Yarnsy
🧶
Yarn Measurement Studio
WPI · TWISTS PER INCH · TWIST ANGLE — calibrated to a US penny
Photo Tips for Best Results
- Lay yarn on a dark or strongly contrasting background
- Tape yarn top and bottom so it lies completely flat — do not stretch
- Place the penny 1/2 to 1 1/2 inches from the yarn
- Shoot straight down from directly above
- Good even lighting, no shadows across the yarn
Number of plies:
Pixel Measurements (from image)
—
px (= 19.05mm)
—
px/mm
—
px
—
mm
—
wraps/inch
🔍 Analyzing twist structure…
CYC WPI Reference (ranges overlap by design)
| CYC # | Weight Name | WPI |
|---|---|---|
| 0 | Lace | 30–40+ |
| 1 | Super Fine (Fingering/Sock) | 14–30 |
| 2 | Fine (Sport/Baby) | 12–18 |
| 3 | Light (DK) | 11–15 |
| 4 | Medium (Worsted/Aran) | 9–12 |
| 5 | Bulky | 6–9 |
| 6 | Super Bulky | 5–6 |
| 7 | Jumbo | 1–4 |
Source: craftyarncouncil.com/standards/how-measure-wraps-inch-wpi