{"product_id":"kromski-wpi-lehre","title":"Kromski WPI Gauge","description":"\u003ch2\u003eMeasuring yarn weight — simply and reliably\u003c\/h2\u003e\n\u003cp\u003eAnyone who processes handspun yarn into knitting or weaving projects needs to know its yarn weight. Not for aesthetic reasons — but because stitch count, needle size, and thread spacing all depend on it. The established measurement method in hand spinning is called \u003cstrong\u003eWPI: Wraps Per Inch\u003c\/strong\u003e. You wrap the yarn tightly around a ruler or tool, count the wraps across one inch, and can thereby determine the yarn weight category (lace, fingering, DK, bulky, etc.).\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eKromski WPI Gauge\u003c\/strong\u003e is a small wooden tool made exactly for this purpose. It has a milled groove of the correct width (1 inch = 2.54 cm) that you wrap the yarn around and read off. No ruler, no guessing, no holding with both hands — the gauge sits stably in the hand and gives a reproducible result.\u003c\/p\u003e\n\n\u003ch2\u003eWhat WPI is used for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClassifying handspun yarn before knitting it\u003c\/li\u003e\n\u003cli\u003eChecking whether a yarn matches a knitting pattern (WPI categories are internationally consistent)\u003c\/li\u003e\n\u003cli\u003eCalculating the correct sett (threads per inch) when weaving\u003c\/li\u003e\n\u003cli\u003eComparing two yarn batches without needing scales\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions about the WPI Gauge\u003c\/h2\u003e\n\n\u003ch3\u003eWhat do the WPI categories mean?\u003c\/h3\u003e\n\u003cp\u003eAs a rough guide: \u003cstrong\u003e30+ WPI\u003c\/strong\u003e = laceweight, \u003cstrong\u003e20–26 WPI\u003c\/strong\u003e = fingering\/sock weight, \u003cstrong\u003e14–18 WPI\u003c\/strong\u003e = sport to DK, \u003cstrong\u003e10–14 WPI\u003c\/strong\u003e = worsted, \u003cstrong\u003e6–9 WPI\u003c\/strong\u003e = bulky, \u003cstrong\u003ebelow 6\u003c\/strong\u003e = super bulky\/art yarn. These ranges vary slightly by source — the gauge delivers the measurement; the classification depends on the project.\u003c\/p\u003e\n\n\u003ch3\u003eDo I have to measure in inches or can I use centimetres?\u003c\/h3\u003e\n\u003cp\u003eWPI is an anglophone convention (Wraps Per Inch), but the standard is used worldwide — knitting patterns, weaving setts, and yarn manufacturers all use it. The gauge is designed for 1 inch (2.54 cm). To convert to WPC (Wraps Per Centimetre): WPC = WPI ÷ 2.54.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use the gauge for weaving yarn too?\u003c\/h3\u003e\n\u003cp\u003eYes — in weaving, WPI is often used to estimate the sett (warp threads per inch). A rough rule: the sett for plain weave is approximately WPI ÷ 2. The gauge gives the basis; the sett depends on the weaving style and fibre type.\u003c\/p\u003e","brand":"Kromski","offers":[{"title":"Default Title","offer_id":62629608161610,"sku":"502-1","price":9.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4911\/1114\/files\/KROMSKI-SONS_Wooltober-2024-1-photo-only.jpg?v=1783334007","url":"https:\/\/spinningwheelsdirect.com\/products\/kromski-wpi-lehre","provider":"Berliner Spinnräder","version":"1.0","type":"link"}