Here's the thing about the Kardashians — they always know how to transform their looks. Whether it's with wigs, makeup, waist-trainers, or even alleged plastic surgery, they can look completely different one day to the next. So when it comes to even their most basic stats — like their heights — it can be pretty confusing.

Sure, we know on some level that we can just look up exactly how tall each sister is. But when Kylie Jenner can throw on heels and look just as tall as Kendall, it's not easy to remember they actually have a four inch height difference — and that that's actually a pretty big difference when you see it side by side.

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It doesn't help that the Kardashian-Jenners are practically always in heels. Seriously, we sorted through several thousand pictures of Kim Kardashian. Do you know how many of them she was wearing flats or sneakers in? Less than ten. And in all of them, she was leaning forward and ducking away from the paparazzi. Even when she wasn't getting a five inch boost, we couldn't get a good idea of her height.

So we decided to sit down and really figure out how each Kardashian-Jenner measures up.

how tall are the kardashians?

And then, while we were doing that, we got really into this visualization. And, since no one is on the same level as the Kardashian-Jenners, we knew we could really only measure them in each other.

How tall is Kourtney Kardashian?

how tall is kourtney kardashian?

Kourtney Kardashian's the oldest of the pack, but also the shortest. So how tall is she exactly? Oh, about 0.9 Kylies. (Which, for the record, is also 0.85 Khloés.) To make 10 full Kourtneys, you'd only need 9 Kylies. In other words, girl is a shorty — 5'0" flat.

How tall is Kim Kardashian?

how tall is kim kardashian?

Kim's a little taller, but not by much. She's really only 1.05 Kourtneys — although you can still see the difference pretty easily. Kim is also about 0.9 Khloés. So really still on the shorter side at 5'3".

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How tall is Khloé Kardashian?

how tall is khloé kardashian?

Khloé Kardashian and Kendall are the tallest of the group — and just about the same height, give or take a couple centimeters. At 5'10", Khloé is about 1.17 Kourtneys. To make 50 Khloés, you'd need about 53 Kourtneys. That's a lot of Kourtneys.

How tall is Kendall Jenner?

how tall is kendall jenner?

As for Kendall, she's 1.06 Kylies — and you'd need about 117 Kourtneys to make 100 Kendalls, which is a pretty huge difference. At 5'10", she's the same height as big sis Koko.

How tall is Kylie Jenner?

how tall is kylie jenner?

Kylie's actually the average one in the group at 5'6" — although, LBR, none of the Kardashians are actually average in any way. But when it comes to measuring up, she's 1.1 Kourtneys, 1.05 Kims, and 0.94 Khloés.

Now that you know their measurements, you can measure other stuff in Kardashians, too.

Like the Eiffel Tower, which, for the record is about 196.8 Kourtneys.