Sew Measure

Sewing calculator

Bias Binding Calculator

Estimate strip width, joins, and fabric for straight-grain or continuous bias binding.

Your measurements

Use one unit for every dimension in this form.

Total edge length to bind.

Visible finished width of the binding.

Choose the finished folding method.

Choose strip or continuous-bias planning.

Usable width available for strips or square.

Length lost at each strip join.

Optional percentage added before cutting waste.

Optional percentage for layout and cutting waste.

Binding result

Cut strip width
4.00 in
Strip count
3
Fabric to buy
0.375 yd
Binding strip planA scaled planning diagram. Use the matching text result and cut list for exact dimensions.3 strip(s)double-fold
Binding strip plan. The drawing is scaled for comparison; written dimensions control.

Formula

Fold type sets cut-strip width; strip joins or estimated continuous-bias area determine material.

Assumptions

  • Join allowance is lost from usable strip length.
  • Continuous bias is an area estimate.

When a tested commercial pattern gives different cutting dimensions or layout instructions, follow that pattern.

Worked example

  • 100 in edge
  • 1 in finished double-fold binding

The result lists unfolded strip width, strip count, joining loss, and purchase quantity.

Verification note

Test a short folded sample in the project fabric before cutting the full binding supply.

Learn and verify