I'm struggling to work out the GSM of some card I have promised someone.I weighed 10 sheets to get a more accurate reading, and that was 160gr.
One sheet is 210mm by 300mm, which I think converts to 0.06 of a square metre, and weighs 16 gr.
How on earth can I work out the grams per square metre please.
Totally lost it here this afternoon trying to get the correct answer.
Grateful for any help, thanks.
Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.