Convert foot (French metric) to span
Selected category: length.
Definition and details for foot (French metric):
In 1799 meter became the official unit of length in France. So French metric foot, or "pied metrique" was defined as one third of a metre and it was in use until 1837.
Definition and details for span:
Span is a traditional unit of length equal to 9 inches or 22.86 mm. A span was defined as the length of the span of a man's hand with fingers stretched out as far as possible. The name comes from the old English word "spann".