Convert from pie [Spanish] to stride [great]

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 (stride [great])
Distance between consecutive prints of the same foot in a track, measured from the same point on each foot.