Formula to convert gsm to Kg

[ReverendCounter]

Help needed please!

If I have a sheet, say 300x400mm with a gsm of 400 and there are x1500, what is the formula to estimate the weight of the total amount, please?

So this is to work out the total weight of x1500 sheets of thick paper/thin card which are 300x400mm in size and have a density of 400 grams per sq metre.

Can't seem to find the right converter online...

(I'm guessing something like 140Kg??)

Edited by ReverendCounter on Monday 14th November 10:55

[chrisch77]

gsm = grammes per square meter

Therefore:
Work out the area of each sheet in m2
Multiply sheet area by the gsm value to get mass per sheet (grammes)
Multiply mass per sheet by quantity of sheets for total mass (divide by 1000 for kg)

[832ark]

Work out the weight of one:

0.3x0.4x400=48g

Multiply that by the quantity and convert to kg:

48x1500/1000=72kg

[woodypup59]

Its 8.3 sheets to the sq m.

Each sheet is 0.12 sq meters,so thats 48 g per sheet.

So 1500 sheets is 72 kg.

Beaten to to it, but luckily we agree ! :-)

[chrisch77]

ReverendCounter said:

Help needed please!

If I have a sheet, say 300x400mm with a gsm of 400 and there are x1500, what is the formula to estimate the weight of the total amount, please?

So this is to work out the total weight of x1500 sheets of thick paper/thin card which are 300x400mm in size and have a density of 400 grams per sq metre.

Can't seem to find the right converter online...

(I'm guessing something like 140Kg??)

Edited by ReverendCounter on Monday 14th November 10:55

0.3 x 0.4 = 0.12 m2
0.12 x 400g/m2 = 48g
48 x 1500 = 72000g = 72kg

[ReverendCounter]

Fantastic, thank you Chap/esses where applicable!

[RicksAlfas]

72kg.
If it's something you need to work out regularly drop me a line as I have a spreadsheet for it.

[ReverendCounter]

Thanks very much RA, will bear that in mind.