GSM Calculator
Calculate fabric weight or find GSM for your target weight.
Inputs
Formula: length × width × GSM ÷ 10,000 (in cm).
Calculated result
490g
per piece
Mid-weightMost 3 and 4 star hotel bath towels
- 2.04
- pieces per kg
- 490 kg
- per 1,000 pcs
140 × 70 cm × 500 GSM
Or email me this result
Specification comparison
| Row | Product | Length (cm) | Width (cm) | GSM | Weight / piece | Weight / 1,000 pcs | Remove |
|---|---|---|---|---|---|---|---|
| 1 | 490 g | 490 kg | |||||
| 2 | 539 g | 539 kg | |||||
| 3 | 810 g | 810 kg |
Click a cell to edit. Enter or the arrow keys move between rows. Type a GSM to get the weight.
Formula and assumptionsHow the number is worked out
Length × Width × GSM ÷ 10,000 = grams
Example: 70 × 140 cm at 500 GSM = 490 g. At 600 GSM, the same towel weighs 588 g.
- Sizes are finished sizes, after hemming.
- Weights are dry weights of one piece.
- Inches are converted at 2.54 cm, so the answer is the same in either unit.
- Grams per piece equals kilos per 1,000 pieces. Use it to plan freight.
- Borders and dobby add a little weight. The calculator treats the towel as one even fabric.
- Weight to GSM gives the average for the whole towel. A cut square gives the GSM of the plain area.
Not sure which GSM you need? Read the towel GSM guide.
GSM guideClasses, an interactive slider and a home test
| GSM | Class | Typical use |
|---|---|---|
| Under 350 | Lightweight | Gym, travel and quick-dry towels |
| 350-449 | Economy | Budget hotels, salons and healthcare |
| 450-549 | Mid-weight | Most 3 and 4 star hotel bath towels |
| 550-649 | Premium | 5-star hotels and boutique properties |
| 650 and up | Luxury | Spa and resort weight |
What the number feels like
Drag from 300 to 800 GSM. Watch the loops, the weight of each size and the price change.
Drag to pick a towel weight
Mid-weight. Most 3 and 4 star hotel bath towels.
Bars compare weights from 300 to 800 GSM. They are a guide, not lab results.
The loops
Weight per piece, drawn to scale
45 g
Face
30×30
140 g
Hand
40×70
490 g
Bath
70×140
810 g
Bath sheet
90×180
1,000 bath towels at 500 GSM weigh about 490 kg.
Bath towel 70×140 cm at 500 GSM, FOB Cochin
$2.20–$2.80 per piece · Mid-range band (500–550 GSM)
Test the GSM yourself
You need scissors, a ruler and a kitchen scale that reads to 0.1 g.
Step 1
Cut a 10 × 10 cm square
Cut from the plain middle. A border or hem adds weight and gives a false high reading.
Step 2
Weigh it
Use a scale that reads to 0.1 g. Let the towel rest 24 hours in normal room air first.
Step 3
Multiply by 100
5.0 g × 100 =
500 GSM
A 10 × 10 cm square is 1/100 of a square metre. So its weight × 100 is the GSM.
Is the result fair?
A 500 GSM order may test from 475 to 525. That is the normal ±5%.
Inside the green band: a normal variation.
Below 475: a valid quality claim, not rounding.
Indicative pricingPublished FOB Cochin bands by weight
Our published FOB Cochin bands. No form needed. For a quote on your spec, get the price list.
Bath towel, 70 × 140 cm, price per piece
FOB Cochin · plain dyed · USD
400-450 GSM
Economy
500-550 GSM
Mid-range
600 GSM
Luxury
650-700 GSM
Ultra
Trial runs start at 500 pieces. Wholesale pricing starts at 2,000 pieces per SKU. Ring-spun and zero-twist sit at the top of each band. Borders and custom packing cost extra.
Heavier towels also fill a container faster
Bath towels in one 40 ft high-cube container.
500 GSM
45,000-50,000 pieces
700 GSM
32,000-35,000 pieces
Same box, about a third fewer towels. Freight per piece goes up with weight.
Two easy ways to start
No account, no sales call, no import paperwork to fill in. Pick whichever suits you.
Buying a full container, or need Incoterms and compliance documents? Use the full RFQ form.
Common questions
What does GSM mean in textiles?+
GSM is grams per square metre - the trade's standard measure of how much fabric is packed into a given area. A higher number means a heavier, denser towel that usually absorbs more and dries slower. It's the single spec buyers ask for first, before colour or trim.
What GSM is best for hotel bath towels?+
Most full-service hotels order 500-600 GSM. Budget properties run leaner at 400-500 GSM to save on laundry weight and drying time. Five-star resorts often push to 600-700 GSM for the plush feel guests expect - but that comes with slower drying and higher shipping weight, so it's a trade-off, not a free upgrade.
How do I calculate the weight of a towel from its GSM?+
Multiply length (cm) by breadth (cm) by GSM, then divide by 10,000. A 70cm × 140cm bath towel at 500 GSM comes out to 490g - use the calculator above if you'd rather not do the arithmetic.
