Influencer Marketing Reach Simulator

Campaign Setup

Campaign budget $25,000

Influencers hired 3

Content virality (word-of-mouth) 0.30

Simulation speed 2.0 days/s

Live Results

Total reach

% of market

New engagements/day

Cost per engagement

—

Campaign day

0.0

How it works

Reach grows by the Bass diffusion model, the standard equation marketers use to describe how a new product or campaign spreads through an audience of size M (the market potential):

dN/dt = (p + q · N/M) · (M − N)

N  = people reached & engaged so far
M  = addressable audience (set by budget)
p  = innovation coefficient — direct reach from
     influencer posts/ads (scales with influencers hired)
q  = imitation coefficient — word-of-mouth spread as
     already-reached people share with peers

Budget sets the addressable market M — a bigger budget buys ads/placements in front of a larger pool of potential followers.
Influencers hired raises p, the direct/broadcast term — more creators posting means more people see the campaign without relying on shares.
Content virality raises q, the imitation term — punchier content gets shared, so growth increasingly comes from reached people converting their own followers.
Growth is fastest around the inflection point where N/M ≈ p/(p+q) is exceeded, then decays as the market saturates — the classic S-curve of adoption.

Each glowing node in the 3D sphere is one audience segment; the pink icosahedra are your hired influencers broadcasting outward. Cost per engagement = budget ÷ total reach, the metric a real campaign is optimized against.

Reached & engaged audience Not yet reached Influencer

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