Soil erodibility or K factor is a quantitative description that indicates soil susceptibility to be eroded. It is considered the most important factor to predict erosion and it reflects the fact that different soils erode at different rates when the other factors that affect erosion are the same. In this study, the K factor of the soils in the central coffee zone of the department of Caldas located between 4°55' and 5°42' NL and 75°45' and 75°20' WL 4°55' NL 5°42' was determined. 72 points of soil sampling were located including 14 cartographic units, which were georeferenced using a global positioning system (GPS). In each point a 10-kg soil sample was taken in the first 10 cm of the soil layer; then, it was taken to laboratory to directly determine K factor and through a rainfall simulator of nozzles type Vee-jet 80100 an intensity of rain of 86 mm.h -1 was applied during 1 hour. Some soil properties were determined and correlated with K factor whose values oscillated between 0.0008 and 0.0086 t.ha.h.MJ -1 .ha -1 .mm -1 . Correlation between soil erodibility and the estimated mean diameter (r=-0.82**), bulk density (r=0.54*) and soil penetration resistance (r = -0,54*). With the erodibility average values per soil unit, the map for the zone of study was made with the help of geographic information systems.