What is the difference between 400 GSM and 600 GSM towels?+
A 400 GSM towel is light and dries fast - it's what you see in gyms, on airlines, and in budget hotels that turn rooms over quickly. A 600 GSM towel is dense and holds a lot more water, which is exactly what a luxury hotel or spa wants, at the cost of a longer dry cycle.
What GSM is used for bed sheets?+
Bed sheets aren't usually quoted in GSM - the trade uses thread count instead. As a rough equivalent, percale sheets (200-400 TC) run 80-120 GSM, and heavier sateen weaves (400-600 TC) land around 120-160 GSM.
What is your minimum order — can I buy just one carton?+
For towels our minimum is 500 pcs trial / 2,000 pcs wholesale. "Per SKU" means per size and colour combination. Smaller towel orders can join a run we already have in production, in that run's size, GSM and colour. Tell us your size and GSM and we will list the runs that are close. Bed linen starts at 50 pcs per size at 200, 300 and 400 TC, standard or custom sizes (250 TC subject to availability). Bathrobes start at 50 pcs per size in white, standard or custom sizes (colours on enquiry). A custom towel below 500 pieces costs more per piece, because a loom set-up and a dye lot cost the same for 100 towels or 1,000. We will tell you that plainly before you commit.
How much does a sample cost and how fast do I get it?+
Paid, with sample and courier cost quoted upfront. Courier from Kerala to most countries runs $35–$60 via DHL or FedEx and arrives in 7–14 days. We recommend asking for two GSM weights side by side — most buyers change their mind about weight once they hold both. Your sample quote says whether the charge is credited against a bulk order.
How do I pay, and what protects me if the goods are wrong?+
50% advance, 50% on production completion (before dispatch). The balance falls due only once the finished goods have passed our AQL 2.5 inspection against your approved sample, and you get photos of the actual production run before you pay it. You can also appoint a third-party inspector (SGS, Bureau Veritas or Intertek, roughly $300–$500 for a single inspection) to check the goods at the specialist unit before you release the balance; we will schedule it and give them access. If a shipment does not match the approved sample, we remake or credit it. For larger orders, an L/C at sight is accepted instead.
Do I need an import licence to buy this?+
In most countries, no — not for commercial quantities of ordinary cotton textiles. In the US, UK, EU, UAE, Australia and Canada, a business tax or VAT registration number is normally all that is required, and your freight forwarder or customs broker files the entry for you. Some markets do require an importer registration (Saudi Arabia and Egypt among them). Tell us your country and we will tell you plainly what you need before you commit any money.
What does it cost delivered to my door, not FOB?+
FOB means the price to get goods loaded onto the ship at Cochin port — freight, duty and local delivery are on top. As a rough guide, sea freight adds $0.15–$0.45 per towel on a shared container and less on a full one; import duty is typically 6–12% depending on your country. We quote CIF (freight included) or DDP (everything included, delivered to your address) on request, so you can compare one final number instead of guessing. Our landed-cost calculator does the arithmetic for you.
Can I order without any certification requirement?+
Yes, absolutely. Certification is not a hoop we make you jump through — it is simply how we already manufacture. Every piece is made under OEKO-TEX Standard 100 whether you ask for the certificate or not, and it costs you nothing extra. If you do not need the paperwork, do not ask for it and nothing about your order or price changes. Buyers who supply hotel groups or EU retailers usually want the documents; an Airbnb host or a salon owner almost never does.
How long from order to goods in my hands?+
30–45 days for production, plus shipping. Sea freight is 10–16 days to the Gulf, 22–30 days to Europe and the UK, 28–38 days to the US east coast, and 18–25 days to Australia. Air freight cuts that to 3–5 days but costs roughly 6–8× more per kilo, so it is worth it for samples and rarely worth it for bulk. Plan on about 8–10 weeks door to door for a first sea shipment.
Are you a manufacturer or a trading company?+
Fair question, and one you should ask everyone. Yes, we are a manufacturer and exporter, not a trader. We run production stage by stage through specialist units: spinning, weaving, dyeing, finishing, stitching, embroidery and labelling are each done by a unit that specialises in it, and we own the spec, the approved shade, the AQL 2.5 inspection and the shipment as exporter of record. You deal with one accountable party, not a chain of middlemen, and you can video-call the unit running your order. We will give you our IEC (Import Export Code) and GST registration to check.
Can you put my brand on it?+
Yes. Woven labels, printed care labels, embroidered logos, custom packaging and retail barcodes are all standard. Logo embroidery adds about $0.30–$0.60 per piece; a custom woven label adds about $0.06–$0.12. Private-label MOQ is 2,000 pieces per SKU rather than 500, because the label and packaging themselves carry a minimum run.
Related pages
Import Duty & FTA Calculator
MFN duty versus trade-agreement preference, and the document that claims it.
Cost Per Wash Calculator
Lifetime cost of two linen specs - opening fill, replacement, laundry by the kilo.
Hotel Linen Budget Calculator
Rooms and par level into a costed opening order, capex per room and annual replacement.
HS Code Finder
Guided classification for towels, bed linen and bathrobes, with the reasoning.
Official references
Duty rates, HS codes and certification rules change. Check them with the issuing body before you order.
