Cubit
A traditional unit of length based on the distance from the elbow to the tip of the middle finger. Its size varied across cultures and periods.
Anthropometric units: Units of measurement defined using dimensions of the human body. The cubit belongs to this family of body-based measures.
Royal cubit: A long cubit used in ancient Egypt and elsewhere, commonly divided into seven palms or 28 digits. Its subdivisions made the Egyptian cubit more precise than an informal body measure.
Ancient Egyptian architecture: The architecture of ancient Egypt, including temples, tombs, and monumental structures. Cubit-based planning helped set dimensions in Egyptian building projects.
Meter: The base unit of length in the International System of Units, defined through the speed of light. Unlike a regional cubit, the meter has a globally agreed modern definition.
Ancient Egyptian units of measurement: A system of measures used in ancient Egypt, including units of length, area, capacity, and weight. Egyptian cubits show how a body-based unit entered a formal measurement system.
Egyptian cubit rod: A marked measuring rod from ancient Egypt, used to represent and reproduce a cubit standard. Rods preserved physical evidence of how Egyptian cubits were calibrated.
Great Pyramid of Giza: A pyramid built for Pharaoh Khufu at Giza during Egypt’s Fourth Dynasty. Its dimensions are often analyzed using ancient Egyptian length units.
Yard: A unit of length equal to three feet, defined internationally as exactly 0.9144 meters. The yard demonstrates how a historical unit can acquire a fixed modern value.
Hand (unit): A unit of length equal to four inches, used chiefly to measure the height of horses. Like the cubit, the hand turns a body part into a standard of length.
Nippur cubit: A length standard associated with an ancient measuring rod found at Nippur in Mesopotamia. It illustrates a Mesopotamian cubit standard distinct from Egyptian measures.