Density of loose sugar is already between 0.7-1 grams / cm^3. Compressed sugar as in a cube weighs more, depending on the compression / packing factor. But 1cm^3 sugar cubes are rare, chances are you only think they are that big, while they are actually more near the standard cubes 16x16x12mm^3, which again triples the weight.
You kind of prove my point here: people typically fail to guess weights of a few grams.
Edit: corrected density, I had previously used the actual density, not the density of loose sugar, which is less.
Density of loose sugar is already between 0.7-1 grams / cm^3. Compressed sugar as in a cube weighs more, depending on the compression / packing factor. But 1cm^3 sugar cubes are rare, chances are you only think they are that big, while they are actually more near the standard cubes 16x16x12mm^3, which again triples the weight.
You kind of prove my point here: people typically fail to guess weights of a few grams.
Edit: corrected density, I had previously used the actual density, not the density of loose sugar, which is less.