It’s no secret that we’re nail fanatics here at Who What Wear HQ. We’re always investigating the trending polish colors, learning how to grow healthier nails, and even identifying the least-cheesy holiday-themed nail designs. Not to mention our obsession with stalking the best celebrity manicurists online.

One area that always trips us up a little bit, though, is nail shape. It doesn’t sound like a confusing topic, but when it comes to selecting the perfect shape to complement any length, there seem to be some questions. So we took to Instagram, the #nailfie mecca, to find out exactly which shapes look best on which lengths. It wasn’t easy, but someone had to do it. As usual, we volunteered as tribute.

Here, we’ve outlined eight of the most popular nail shapes worn by cool girls everywhere and which ones look best according to length. Scroll through to find which one works for you, and don’t forget to screenshot your faves to bring to your next salon visit.

Round nails are a classic style characterized by a soft, rainbow-like curve at the tip.

Squoval nails are exactly what they sound like: a cross between square and oval. You can identify them by the straight top edge coupled with softly curved sides.

Maintain a neat nail shape with this glass file that won’t tear or otherwise damage your tips.

Neem leaf, Anthyllis, and chamomile condition the nails and cuticles, making for stronger nails and soft, healthy surrounding skin.

Similar to round nails, oval nails are softly curved at the tip. Said curve will be a touch more dramatic than a round nail, more closely mimicking the shape of the cuticle.

Square nails are flat on top and straight on the sides with no curve or tapering. 

Mountain peaks are great for creating the look of longer nails without actually requiring tremendous length. They can be characterized by the marked taper culminating in a sharp pinnacle. 

Keep your nails looking fresh and clean with this dual-ended cuticle pusher and nail cleaner.

Whether you’re planning to maintain this length or grow your nails even longer, a nail-strengthening cream like this one is essential for staving off any breaking.

Almond-shaped nails are similar to oval with more tapering at the ends. The result is a long, elegant nail that’s not too sharp.

This elongated square shape takes great lengths to achieve, but the payoff is a long, sophisticated-looking nail that definitely leaves an impression. It narrows slightly toward the top, creating a shape similar to its namesake ballerina slipper.

These fierce, talon-like nails feature an undoubtedly pointed tip atop the long nail shaft. No subtlety here!

While beautiful, long nails can also be a catchall for dirt and bacteria. Keep your claws clean with a brush like this one by Konex.

Nail health starts from within, so these vitamins packed with 5000 micrograms of plant-based biotin are a great addition to any growth and strengthening regimen. As always, talk to your doctor before taking any new supplements. Up next, making this one small change made my nails grow crazy-fast. This post was previously published and has since been updated.