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Webinar Funnel Calculator

Registrations, show rate, and sales from top-of-funnel traffic.

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Rex says

Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.

Try a scenario

Click to load — tweak from there.

Inputs

Result

Webinar revenue

$70,348

Registrations

3,360

Live attendees

1,176

Sales

71

ROAS

11.72

Cost per registration

$1.79

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How to use this

  1. 1Enter traffic to registration page.
  2. 2Enter registration rate (%).
  3. 3Enter show-up rate (%).
  4. 4Enter offer conversion rate (%).
  5. 5Enter offer price ($).
  6. 6Enter ad spend ($).
  7. 7Read your webinar revenue on the right — it updates as you type.
  8. 8Hit Share to keep the scenario or send it to someone.

About this calculator

Webinar math is brutally simple and almost never modelled: traffic, opt-in, show rate, pitch conversion. Fix the show rate before you spend more on traffic.

FormulaSales = Traffic × opt-in × show rate × close rate.

Worked example

Using the values the calculator loads with:

Inputs

  • Traffic to registration page: 12000
  • Registration rate: 28 %
  • Show-up rate: 35 %
  • Offer conversion rate: 6 %
  • Offer price: 997 $
  • Ad spend: 6000 $

Results

  • Webinar revenue: $70,348.32
  • Registrations: 3,360
  • Live attendees: 1,176
  • Sales: 70.56
  • ROAS: 11.72
  • Cost per registration: $1.79

What each field means

Inputs

Traffic to registration page
The traffic to registration page used in the calculation. Starts at 12000 so you have a working example on load.
Registration rate (%)
The registration rate used in the calculation, measured in %. Starts at 28 % so you have a working example on load. Accepted range: 0–100 %.
Show-up rate (%)
The show-up rate used in the calculation, measured in %. Starts at 35 % so you have a working example on load. Accepted range: 0–100 %.
Offer conversion rate (%)
The offer conversion rate used in the calculation, measured in %. Starts at 6 % so you have a working example on load. Accepted range: 0–100 %.
Offer price ($)
The offer price used in the calculation, measured in $. Starts at 997 $ so you have a working example on load.
Ad spend ($)
The ad spend used in the calculation, measured in $. Starts at 6000 $ so you have a working example on load.

Results

Webinar revenue
Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Registrations
Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Live attendees
Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Sales
Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
ROAS
Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
Cost per registration
Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.

FAQ

How does the webinar funnel calculator work?

Webinar math is brutally simple and almost never modelled: traffic, opt-in, show rate, pitch conversion. Fix the show rate before you spend more on traffic. The underlying maths is: Sales = Traffic × opt-in × show rate × close rate.

What do I need to enter?

6 values: traffic to registration page, registration rate, show-up rate, offer conversion rate, offer price, and ad spend. Each field starts with a sensible default, so you can change one number at a time and watch the result move.

What does the webinar revenue result mean?

It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.

Is this calculator free, and do I need an account?

Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.

How accurate is the result?

It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary.

Who is this tool for?

It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app.

Accuracy and limitations

  • Estimates assume standard, average conditions — local rules, pricing, and materials vary.
  • Results are rounded for readability; add a buffer before ordering, booking, or committing.
  • Double-check anything with a real cost attached against a local quote.

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Cite this calculator

Writing about this topic? Grab a citation — every link helps keep these tools free.

APA
RevenueLab. (2026). Webinar Funnel Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/webinar-funnel
HTML
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/webinar-funnel" target="_blank" rel="noopener">Webinar Funnel Calculator — RevenueLab</a> (2026).</p>
Markdown
Source: [Webinar Funnel Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/webinar-funnel) (2026).
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