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The Thread Count to GSM Converter estimates fabric weight (GSM = grams per square meter) from bedsheet thread count and fabric type. GSM is the more accurate quality metric than thread count alone — it measures actual fabric density and weight. Higher GSM (within fabric type) means denser, more durable, often warmer sheets. The calculator accounts for yarn ply (single, 2-ply, multi-ply) since marketing-inflated thread counts often use multi-ply yarns to claim higher numbers without proportional quality improvement.
Formel
- TC
- Thread Count (threads/sq inch) — Horizontal + vertical threads per square inch
- GSM
- Grams per Square Meter (g/m²) — International fabric weight standard
Steg-för-steg-guide
- 1Enter thread count (sheet label number)
- 2Select fabric type (percale, sateen, flannel, linen, bamboo, etc.)
- 3Select yarn ply: single-ply (legitimate quality), 2-ply (twisted), multi-ply (marketing)
- 4Calculator estimates GSM and quality category
- 5Quality categories: lightweight (<100), standard (<150), premium (<200), luxury (<280), heavy (>280)
- 6Thread count assessment flags suspicious counts above 800 as likely multi-ply inflation
Lösta exempel
Vanliga misstag att undvika
- ✕Treating thread count as universal quality metric — above 600 it's often marketing inflation
- ✕Comparing percale to sateen on thread count alone — completely different fabric structures
- ✕Ignoring yarn ply — 1000-count 2-ply sheets often inferior to 400-count single-ply
- ✕Assuming higher GSM = better — too heavy for hot sleepers, too thin for winter use
Vanliga frågor
What's the ideal thread count for sheets?
300-500 single-ply is the sweet spot for most uses. Below 200 feels thin. Above 800 typically indicates multi-ply marketing inflation. Quality matters more than count — Egyptian cotton 300-count beats poor-quality cotton 1000-count.
What is GSM and why does it matter?
GSM (grams per square meter) measures actual fabric weight regardless of thread count manipulation. More direct quality measure. Light bedding 90-180 GSM, medium 180-240, heavy 240-300+. Linen typically 140-200 GSM, cotton percale 90-140, sateen 110-160.
What's the difference between percale and sateen?
Percale: one-over-one-under plain weave. Crisp, cool, breathable, matte finish. Better for hot climates and warm sleepers. Sateen: four-over-one-under weave. Silky, smooth, slightly warmer, sheen finish. Better for cool climates and luxe feel preference.
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