Kim Kardashian "cannot believe" she knew her late father for the same number of years as he's been gone.

The 44-year-old businesswoman took to social media to pay tribute to her dad, Robert Kardashian - who died aged 59 on September 30, 2003, just two months being diagnosed with esophageal cancer - 22 years to the day since his passing.

She wrote on her Instagram Stories: "Thank you for always protecting the family from heaven.

"Can't believe I was 22 years old when you passed away and it's been 22 years today since you went to heaven.

"I've known you just as long as you've been gone.

"I hope you're so proud of all of us. We love you dad and miss you soooooooooo much (sic)"

Kim's sister Kourtney Kardashian, 46, also paid tribute to her father.

She re-shared a post from her Instagram, and she added the new caption: "My dad [heart emoji]"

The pair's younger sibling Khloe Kardashian, 41, remembered their dad by re-sharing a Reel on her Instagram Story.

The caption read: "I will forever hold space for you. Happy birthday daddy [white heart emoji] I love you.

"Thank you for everything [white heart emoji] Every memory. Every lesson. Every laugh. Every ounce of love. Thank you!"

Earlier this year, Khloe told how she felt "incredibly angry" after the death of her father, and she hated being forced to talk about her loss on camera.

During an episode of her podcast Khloe in Wonderland with grief expert David Kessler, she explained: "For about three years, I was incredibly angry.

"I was filming my show, 'Keeping Up with the Kardashians', and in season one, I remember one of my producers was making me do an interview about my dad 'cause I wouldn't talk about my dad.

"At that time, if I spoke about him, I would just break down.

"It was as if a house got lifted off of me after that conversation. was kicking and screaming while doing it, but as soon as I had that conversation, that was the last time that I cried when talking about my dad, in a bad way ...

"I let go of all of this guilt and anger. Now I can talk about my dad with smiles and happiness and admiration and understanding."