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Corrugated Price per Ton to Price per m² Calculator

Translate a corrugated board quotation per metric tonne into equivalent kilogram and square-metre prices. Actual board GSM determines the area yield of the quoted mass.

Use a saved product specification (optional)

Enter your values

First time using this calculator?

Replace the example values with figures from your supplier sheet or measurements. Choose the unit beside each value. Results update as you type; fix any highlighted field before using the result.

GSM means grams per square metre. Net weight excludes the core and other packaging. MOQ means the minimum order quantity. An optional field can stay blank unless the result you need depends on it.

Prices keep the selected currency; changing its label does not convert an exchange rate. Save or export the result after checking your inputs.

EUR/tonne
g/m²
Help with actual board gsm

GSM is the weight of one square metre of material, in grams. Find it on the supplier specification; use the complete laminate value for layered film.

Unit label only. No currency conversion.

Results update as you edit. Nothing is saved until you choose to.
Example result — replace the inputs

Board material cost per m²

€0.4000/m²
Board material cost per kg€0.8000/kg
Board mass per m²0.5000 kg/m²

A metric tonne is 1,000 kg. Enter actual board GSM; no weight or strength is inferred from flute.

Price/m² = (price/metric tonne ÷ 1,000) × GSM ÷ 1,000

(800 ÷ 1,000) × 500 ÷ 1,000 = 0.4/m²
Example result — replace the sample valuesThe formula works, but the values are illustrative.

Saved calculations stay in this browser. No account or cloud backup is created.

Save to a product project (optional)Choose or create a saved product project ↗

This is an illustrative example. Saved or transferred values must be checked against your job.

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Calculated from your inputs. Confirm specifications with your supplier.

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Vary one input and inspect board material cost per m²

All other entered inputs stay fixed. Ranges are your scenarios, not statistical confidence or supplier performance predictions. This uses the same validated calculator engine.

The formula, made clear.

Price/m² = Price/tonne × Board GSM ÷ 1,000,000

The conversion has two steps: divide the tonne price by 1,000 to find price per kilogram, then multiply by kilograms of board per square metre. The combined denominator is one million because board GSM starts in grams. This is a change of commercial basis, not a prediction of finished-box cost or a conversion between board grades.

How to use this calculator

  1. 01

    Enter the supplier price per metric tonne.

  2. 02

    Enter measured or specified complete-board GSM.

  3. 03

    Review kilogram and area equivalents before comparing identical board specifications.

A calculation you can check

The example normalizes a tonne-based corrugated quotation to the unit price required for area-based blank costing.

Board price per metric tonne
800 EUR/tonne
Actual board GSM
500 g/m²
(800 ÷ 1,000) × 500 ÷ 1,000 = 0.4/m²
Board material cost per m²€0.4000/m²

Check the displayed formula and units against your quotation. Use measured GSM, net weight and actual layout dimensions where available. Default densities are planning assumptions, not certified material properties. Calculated cost does not certify strength, compatibility or safe loading.

Method, units and material assumptions ↗