Enter the desired finished length and braid thickness into the calculator to determine the required strand length for a Kumihimo braid.

Kumihimo Length Formula

The following formula is used to calculate the strand length required for a Kumihimo braid.

SL = (FL + BT) * π

Variables:

  • SL is the strand length (inches)
  • FL is the finished length of the braid (inches)
  • BT is the braid thickness (inches)
  • π (Pi) is a constant approximately equal to 3.14

To calculate the strand length, add the finished length to the braid thickness and then multiply by Pi (π). This formula assumes a standard braid and may need to be adjusted for more complex patterns or designs.

What is Kumihimo?

Kumihimo is a traditional Japanese form of braid-making. Cords and ribbons are made by interlacing strands of threads, which can be made of various materials such as silk, cotton, or synthetic fibers. Kumihimo braids are often used in jewelry making, decorative arts, and traditional Japanese garments.

How to Calculate Kumihimo Length?

The following steps outline how to calculate the strand length for a Kumihimo braid.


  1. First, determine the desired finished length of the braid (FL) in inches.
  2. Next, determine the thickness of the braid (BT) in inches.
  3. Use the formula SL = (FL + BT) * π to calculate the strand length (SL).
  4. Finally, calculate the required strand length in inches.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

desired finished length of the braid (FL) = 20 inches

thickness of the braid (BT) = 0.25 inches