The A4 paper I buy for my printer/photocopier says it’s 80g. Is it?

The handy table below converts the ‘grams per square metre’ to show you what each sheet of paper actually weighs; so if you have a 12 page A5 booklet (three sheets of A4 80gsm) you know it will weigh 15g.

Grammes per
Square Metre (gsm)
Actual Weight of Sheet
A3 A4 A5 1/3 A4 A6
80 10g 5g 2.5g 1.67g 1.25g
90 11.25g 5.63g 2.81g 1.88g 1.41g
100 12.5g 6.25g 3.13g 2.08g 1.56g
110 13.75g 6.88g 3.44g 2.29g 1.72g
120 15g 7.5g 3.75g 2.5g 1.88g
130 16.25g 8.13g 4.06g 2.71g 2.03g
140 17.5g 8.75g 4.38g 2.92g 2.19g
150 18.75g 9.38g 4.69g 3.13g 2.34g
160 20g 10g 5g 3.33g 2.5g
170 21.25g 10.63g 5.31g 3.54g 2.66g
180 22.5g 11.25g 5.63g 3.75g 2.81g
190 23.75g 11.88g 5.94g 3.96g 2.97g
200 25g 12.5g 6.25g 4.17g 3.13g
220 27.5g 13.75g 6.88g 4.58g 3.44g
225 28.13g 14.06g 7.03g 4.69g 3.52g
240 30g 15g 7.5g 5g 3.75g
250 31.25g 15.63g 7.81g 5.21g 3.91g
270 33.75g 16.88g 8.44g 5.63g 4.22g
275 34.38g 17.19g 8.59g 5.73g 4.3g
280 35g 17.5g 8.75g 5.83g 4.38g
300 37.5g 18.75g 9.38g 6.25g 4.69g
330 41.25g 20.63g 10.31g 6.88g 5.16g
350 43.75g 21.88g 10.94g 7.29g 5.47g
400 50g 25g 12.5g 8.33g 6.25g

Posted in: Questions on Paper Sizes and Types

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