Farm measures are units of measurement used to measure land and crops. ACRES (5 letters) is a unit of area used in the imperial and US customary systems, equal to 4, 840 square yards or 43, 560 square feet. Hectares (8 letters) is a metric unit of area, equal to 10, 000 square meters. Rods (4 letters) is an old English unit of length, equal to 5.5 yards or 16.5 feet. Bales (5 letters) is a large bundle of hay, straw, or cotton, typically compressed and bound with wire or twine.