You might've misread the definition of hectare, (obviously) defined as "100 ares", which my brain wants to read as 100 "acres". But nope, 1 acre = 0.4something hectares. 'Cuz that makes sense. I'm going to try and phase out using the acre (imperial) in favor of the are from now on. This all also makes you realize that the recent 20 million tree-planting campaign was almost entirely symbolic. But we need that, too. edit to ruin Saturday: 1 square mile = 640 acres, and it absolutely infuriates me, because it means that a square with an area of 1 acre has sides of length 1/sqrt(640) miles. A literally irrational number of miles. edit 2: 1/sqrt(640) is curiously close to the conversion between millimeters to inches: 3.953E-2 vs. 3.937E-2, respectively. Anyway, it's best to just think about a square mile as a plot of land 8 acres wide by 80 acres long, and fahgettabout the metric junk propaganda with all the tens of things. Too easy