The square yard equals 0.836 square metres. Used in US and UK carpeting, landscaping and some small real-estate listings. A standard bedroom carpet might need 10–20 square yards of material.
Real-world: A standard US bedroom is about 15 yd² of floor. Turf sod typically sold by the square yard.
Read full square yard reference →The acre equals 4046.86 square metres — originally the area a team of oxen could plough in a day. It is the standard rural land unit in the US, UK and Canada. Suburban American lots are typically a quarter to half an acre. 640 acres equal one square mile.
Real-world: A US suburban lot is 0.25–0.5 acre. A standard UK rural property might be 5 acres. A football pitch is about 1.8 acres.
Read full acre reference →