The 28-year-old actress says her mother Goldie Hawn and stepfather Kurt Russell brought her up to feel comfortable in her own skin and she finds shedding her clothes liberating.
She said: "My mother and father never gave a big deal about nudity in our house.
"I often walk around naked or just wearing panties."
The 'Almost Famous' star - who has a four-year-old son Ryder with her rocker ex-husband Chris Robinson - also insists she has no qualms about stripping on screen.
She added to Fabric magazine: "Actors are all supposed to be emotionally naked anyway."
Kate is not the only star to enjoy baring all when at home.