Erin Krakow's exact height has not been made public. Her height is likely to be between 5' 8" and 5' 10" judging from photos of her standing next to actors whose heights are known.
In photos for her television show "When Calls the Heart," Krakow can be seen standing next to costars Daniel Lissing and Lori Loughlin. Lissing is listed as standing 5' 11" tall and Loughlin is 5' 5" tall. Krakow is significantly taller than Loughlin and slightly shorter than Lissing. The height of the heels of their shoes cannot be determined, but the differences would suggest Krakow's height is very close to 5' 9".