Yarn Weight Converter

Our Yarn Weight Converter provides instant, accurate translations across all global weight systems used in fiber arts. Whether you are converting between metric units (grams/kilograms) or imperial units (ounces/pounds), the tool utilizes established conversion formulas to maintain precision.

Simply select your starting unit and desired target unit from the dropdown menus. The converter handles complex ratios automatically, such as converting between fluid ounces and grams, ensuring you receive a reliable measurement for your yarn stash. For example, if you input 150 grams of worsted weight yarn, it will immediately calculate its equivalent in both ounces and metric weights.

We also provide reference tables and underlying formulas so that advanced users can understand the conversion logic at work. No signup or complicated setup is required—just input your weight and get precise results instantly.

To get the most accurate results, always know what unit system your primary yarn source uses. If you buy primarily from European suppliers, assume metric (grams); if from North America, assume imperial (ounces).

• Double-check the 'Net Weight': Always use the net weight listed on the yarn label, as this represents the actual fiber mass.
• Convert for Bulk Shopping: When purchasing large amounts (e.g., multiple skeins), convert to a common unit like total grams first, then calculate how many skeins that equates to.

If you are working with highly variegated or blended yarns, it is wise to measure the weight of a test swatch and compare that measurement against expected weights for your chosen yarn weight category (e.g., Sport Weight).