What is the difference between reach and impressions?
Reach is the number of unique accounts that saw your content; impressions is the total number of times it was displayed (one person can create multiple impressions). Reach measures audience size; impressions measure exposure frequency.
These two get confused constantly, but they answer different questions.
# Reach = how many people
Reach is the count of unique accounts that saw your post at least once. It answers: how big was my audience for this post?
# Impressions = how many views
Impressions is the total number of times your post was shown, including repeat views by the same person. It answers: how much total exposure did this get?
# A quick example
If 1,000 unique people saw your Reel, and on average each saw it 1.5 times, you'd have:
- Reach: 1,000
- Impressions: 1,500
# Which to optimize
- For growth, watch reach (especially reach from non-followers).
- A high impressions-to-reach ratio means people re-watched — a strong quality signal, common on good Reels.
- Calculate engagement rate against reach for the most honest number.
FAQ
Can impressions be higher than reach?
Yes, almost always — one person can view a post multiple times, and each view is an impression while they count once toward reach.
Which is more important, reach or impressions?
For audience growth, reach (unique people, especially non-followers). Impressions matter for measuring repeat exposure and re-watch quality.