Yarn2Yarn
Skein calculator

Estimate the yarn you actually need.

Choose Simple or Precise, drop your file or type your dimensions, enter your swatch mass — get a weight estimate with a safety range so you never run out mid-row.

Open the calculator
Mode 1

Precise

Drop a .yy or .zip file. We compute the exact area from your pattern.

Mode 2

Simple

Just enter length × width. Add mirror × 2 if you're knitting both sides.

Mode 3

Direct area

You already know the surface? Type it in cm² and skip ahead.

How it works

Swatch in. Yarn mass out.

  1. 1

    Pick a mode — Precise (upload .yy / .zip), Simple (length × width) or Direct area.

  2. 2

    Choose your unit system — grams & centimetres, or ounces & inches.

  3. 3

    Enter your swatch width, height and mass — the bigger the swatch, the better.

  4. 4

    Read your estimated mass, plus a safety range that always adds +10 %.

Quick note: bigger swatches give better estimates. The +10 % margin keeps you safe.

Try it now