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Reach & Frequency Calculator
As impressions grow, each additional impression is more likely to reach someone already exposed. This model approximates that curve.
Frequency = Impressions ÷ Reach · Reach ≈ Audience × (1 − e^(−Impressions/Audience))
How the Reach & Frequency Calculator works
Free reach and frequency calculator: estimate reach and average frequency from impressions and audience size with a diminishing-returns model.
You enter
- › Audience size
- › Impressions
You get
- › Estimated reach
- › Reach %
- › Average frequency
Worked example (default values): Audience size 1,000,000 · Impressions 2,500,000 → Estimated reach 917,915 · Reach % 91.79% · Average frequency 2.7236.
Tips
- › A simplified model — platforms use their own reach estimation.
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