1. What is Bias Binding?

Bias binding is a strip of fabric cut on the bias (at a 45° angle to the selvage) which has stretch and flexibility, making it ideal for finishing curved edges in sewing projects.

2. How Does the Calculator Work?

The calculator uses the bias binding formula:

Where:

• Total Length — The length of the edge you need to bind (inches)
• sin(45°) — Approximately 0.7071

Explanation: Since bias binding is cut at 45°, you need more fabric length than the actual edge length to account for the diagonal cut.

3. Importance of Bias Binding Calculation

Details: Accurate bias length calculation ensures you cut enough fabric for your project without waste, especially important when working with limited or expensive fabrics.

4. Using the Calculator

Tips: Measure the total length of the edge you need to bind in inches. Add a little extra (10-15%) to account for seams and overlaps.

5. Frequently Asked Questions (FAQ)

Q1: Why cut fabric on the bias?
A: Bias-cut fabric has more stretch and flexibility, making it ideal for binding curved edges.

Q2: How wide should I cut my bias strips?
A: Typically 2-2.5 inches wide for standard binding, but depends on your project requirements.

Q3: Can I use this for quilt binding?
A: Yes, bias binding is especially useful for quilts with curved edges.

Q4: What's the difference between bias binding and straight-grain binding?
A: Straight-grain binding has less stretch and is better for straight edges, while bias binding works better for curves.

Q5: How do I join bias strips?
A: Join strips with diagonal seams to maintain the bias stretch and reduce bulk.