Threads vs Instagram: Which Platform Delivers More Reach Per Hour? (Real Data Analysis)

For the last year we have been quietly logging what happens when 162,000 posts go out the door. Across Threads, Instagram, and YouTube, our customers have collectively published over half a billion impressions worth of content through Mirra. The number that surprised us most wasn't the totals. It was the gap between what a typical Threads post does in five minutes and what a typical Instagram post does in two hours.

The cleanest way to put it: on a per-hour basis, Threads is delivering roughly 8 to 10 times more reach than Instagram for the same effort. That's not a thesis we expected to publish. It's what the data kept telling us no matter which way we sliced it.

Key takeaways

• Across 162,000+ posts in our dataset, Threads' median post reaches 542 people; Instagram's median reaches 322.
• The 25th-percentile Threads post still reaches 172 people; the 25th-percentile Instagram post reaches 39 — about 4x lower floor.
• A Threads post takes 3-10 minutes to make. An Instagram post takes 30 minutes to 2 hours.
• For solo operators with no design or video team, Threads is the obvious place to start. Instagram earns its keep when you're optimizing for purchase intent, not raw reach.

The trap of averages

If you only look at means, Instagram looks dominant: 9,193 average views per post versus 3,552 for Threads. But the mean is doing the lying. Instagram's distribution has a long viral tail — a few posts in the millions drag the average up while most posts sit far below it. The median is what most accounts actually live with, and there Threads beats Instagram 542 to 322.

The 25th percentile makes the gap sharper. A Threads post that "underperforms" in our dataset still finds 172 people. The same percentile on Instagram lands at 39. That's the difference between a slow day and a post no one saw.

Why the time math doesn't favor Instagram

Reach per post is half the question. The other half is what it cost to make that post. A Threads post is text. You write it, you ship it. An Instagram carousel needs a layout system, a font choice, ten slides of copy, and a hook image. A Reel needs a script, a take, an edit, captions, music. The friction is structural, not lazy.

That friction shows up in our user data: the average Mirra account publishes 154 posts to Threads and 72 to Instagram. People aren't choosing to neglect Instagram. The format is just heavier.

If you do the rough multiplication — six to ten Threads posts per hour at 542 median reach versus one or two Instagram posts per hour at 322 median reach — you land somewhere between 3,200 and 5,400 reach per Threads hour and 320 to 640 reach per Instagram hour. Whichever end of the range you take, the ratio sits at about 8-10x.

Engagement, not just reach

Reach without engagement is a vanity metric. Here Threads pulls further ahead. Buffer's analysis of 10.2 million posts put Threads' median engagement rate at 6.25%, ahead of X at 3.6%. Socialinsider's 2025 Instagram benchmarks have Instagram's overall engagement rate sitting at 0.48%, with carousels still the leading format at 0.55%.

The order-of-magnitude gap is real. It's also a reason to be careful. High Threads engagement on a 500-view post is still a 500-view post. Instagram's smaller engagement rate on a viral Reel can move a meaningful number of people into your store.

When Instagram earns its hours back

None of this is an argument to abandon Instagram. It's an argument to be honest about why you're there. Instagram still wins on three fronts that matter: visual brand-building in categories where the photo is the product, mature ad infrastructure with precise targeting, and a viral ceiling that genuinely goes higher than Threads' does.

If you're selling something visual — food, beauty, travel, physical goods — the cost of a good Instagram presence pays for itself in a way Threads can't replicate yet. If you're selling SaaS, services, or anything where the buying decision happens in text, the math gets harder to defend.

What we'd actually do

If you're solo and starting from zero, go all-in on Threads for a quarter. Two to three posts a day is sustainable on text alone. Build the writing muscle, find what your audience leans into, then layer Instagram once you have signal.

If you're a small team with some design capacity, our rough rule has been 70% Threads, 30% Instagram. Use Threads to test ideas — what gets saved, what gets replied to — then turn the winners into carousels and Reels. You stop guessing what to design.

If you have a full content team, run them in parallel but stop cross-posting identical content. Each platform has a different reading posture, and posts written for one usually feel slightly off on the other. We built Mirra partly to make that translation step less painful — one idea, two outputs that each feel native — but the principle holds whether you use a tool or not.

Frequently asked questions

Can a Threads account with zero followers still get reach?

Yes. Threads ranks heavily on interest signals rather than follower graph alone. Even bottom-quartile posts in our dataset still land 172 views. It's not a guarantee of growth, but the floor is real.

Should I cross-post the same content to both?

We'd avoid copy-paste. Threads readers expect a certain rhythm — short, conversational, often a single idea per post. Instagram captions can carry more weight. Use Threads to find what people care about, then re-shape it for the slower, more visual surface.

Is Reels or carousels the better Instagram bet?

Reels reach more new people; carousels drive deeper engagement with people who already know you. If you're building an audience, lead with Reels. If you're nurturing one, carousels do more work per post.

What time period does the Mirra data cover?

January 2025 through February 2026. Threads accounts have been publishing through Mirra longer; Instagram integration shipped in December 2025, so its window is shorter. As more Instagram data lands, the numbers may shift slightly.

Mirra is a social marketing tool for solo SaaS builders and small teams. Carousels, card news, and scheduled publishing in one place. Try Mirra →