Uncia (unit)
Appearance
Roman inch | |
---|---|
Unit system | Roman |
Unit of | length |
Symbol | 𐆑 |
Conversions | |
1 𐆑 in ... | ... is equal to ... |
SI base units | 24.6 mm |
U.S. customary | 0.97 in |
The uncia (plural: unciae) was a Roman unit of length, weight, and volume. It survived as the Byzantine liquid ounce (‹See Tfd›Greek: οὐγγία, oungía) and the origin of the English inch, ounce, and fluid ounce.
The Roman inch was equal to 1⁄12 of a Roman foot (pes), which was standardized under Agrippa to about 0.97 inches or 24.6 millimeters.
The Roman ounce was 1⁄12 of a Roman pound.