Free Costume Planning Tool
Bias Tape Calculator
What This Solves
Why use a bias tape calculator?
Bias tape is one of those small details that gets underestimated until the fabric is already cut. This calculator helps you plan total binding length, strip width, and rough fabric usage so hems, necklines, and curved edges are easier to finish cleanly.
Quick Start
Quick workflow
- 1Measure the perimeter you want to bind.
- 2Choose the finished tape width and whether you want single-fold or double-fold tape.
- 3Match the fabric width to what you are cutting from.
- 4Use the strip count to decide whether a scrap project is realistic or if you need extra yardage.
Binding Inputs
Live Results
Bias Tape Results
Tip: Curved hems and necklines usually behave better with double-fold tape because the folded edges are easier to handle and topstitch cleanly.
Share these results with your shopping buddy or save the summary before you head to the store.
Verify results before use. See our disclaimer.
Frequently Asked Questions
Keep Planning
What's Next?
Use the next calculator while your measurements, notes, and shopping list are still in front of you.
Resource Guide
When bias tape planning becomes worth the effort
Bias tape seems minor compared to the main body fabric, but it often determines whether an edge looks polished or homemade. Binding is especially useful on curved hems, armholes, necklines, and unlined edges where a turned hem would be bulky or unstable.
Use self-fabric tape when the finish should match
Store-bought binding is convenient, but self-made tape gives you better color matching, better drape, and more control over width. That matters on visible hems and close-up costume details.
Strip count helps you judge project friction
If the strip count is high, the task will take longer and you will have more seams to join. That can be perfectly fine for hidden facings, but for a premium visible finish you may want to buy wider fabric or use ready-made tape instead.
Binding is often the missing shopping-list item
A lot of builds are delayed not by the main fabric but by the small finish details nobody wrote down. Planning binding early makes the rest of the sewing process smoother, especially when the fabric store is far away or the fabric is limited.
Live Results
Bias Tape Results
Tip: Curved hems and necklines usually behave better with double-fold tape because the folded edges are easier to handle and topstitch cleanly.
Share these results with your shopping buddy or save the summary before you head to the store.
Verify results before use. See our disclaimer.