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Also known as: K-factor, viral factor

Viral Coefficient

TechnicalMarketingMetrics

Definition

Viral Coefficient: The viral coefficient (K-factor) measures how many new users each existing user brings in through referrals. A coefficient above 1 means viral growth, where each user generates more than one new user, leading to exponential growth.

Example Usage

β€œWith a viral coefficient of 1.2, our user base doubles organically every few weeks.”

Common Misconceptions

Any sharing is virality. True virality requires K > 1 for sustained growth.
Viral growth is sustainable alone. Viral loops typically decay and need reinforcement.
All products can go viral. Virality depends on inherent product characteristics.

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