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 metric dunam equals 1000 square metres exactly. It is the standard land unit in Israel, Palestine, Turkey and parts of the former Ottoman Empire. Other regional "dunams" have existed historically, but the metric dunam (1000 m²) is the modern standard.
Real-world: An Israeli small farm might be 50 dunams (5 ha). Agricultural yields sometimes quoted per dunam.
Read full dunam reference →