Viral Coefficient (K-Factor) Calculator

Calculate the viral K-factor for your product or campaign. Determine if your growth is truly viral (K > 1).

Users at Start

Invites Per User

Invite Conversion Rate (%)

Viral Cycle Length (days)

Measurement Period (days)

Tab to move between fields

K-Factor

0.5

Is Viral? (1=Yes)

Users After Period1,938

Growth Multiplier1.94x

Viral Cycles4

How to Use This Calculator

Enter the number of existing users or viewers.
Input the average number of new people each user refers or shares content with.
Set the conversion rate of referred users who become active followers or customers.
Review the Viral Coefficient (K-factor) - values above 1.0 indicate viral growth.
Use the Projected Users at 30 Days output to forecast exponential reach.

Ad Placeholder

Related Calculators

Project social media follower growth over 3, 6, and 12 months based on current growth rate and content frequency.

Estimate your total addressable audience, reachable community, engaged users, and core advocates on social media.

Analyze TikTok video performance with engagement rate, completion rate, viral score, and follower gain estimates.

Ad Placeholder