How Old Is Elon Musk's Son

We’ve all been there. You’re at a family barbecue, burger in hand, when your cousin—the one who always has a hot take—drops a question that stops the party cold. “So,” they say, squinting at their phone, “how old is Elon Musk’s son, anyway?”

And suddenly, you’re not just grilling. You’re doing the mental math of your own life. You’re thinking about your own kids, your own age, and that one time you tried to install a ceiling fan and nearly rewired your entire existence. The question feels simple, but the answer… well, it’s a bit like trying to catch a greased pig at a county fair.

Let’s be real: Elon Musk isn’t just a billionaire; he’s a human plot twist. Talking about his family is like trying to read a book where the chapters are out of order, and some are written in disappearing ink. So, let’s take a breath and unpack this with the casual grace of someone explaining why their car is making a weird noise.

The Name That Broke the Internet (and Autocorrect)

First, you have to understand the naming situation. Elon’s son with Grimes, born in May 2020, has a name that looks like a Wi-Fi password. It’s X Æ A-12, which in California is apparently a valid birth certificate entry, but in my town would get you a side-eye from the DMV.

They later tweaked it to X Æ A-Xii to comply with “numerals” rules, which feels like changing your fantasy football team name because the league commissioner is a stickler. So, how old is this little legend? As of 2025, he’s five years old. Yeah, five. He’s old enough to ride a tiny bike, but young enough that a cardboard box is still the best toy in the house.

And that’s where the everyday connection kicks in. You don’t need a rocket to relate to a five-year-old. You just need to have survived a tantrum in the cereal aisle.

The “Bye Bye” Fake-Out

Here’s the thing about kids that age—they’re little terrorists with sticky hands. You think you’ve got a routine down, and then they decide that wearing socks is a form of oppression. I once saw a toddler negotiate for a single Goldfish cracker for ten minutes, and I swear he had better negotiation skills than most corporate lawyers.

So, X is probably doing the same things your kids do. He’s probably asking “why” until you want to scream, and then he’s quietly reprogramming the smart TV to only play underwater mammal documentaries. Five years old is that beautiful, chaotic sweet spot where they can spell their name but also try to eat play-doh.

Wait, There Are More Siblings?

Now, here’s where the age math gets really fun. Elon has a lot of kids. It’s like he’s collecting them the way some people collect vintage board games, but with fewer pieces missing. He’s got twins, triplets, and another little one with Grimes named Techno Mechanicus (yes, really).

Elon Musk gave him and two-year-old son X AE A-XII…

So, when you ask “how old is his son,” you’ve accidentally opened a spreadsheet. There’s Xavier (now Vivian, who legally changed her name), Griffin, Saxon, Damian, Kai, and the twins from 2021. But for the casual observer, the one that matters—the one that’s burned into our collective memory—is wee X. He’s the one who’s been in photos on a giant rocket part, looking like he’s just happy to be there, which is exactly how I feel at a buffet.

Honestly, figuring out his age is like trying to remember how old you were when you finally understood compound interest. It takes a second, and you feel a bit silly when you get there.

The Real Punchline

Here’s the secret that makes this all relatable: the age doesn’t actually matter. Whether he’s five or fifteen, the core truth remains. We’re all just out here trying to figure out our own kids, our own messy lives, and why we put the milk in the pantry again.

Elon’s kid is not sitting in a regular classroom, probably. He’s probably learning rocket science from a hologram while eating a vegan gummy bear. But at heart, he’s still a five-year-old who probably likes dinosaurs and chaos, just like every other kid on the block.

So next time someone asks you that question at a party, don’t sweat it. Just smile, take a sip of your lukewarm soda, and say, “Oh, he’s the same age as the feeling you get when you forget your anniversary. It’s fine. It's just complicated.” Because it is. And that’s exactly what makes it so perfectly, weirdly human.

Now, if you’ll excuse me, I have to go find out why my own five-year-old is wearing a colander on his head. The apple doesn’t fall far from the tree, I guess.