Below is a useful tool to help calculate the ink needed for an order

Size length:  cm
Size width:  cm
Ink coverage:  %
single or double sided:
Circulation:  pieces
Amount of ink:  kg

For gold and opaque white - with high densit - multiply the result by 1,5.
Calculation is based on glossy mc. For absorbent paper (HVO, recycling, biotope etc.) increase the result by 15%.  

This is just a tool, the results are not legally binding.
This calculator reflects the current state of our knowledge. It is designed to inform and advise.  Modifications may be made in the interest of technical improvement.