It feels like they've been on our screens forever. Seriously, I remember watching the first season of Keeping Up in a completely different era of the internet, and yet, here we are in 2026, and the family is still the focal point of the pop culture universe. But because they’ve been famous since some of us were in elementary school, our internal clocks for them are totally fried. You see Kim on a red carpet looking exactly like she did five years ago, and you start to wonder if time even exists in Calabasas.
So, how old are the Kardashians exactly?
Getting the numbers right is actually a bit of a trip. We’ve watched these women (and Rob!) grow up, get married, have roughly a dozen children between them, and build billion-dollar empires. If you feel like they should be older—or somehow younger—than they actually are, you aren’t alone. The math gets fuzzy when you're looking at a family tree that feels like it has 400 branches.
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The OG Trio: Kourtney, Kim, and Khloe
Let’s start with the sisters who started it all. People often forget that there is actually a pretty decent age gap between the oldest and the youngest of the original three.
Kourtney Kardashian is the oldest, and honestly, she’s the one who seems to care the least about the "fountain of youth" pressure, even though she looks incredible. Born on April 18, 1979, Kourtney is 46 years old. It’s kind of wild to think she’s approaching 50 while raising a toddler, Rocky, who she had with Travis Barker just a few years back. She’s really leaned into that "Lemme" wellness lifestyle, and clearly, whatever she’s doing is working.
Then there’s Kim Kardashian. She’s the middle child who somehow has "main character" energy 24/7. Kim was born October 21, 1980, making her 45 years old. She’s basically the blueprint for the modern influencer, and at 45, she’s arguably more powerful now than she was in her 20s. She’s running SKIMS, studying law, and raising four kids who are already becoming mini-celebrities themselves.
Khloe Kardashian rounds out the sisters. She was born June 27, 1984, so she’s currently 41 years old. Khloe has probably had the most public "transformation" over the years, and she’s spoken pretty candidly about the pressure of being compared to her sisters. At 41, she’s fully in her "Good American" era and seems most focused on being a mom to True and Tatum.
Don't Forget Rob
The only brother, Rob Kardashian, stays out of the spotlight these days, which honestly, good for him. He was born March 17, 1987. That puts him at 38 years old. While we don't see him on the Hulu show nearly as much as we used to on E!, he’s still very much a part of the family ecosystem, mostly focusing on his daughter, Dream.
The Jenner Sisters: A Different Generation
This is where the timeline usually trips people up. Because Kendall and Kylie have been famous since they were literal children, we sometimes forget they are significantly younger than their half-siblings.
Kendall Jenner is 30 years old. She was born November 3, 1995. It’s a bit of a milestone year for her. She’s always been the one who moved a little differently—high fashion runways, 818 Tequila, and a bit more privacy regarding her dating life. Even at 30, she’s still one of the most in-demand models in the world.
And the "baby" of the family? Kylie Jenner.
Kylie was born August 10, 1997, which makes her 28 years old.
Basically, she has lived an entire lifetime before 30.
Think about it.
She became a mother at 20.
She built a makeup empire.
She’s a billionaire (or close enough that the distinction doesn't really matter to us mere mortals).
At 28, she’s already a veteran of the industry.
The Momager Who Doesn't Age
We have to talk about Kris Jenner. Without her, there is no "Kardashian" brand.
Kris was born November 5, 1955, which makes her 70 years old.
Seventy.
Let that sink in for a second.
Most people are looking at retirement at 70, but Kris is still out here negotiating nine-figure deals and managing the most famous family on the planet. She has more energy than most people in their 30s.
Why the Ages Actually Matter for the Brand
You might think, "Who cares how old they are?" But in the world of celebrity marketing, age is everything. The Kardashians have managed to do something almost impossible: they’ve remained relevant across three different decade-based demographics.
- Gen X and Boomers relate to Kris and the "momager" hustle.
- Millennials grew up with Kourtney, Kim, and Khloe.
- Gen Z looks to Kendall and Kylie for style and business cues.
By having a family that spans from age 28 to 70, they’ve effectively cornered the market. They aren't just one "thing." They are a multi-generational lifestyle brand. When Kim launches an anti-aging skin line, people listen because they’ve seen her skin for twenty years. When Kylie drops a new lip kit, a new generation of 19-year-olds buys in.
Common Misconceptions About Their Ages
One thing people get wrong constantly is the order. People often think Kim is the oldest because she’s the most famous. Nope. Kourtney has two years on her.
Another big one? People think Kendall and Kylie are closer in age to the other girls. There is a 16-year gap between Kourtney and Kendall. That’s a massive difference. When Kourtney was graduating high school and starting her adult life, Kendall was literally a newborn. It explains why the dynamic between the "older" girls and the "younger" girls has always felt a little bit like two different worlds.
The New Generation: The Grandkids
While the sisters are the stars, the "next-gen" is already catching up.
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- Mason Disick (Kourtney's oldest) is already 16.
- North West (Kim's oldest) is 12.
- Stormi Webster (Kylie's oldest) is 7.
The fact that Mason is a teenager heading toward adulthood makes the rest of us feel ancient. It also means the Kardashian "clock" isn't going to stop anytime soon. We’re basically watching the prequel to the next 20 years of reality TV.
Keeping Track of the Timeline
If you're trying to remember who is what age for a trivia night or just to satisfy your own curiosity, just remember the 80s/90s split.
The "Kardashians" (Kourtney, Kim, Khloe, Rob) were all born between 1979 and 1987.
The "Jenners" (Kendall, Kylie) were born in 1995 and 1997.
Kris is the 1955 anchor.
It’s a wide spread. Honestly, the most impressive part isn't the numbers themselves, but how they’ve managed to stay at the center of the conversation for this long. Most "it girls" have a shelf life of about five years. These women are entering their third decade of dominance.
If you want to stay updated on the ever-evolving Kardashian-Jenner world, the best move is to watch their lifecycle transitions. Pay attention to how they pivot their brands as they enter new age brackets—like Kim’s move into "serious" law and Kourtney’s shift into the "clean living" mom space. Their business moves almost always mirror their biological milestones.
Actionable Insight:
The next time you're scrolling through social media and see a Kardashian post, don't just look at the product. Look at the demographic they are targeting. You'll notice that as Kim and Kourtney have entered their mid-40s, their marketing has shifted toward "longevity" and "legacy," while Kylie at 28 is still hitting the "trend-setter" and "glamour" notes. Understanding their ages is the secret key to understanding their business strategy.