One Block Wonder Quilt Calculator
Upload a fabric image to create and arrange kaleidoscopic hexagon blocks for your quilt.
Settings
Fabric Layout
This shows how triangles will be cut from your fabric.
One Block Wonder
The Concept
One Block Wonder quilts transform a single fabric into a kaleidoscopic arrangement. Each hexagonal block contains six identical triangles cut from the same position across six layers of fabric.
When arranged together, these hexagons create mesmerizing patterns that bear little resemblance to the original fabric. The technique reveals hidden patterns and color combinations, making every quilt unique.
Fabric Selection
Your fabric choice determines the success of a One Block Wonder quilt. The transformation happens because of how the pattern interacts with itself in the kaleidoscopic arrangement.
Pattern Scale
Choose fabrics with large motifs and generous repeat sizes (12″+ ideal). The scale allows for sufficient variation between hexagons.
- Large florals
- Landscape prints
- Abstract designs
- Small repeats
- Tight geometrics
- Directional prints
Color Variation
Look for fabrics with multiple colors (5+ hues) and significant contrast between light and dark areas. This creates dramatic kaleidoscopic effects.
- Multicolor prints
- High contrast designs
- Color gradients
- Monochromatic fabrics
- Low contrast prints
- Very dark fabrics
Visual Texture
Fabrics with varied elements create more interesting hexagons. Look for designs with distinct shapes, varying sizes, and organic flow.
- Botanical prints
- Watercolor effects
- Painterly designs
- Regular, repeating patterns
- Stripes and checks
- Text-heavy designs
Using the Calculator
Our calculator helps you preview the transformation before cutting any fabric, allowing for experimentation with various starting points and arrangements.
Upload Fabric Image
Upload a clear, high-resolution image of your fabric. The image should show at least one complete pattern repeat for accurate visualization.
Set Measurements
Enter the physical width of your fabric (typically 42-44″ for quilting cotton). Then select your triangle size.
Triangle sizes typically range from 3¾” to 5″ per side. Smaller triangles create more detailed hexagons but require more cutting and piecing. Larger triangles create bolder patterns with less detail.
Select Starting Point
Click directly on your fabric image to set where cutting will begin. This position dramatically affects the resulting hexagons.
Experiment with different starting points. Even a small shift can create entirely different hexagon patterns. Target interesting motifs or colors for more dramatic effects.
Generate & Arrange
After generating hexagons, explore different arrangements:
Double-click any hexagon to rotate its pattern and explore different orientations.