You'll get different answers, depending on the respondents' perspectives.
Human binocular vision encompasses about 140 degrees; on your Kx, that would be around 6mm (SIX!). Yup, a rather wide angle of view (AOV). In some formats, 'normal' focal length for 'normal' AOV is calculated as the diagonal of the film/sensor frame; on your Kx, that's 30mm for about 50 degrees. Some consider that a "wide normal" and would insist on 35mm for about 45 degrees. If your attention is focused on something, you might ignore peripheral subjects and have an AOV of about 30 degrees; on your Kx, that's a 55mm lens. And if you have "tunnel vision", you'd be comfortable with a 85mm lens for an AOV around 20 degrees.
But human visual perception isn't like a camera's. Your internal image-processing system is both telephoto and ultra-wide-angle, with infinite depth of field (DOF). That's why snapshots of scenery are often disappointing; the camera reports on what it sees, not the composite image your brain has synthesized. Which just means that any photo that doesn't seem too distorted, will seem 'normal'.
Hope this helps.