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Social Media Analytics·4 min read·Updated 25 April 2026·✓ Reviewed Apr 2026Recently UpdatedWhat changed? →

Reach vs Impressions: What's the Difference and Which to Track

Understand the difference between reach and impressions, and how to use each metric correctly to evaluate social media performance.

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Reach vs impressions defined#

Reach: the number of unique accounts that saw your content. Each person is counted once, regardless of how many times they saw it.

Impressions: the total number of times your content was displayed — one person can generate multiple impressions by seeing the same post multiple times.

Example: if 1,000 people each saw your post twice, reach = 1,000 and impressions = 2,000.

In AskBiz, both metrics appear in Social → Overview and on individual post detail pages.

When to use reach#

Use reach to answer:

  • How many unique people did we reach this week?
  • Are we growing our audience exposure month-over-month?
  • What percentage of our followers see our posts?

Follower reach rate = Post reach ÷ Followers × 100

On Instagram, organic reach rate typically runs 5–15% of followers per post. On Facebook it can be as low as 2–5% due to algorithmic throttling of organic content. TikTok is unique — non-followers can see your content, so reach can exceed follower count.

When to use impressions#

Use impressions to answer:

  • How many total times was our content displayed?
  • How much frequency are our ads getting? (For paid social)
  • Are people seeing our content multiple times?

For paid social campaigns, impressions are the primary volume metric. CPM (cost per 1,000 impressions) is calculated using impressions, not reach:

CPM = Ad spend ÷ (Impressions ÷ 1,000)

A high impressions-to-reach ratio (frequency > 3) in paid campaigns can signal ad fatigue — the same people are seeing your ad too many times. Time to refresh creative.

Organic vs paid reach#

AskBiz separates organic and paid reach for posts that were both posted organically and boosted with paid spend:

  • Organic reach: people who saw your post without paid promotion (from followers' feeds, hashtags, explore page, shares)
  • Paid reach: people who saw it because of a paid boost

For brand-building, organic reach is more valuable — it reflects genuine content resonance. Paid reach is volume you're buying. Go to Social → Posts → [Post] → Reach Breakdown to see the split.

Tracking reach growth over time#

The most meaningful reach metric is monthly unique reach — the number of unique accounts reached across all posts in a month.

Month-over-month growth in monthly reach indicates your content is gaining distribution. In AskBiz, view this in Social → Overview → Monthly Reach Trend.

Benchmark: growing total monthly reach by 5–10% per month is strong organic growth. Faster growth usually requires paid amplification or viral content moments.

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