Fabric Weight & Price

When is this template useful?

Use this template when a supplier quotes fabric by kilogram but you plan purchases by length. It connects fabric specifications, price and order quantity in four formulas. Change the quoted price once to update both the price per metre and the order cost.

Which numbers do you enter?

This illustrative US example uses USD and metric fabric specifications, not market prices. Start with 200 g/m², an open width of 1.5 m and 100 m of fabric. Enter your own price per kilogram. GSM and width must be positive; length and price may be zero but not negative. Check these limits yourself: the canvas does not enforce them.

Input	Default
GSM (g/m²)	200
Open width (m)	1.5
Price per kg	$12
Order length (m)	100

How does the calculation work?

1. Weight per metre (kg/m) = GSM (g/m²) × open width (m) ÷ 1000.
2. Price per metre = weight per metre × price per kilogram.
3. Theoretical net weight (kg) = weight per metre × order length (m).
4. Fabric cost = theoretical net weight × price per kilogram.

A metre of fabric is an area 1 m long and as wide as the roll. GSM is mass per square metre, so multiplying by width gives grams per linear metre; dividing by 1000 converts grams to kilograms. The weight-per-metre result shows up to four decimals; dependent formulas use the unrounded value.

200 × 1.5 ÷ 1000 = 0.3 kg/m

0.3 × 12 = $3.6/m

0.3 × 100 = 30 kg; 30 × 12 = $360

The division by 1000 follows the SI conversion from grams to kilograms; see NIST’s SI conventions.

What changes with price or order length?

Compare the default quote, a 10% higher price per kilogram and a separate 50 m order at the original price. Changing price leaves weight unchanged; halving the length halves order weight and cost without changing the price per metre. The download starts with the default 100 m order.

Result	Default quote	Price +10%	50 m order
Weight per metre (kg/m)	0.3	0.3	0.3
Price per metre	$3.6	$3.96	$3.6
Theoretical net weight (kg)	30	30	15
Fabric cost	$360	$396	$180

What are the limits?

• Use uniform, open-width fabric. GSM and width must describe the same fabric condition and billed area. Do not mix finished GSM with unfinished width or substitute usable cutting width when the supplier charges for full-width fabric.

• This is a theoretical fabric-only estimate. Freight, taxes, packaging, roll cores, cutting loss, minimum orders and whole-roll purchasing rules are excluded. It is neither a retail selling price nor a final invoice.

• Confirm specifications, measured net weight and settlement terms with the supplier. For a price quoted per metre, yard or pound, first convert to the units used here; entering the same number under a different unit changes the result.

Common questions

Can I enter the folded width of tubular fabric?

No. This model assumes one open sheet. Confirm the equivalent unfolded width with the supplier; a lay-flat tube has two layers. Do not enter its folded width as though it were the full open width.

Is GSM the same as grams per metre?

No. GSM means grams per square metre. Grams per linear metre depend on the width as well. Here 200 g/m² × 1.5 m = 300 g/m, or 0.3 kg/m. The same GSM at 1.6 m gives 0.32 kg/m.

How do I keep my own version?

Import the CALVX file into Calvance, check the example results, then edit your inputs. Duplicate a canvas to keep alternatives. Each imported or duplicated canvas counts toward your plan’s allowance. Compare plans.

How to import your template

1. Save the file. Choose Download template and save the .calvx file to Files on your iPhone or iPad. From a computer, you can send it to your device with AirDrop.
2. Open Import. In All Canvases in Calvance, tap the add button to open the template screen, then choose Import.
3. Choose the file. Select the saved .calvx file to create your own canvas. Importing uses one canvas from your allowance.
4. Edit and check. Check the results against the worked example, then add your numbers. Duplicate the canvas to keep different versions.

Download .calvx file