How to Pick Your Instagram Hashtags

Picking the right hashtags is one of the simpler ways to help new people find your Instagram, as long as you treat them as a label rather than a lottery ticket. Used well, a small set of relevant tags tells Instagram exactly who a post is for and puts it in front of people already interested in that topic.

So what actually makes a good hashtag, and how many should you use? Let’s start with the bit most guides get wrong.

What is a hashtag, and how many should you use?

A hashtag is a string of letters, numbers, or emojis after the # symbol that categorises your content and makes it searchable. Tap one and you see every public post using it.

Here is the update most posts have not caught up with: more is not better. You can technically add up to 30 (and up to 10 on a Story), but Instagram now recommends a handful of genuinely relevant tags, around three to five, rather than a wall of them. Treat hashtags as a way of telling Instagram what a post is about and who should see it, not as a growth hack that multiplies your reach. It is far easier to choose well once you have defined your Instagram niche, so start there.

The real skill, then, is choosing a few good ones. The easiest way to judge a hashtag is by how many posts already use it. Here are the rough size bands and when each earns its place.

Micro hashtags

These have under 100,000 posts. It is easy to land in the top posts for them, but the overall reach is small.

Use a few to get very targeted eyes on a post. They work especially well for location-specific or tightly niche accounts, where being seen by the right hundred people beats being lost among the wrong million.

Small hashtags

Small hashtags sit under 300,000 posts. They are great for niche but active communities: enough people searching to be worth it, not so much competition that you disappear.

If your posts are not getting much engagement yet, lean on this band the most. Check whether you are reaching the top posts for them, and once you are, start mixing in a few medium tags.

Medium hashtags

These run from 300,000 to about 1M posts. Not too small, not too big, so they are often the sweet spot. A couple of well-matched medium tags per post is plenty, and relevance always beats volume.

Large hashtags

Large hashtags have 1M to 10M posts. They are trendy and popular, but your odds of being seen drop sharply, and a fair share of the likes they attract come from bots rather than real, interested people.

Huge hashtags

These giants have over 10M posts. Everyone uses them, constantly, so the competition is brutal and your post gets lost in seconds. The audience is far less targeted too. Skip them, or use one at most.

The takeaway: a short, relevant mix beats a copy-pasted block of 30 every time. Pick a few tags from the smaller bands, keep them specific to the post, and pair them with content built for more reach and a friendlier algorithm. If you shoot one particular subject, it is worth saving a set you can reuse, the way photographers lean on their go-to photography hashtags.