Headband Length Calculator
Endbands material from spine width.
Inputs
%
Results
Total length needed (cm)
5.5
Total length (inches)2.2
Per headband (mm)25
Per book (mm)50
Total length (meters)0.06
Thread per color (cm)0
Type NamePre-made ribbon
How to Use This Calculator
- Enter the book spine width in millimeters — use the Book Block Calculator to find this value.
- Select the headband type: pre-made ribbon (sold by the meter) or hand-sewn woven endband.
- Enter the number of books to calculate total headband material.
- Set the waste allowance percentage to account for trimming and cutting errors (10% is a safe default).
- Read the total length in cm, inches, and meters — purchase ribbon in the nearest convenient quantity.
- For hand-sewn headbands, use the thread per color output to prepare the correct thread lengths.
How the result changes with Spine width (mm)
| Spine width (mm) | Total length needed (cm) |
|---|---|
| 21 | 6.8 |
| 71 | 17.8 |
| 130 | 30.8 |
| 180 | 41.8 |
What each input means
- Spine width (mm)
- Width of the book spine in millimeters.
- Headband type
- 1 = Pre-made ribbon, 2 = Hand-sewn (woven endband).
- Number of books
- How many books to make headbands for.
- Waste allowance (%)
- Extra material percentage for trimming and mistakes.
What each result means
- Total length needed (cm)
- Total headband material including waste allowance.
- Total length (inches)
- Total length in inches.
- Per headband (mm)
- Material for a single headband (head or tail).
- Per book (mm)
- Material for both head and tail headbands on one book.
- Total length (meters)
- Convenient for purchasing ribbon by the meter.
- Thread per color (cm)
- For hand-sewn only: thread length per color (2 colors typical).
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersSpine width (mm) = 15, Headband type = 1, Number of books = 1, Waste allowance (%) = 10 = 4 input(s) provided
- Calculate Total length neededTotal length needed = withWaste / 105.5 = 5.5
- Calculate Total lengthTotal length = withWaste / 25.42.2 = 2.2
- Calculate Per headbandPer headband25 = 25
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