You've answered your own question; a cup of 271 grams weighs 271 grams - grams is a measurement of weight.
there is 236 grams in a cup of confectioner's sugar
250 grams is one cup. One cup is also 250ml.
250 fluid grams in one cup
250 grams of water in a cup.
One cup of butter = 240 grams.
150 Grams of Jaggery in one cup.
125 grams in a cup of plain white
250 grams per cup.
A cup of flour is about 112 grams.
226.8 grams is in one cup of butter
There is 220 grams of gelatine in one cup.
250 grams in one cup.