Tables of Metric Conversions

Tex, lea, yarn conversions, and standard sizes of linen and cotton yarns used in weaving..

Bamboo Weaving Reed

Metric Conversion Tables

English Metric
1 in. 2.54 cm
.39 in 1 cm
1 ft. 30.48 cm
1 yd. (3 ft.) .91 m.
39.4 in. 1 m.
1 oz. 28 gr.
1 lb. 454 gr.
2.2 lb. 1 kg.

Worsted Wool Yarn Conversions

Size/Ply =(560 x size)/ply YPP
1s (560 x 1)/1 560
16s (560 x 16)/1 8960
16s2 (560 x 16)/2 4480

Cotton Yarn Conversions

Cotton Count
Size/Ply =(840 x size)/ply YPP
1 (840 x 1)/1 840
6/2 (840 x 6)/2 2520
8/2 (840 x 8)/2 3360
10/2 (840 x 10)/2 4200
12/2 (840 x 12)/2 5040
6/3 (840 x 6)/3 1680
8/4 (840 x 8)/4 1680
8/6 (840 x 8)/6 1120

Linen Yarn Conversion

Lea (Nel) =(300 x lea)/ply YPP Nm Tex
meters/gram gram wt. per 1000 m.
No. 1 Lea (300 x 1)/1 300 .6 nm 1659 Tex
No. 4 (300 x 4)/1 1200 2.4 nm 420 Tex
No. 8 (300 x 8/1 2400 4.8 nm 165 Tex
No. 10 (300 x 10)/1 3000 6 nm 165 Tex
No.12 (300 x 12)/1 3600 7.2 nm 138 Tex
No. 16 (300 x 16)/1 4800 9.6 nm 103 Tex
No. 20 (300 x 20)/1 6000 12 nm 83 Tex

Other Conversion Charts
Table of Setts

Crochet Hook Sizes
A table for conversion of crochet hook sizes: metric, US and UK.

Knitting Needles
A conversion table for UK, US and Metric knitting needles.

Reed Conversions
Table of metric and Imperial measurements for reed sizes.

Hand Weaving Books
The Key to Weaving: A Textbook of Hand Weaving for the Beginning Weaver
The Weaver’s Companion (The Companion Series)
Learning to Weave
The Big Book of Weaving: Handweaving in the Swedish Tradition: Techniques, Patterns, Designs and Materials
The Handweaver’s Pattern Directory
A Weaver’s Book of 8-Shaft Patterns: From the Friends of Handwoven
Krokbragd: How to Design & Weave
Doubleweave: On Four to Eight Shafts
Double Weave: Theory and Practice<
Magic of Doubleweave: The Best of Weaver’s (Best of Weaver’s series)

Author: Paivi Suomi

I've had an interest in weaving, looms, yarns and textiles since I was a small child. I learned to knit, crochet, sew, do needlepoint at my mother's knee. My grandmother was a Saami from northern Norway. I am very interested in studying more about traditional Saami and Finnish style weaving and handicrafts. Paivi Suomi