Sewing Tools
Free, instant calculators for the workroom. More tools coming soon.
Thread Size Converter
Tex · dtex · denier · Nm · Ne · ticket
Thread Consumption
Estimate thread & cones for a production run
Thread Size Converter
Enter a thread number in any system and instantly see it in all the others.
Converts instantly to every other system
Tex· entered
40.0
g / 1000 m
dtex
400.0
g / 10 000 m
Denier
360.0
g / 9000 m
Nm
25.0
metric count
Ne
14.8
cotton count
Ticket (≈)
75
Tkt no.
Tex, dtex, denier, Nm and Ne conversions are exact. Ticket (Tkt) is an approximate, rounded trade number and can vary slightly by thread type and maker — treat it as a guide. Tip: thread should fill roughly 40–50% of the needle eye.
Thread Consumption Calculator
Estimate how much thread (and how many cones) a seam, garment or full production run needs.
Per garment
2.5 m
Run, before waste
250 m
Total incl. 15% waste
287.5 m
Cones needed
1
Estimate for planning only. Thread consumption is based on the stitch's standard ratio (× seam length); actual use varies with fabric thickness and stitch density — adjust the ratio field to fine-tune. Ratios are industry references (ISO 4915 stitch classes).
Not sure which needle or thread size to use? See the Thread & Needle Size guide →