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Creator Economy & Digital ProductsGenerated accuracy model review: 2026-05-06

ConvertKit Subscriber Value Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Subscriber value = ((subscribers * emails per subscriber * open rate * click rate * purchase rate * average order value) - fees - monthly email cost) / subscribers.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Subscribers: 12,000
  • Emails per Subscriber: 4 /mo
  • Open Rate: 42%
  • Click Rate from Opens: 6%
  • Purchase Rate from Clicks: 4%
  • Average Order Value: $79
  • Payment / Platform Fee: 3%
  • Monthly Email Cost: $119

Expected outputs

  • Subscriber Value: $0.30
  • Net Monthly Revenue: $3,588.67
  • Estimated Purchases: 48.38
  • Gross Monthly Revenue: $3,822.34

Known limitations

  • These calculators do not connect to ConvertKit, email service providers, webinar platforms, ad platforms, or payment processors. They do not model deliverability changes, attribution windows, refunds, taxes, list fatigue, customer support load, or cohort-level retention unless you enter those assumptions yourself.

Assumptions

  • Funnel results are estimates based on user-entered assumptions.
  • The calculator uses only the conversion rates, values, costs, and fees you enter.
  • Calculations are deterministic and run locally in your browser without uploading funnel data.
  • Results do not predict deliverability, list quality, refunds, ad approval, platform changes, or future audience behavior.

Unit handling

  • Subscribers accepts numeric values.
  • Emails per Subscriber accepts values in /mo.
  • Open Rate accepts values in %.
  • Click Rate from Opens accepts values in %.
  • Purchase Rate from Clicks accepts values in %.
  • Average Order Value accepts values in $.
  • Payment / Platform Fee accepts values in %.
  • Monthly Email Cost accepts values in $.
  • Subscriber Value is displayed as currency.
  • Net Monthly Revenue is displayed as currency.
  • Gross Monthly Revenue is displayed as currency.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Currency outputs are displayed with standard US dollar formatting.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current convertkit-subscriber-value-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for ConvertKit Subscriber Value Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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