The copper calculation is very easy to understand with our formula.

If you have any questions, feel free to contact us personally at any time.

First some terms:


How to calculate the copper value
This is a calculated quantity for the calculation of the copper price.
The unit for calculating the price is given in kg / km.
The multiplier is always the value 9.6
Thus, the cross section is multiplied by the factor 9.6 in order to determine the copper code. Based on the following examples, the values ​​are as follows:
0.5mm = 4.8kg/km
0.75mm = 7.2kg/km
1.00mm = 9.6kg/km
1.50mm = 14.4kg/km

Here you can easily calculate the Kuperleitzahl on the basis of the cross section itself:

Cross section (mm):


Copper weight (kg/km):

DEL oder LME
Since the copper price is traded on the stock exchange, there are two stock exchanges nationally and internationally.
DEL stands for German electrolytic copper for conducting purposes and represents the national stock exchange in Germany.
LME is the London Metal Exchange and is the international stock exchange for copper.
The unit for calculating the price is given in / km.

Copper basis
The offered line price includes in our webshop all copper surcharges incl. VAT.
In order to lower the price, offers often include a price without copper (Cu0) or only on a so-called copper basis such as copper Cu150 or Cu153,39 offered. Therefore, using the following formulas, it is always advisable to convert the price to a comparative basis.

Conversion of an exemplary offer price to full copper

Example 1: If the offer price of the cable does not contain copper

( Copper weight x (DEL + 1% added cost) / 100 ) + base price

Beispiel 2: If the offer price of the cable contains a copper surcharge based on Cu150

( Copper weight x ((DEL + 1% added cost) - 150) / 100 ) + base price

Beispiel 3: If the offer price of the cable contains a copper surcharge based on Cu153.39

( Copper weight x ((DEL + 1% added cost) - 153.39) / 100 ) + base price