Continuous bias calculator
Calculate both ways: required fabric or resulting bias length
Calculation method
Dimensions
Add 10-15 cm extra to compensate for losses during bias sewing (joints and finishes).
→ Finished bias: 0.0 cm wide
→ Sewn bias: 0.0 cm wide
Results
Select your method and enter dimensions
Results will appear automatically
How it works
💡 Infinite bias, "by the meter"
A fabric square + 2 seams = yards of bias! 💪
1.Cut the square into 2 triangles
2.Assemble them → parallelogram
3.Draw strips parallel to its length
4.Sew the strips by offsetting them to create a spiral
5.Cut, pre-fold… it's ready! ✂️
👉 Plenty of detailed tutorials available on YouTube
Keyboard Shortcuts
Calculate square size from desired length1
Calculate bias length from square size2
Clear selectionEsc
Your preferences are automatically saved and restored when you return.
Handy for making bias tape using the continuous bias method