So, this is was my problem. There's a fabulous-looking cookie/biscuit recipe which is written for people cooking in Britain. All the measurements for the dry ingredients are in weight, not volume. I can find any number of ways to convert metric volume to something I can understand, but I am also dead positive that a cup of sugar weighs more than a cup of flour, so without a kitchen scale I seem to be unable to make these cookies (without a lot of trial-and-error which I frankly don't have the resources or patience for).

Or so I thought before one final Google-search.

Solution: A conversion thingy where you choose a substance and get the approximate weight per volume. OMG. I really love science a lot. Pardon me while I go make some cookies biscuits.

(Crossposted far and wide for the edification of all.)