scalp area assumption

Why the average part is larger than the size name

Rows, braids per row and time

What the calculator cannot tell you

Box braid size chart

Part shapes

Frequently asked questions