Convert from pie [Spanish] to werst

Unit Definition (pie [Spanish])
The pie is a traditional foot of Spain. The pie equals 1/3 vara or 12 pulgadas. The pie used in Spain is about 27.86 centimeters or 10.97 inches, but in Spanish Latin America the pie is generally longer.

Unit Definition (werst)
The werst is a German spelling, sometimes seen in English as well, for a Russian distance unit, the verst.