> **For coding agents and LLMs:** This is one Social Fetch marketing page (markdown export). For API orientation start with [`/llms.txt`](https://www.socialfetch.dev/llms.txt); for auth and crawl rules use [`/agents.txt`](https://www.socialfetch.dev/agents.txt); for every operation use [`/llms-endpoints.txt`](https://www.socialfetch.dev/llms-endpoints.txt).

## This page

- **On-site (HTML):** <https://www.socialfetch.dev/data/best-hashtags-for-instagram-reels>
- **Markdown (.mdx) URL:** <https://www.socialfetch.dev/data/best-hashtags-for-instagram-reels.mdx>

---

# What are the best hashtags for Instagram Reels?

Sample trending Reels via GET /v2/instagram/reels/trending; rank hashtags by share of the pull. Dated snapshot. TikTok tags (#fyp) in captions reflect cross-post habit, not an Instagram feature.

Data as of 2026-07-21. Sample: 32. 32 trending Reels across 4 fresh batches. Plays from reel metrics when present, else the media playCount. Live refresh via GET /v2/instagram/reels/trending.

## Key numbers

- **Reels sampled:** 32 (4 batches)
- **Unique hashtags:** 28
- **Top tag share:** 13% (#worldcup2026)
- **Batches:** 4

## Top hashtags in this sample

| Rank | Hashtag | Share | Reels | Plays (sample) |
| --- | --- | --- | --- | --- |
| 1 | #worldcup2026 | 13% | 4 | 19.3M |
| 2 | #worldcup | 9% | 3 | 24.2M |
| 3 | #spain | 9% | 3 | 26.5M |
| 4 | #fifaworldcup | 9% | 3 | 16.9M |
| 5 | #argentina | 9% | 3 | 27.1M |
| 6 | #soccer | 9% | 3 | 33.8M |
| 7 | #worldcupfinal | 9% | 3 | 33.8M |
| 8 | #fifa | 6% | 2 | 11.3M |

Share is relative to this snapshot only. Broad discovery tags like #reels dominate most pulls. TikTok-only tags (#fyp) are filtered from the foundation table.

## Methodology

Pull several fresh batches from trending Reels. Collect hashtags from each reel caption. Rank by how often each tag appears in the sample. Sum play counts per tag from reel metrics when present; otherwise resolve each reel via GET /v2/instagram/media/{media} (playCount).

- Sample: Four trending batches in one refresh when the live key works. Foundation table filters TikTok-only discovery tags (#fyp, #foryou) so ranks stay Instagram-facing. Hashtags with fewer than two appearances are dropped from the top table.
- Refresh: Live recompute on snapshot refresh when SOCIALFETCH_API_KEY is valid (target: weekly). A refresh that returns zero Reels fails instead of writing empty rows.
- Formula: Share % = reels with hashtag ÷ reels in sample × 100. Plays = sum of play counts on matching reels (trending metrics.plays, else posts metrics.playCount).
- Endpoint: `GET /v2/instagram/reels/trending`, primary sample source (multiple fresh batches)
- Endpoint: `GET /v2/instagram/media/{media}`, play-count fill-in when trending metrics.plays is null
- Endpoint: `GET /v2/instagram/hashtags/{hashtag}/media`, optional follow-up to inspect a single tag's recent posts

## Trending Reels

```bash
curl -sS \
  -H "x-api-key: $SOCIALFETCH_API_KEY" \
  "https://api.socialfetch.dev/v2/instagram/reels/trending"
```

## FAQ

### Are these the best hashtags to use on every Reel?

No. Broad discovery tags dominate trending samples. Niche tags that match your content still matter more for topic relevance. Use this table as a dated signal of what is circulating in trending pulls, then check a specific tag with GET /v2/instagram/hashtags/{hashtag}/media.

### Why does #reels show up so often?

Creators attach Reels and discovery tags on many uploads. Our rank counts presence in the sample, so high-frequency tags rise to the top even when they add little topical signal.

### Why might #fyp appear on an Instagram list?

Many creators cross-post from TikTok and keep the same caption tags. Our foundation table filters #fyp / #foryou so this page does not read like a TikTok chart. A live refresh may still surface them if they are common in captions — that reflects habit, not an Instagram For You product.

### How often is this updated?

Snapshots refresh on a regular cadence (target weekly) when a valid API key is available. The page shows the as-of date from the last successful compute. We do not re-hit trending on every page view.

### Can I reproduce this with the API?

Yes. Call GET /v2/instagram/reels/trending a few times for fresh batches, aggregate hashtags from captions, and rank. The curl block on this page is the starting request.

## Related

- [Instagram platform API](https://www.socialfetch.dev/platforms/instagram)
- [Instagram engagement rate tool](https://www.socialfetch.dev/tools/instagram-engagement-rate)
- [Average Instagram engagement rate](https://www.socialfetch.dev/data/average-instagram-engagement-rate)
- [Best hashtags for TikTok](https://www.socialfetch.dev/data/best-hashtags-for-tiktok)
- [Best hashtags for YouTube Shorts](https://www.socialfetch.dev/data/best-hashtags-for-youtube-shorts)