Webinar Attendance Calculator
Registrations needed for a target audience.
Enter your values
Enter the target live attendees you are working with.
Enter the show-up rate in %.
Enter the attendee to lead in %.
Enter the value per lead in $.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Registrations needed
- 395
- Qualified leads
- 33
- Pipeline value
- $5,940.00
- No-shows expected
- 245
Quick answer
Only a third to a half of webinar registrants typically attend live.
Registrations = target attendees ÷ show-up rate
At a glance
| What it does | Registrations needed for a target audience. |
|---|---|
| Category | Business |
| Inputs needed | Target live attendees, Show-up rate, Attendee to lead, Value per lead |
| Main output | Registrations needed |
| Formula | Registrations = target attendees ÷ show-up rate |
| Cost | Free — no sign-up, no download |
How to use the Webinar Attendance Calculator
- 1Set your target live attendance.
- 2Enter your historical show-up rate.
- 3Add lead conversion and value.
Inputs explained
- Target live attendees
- Enter the target live attendees you are working with.
- Show-up rate(%)
- Enter the show-up rate in %.
- Attendee to lead(%)
- Enter the attendee to lead in %.
- Value per lead($)
- Enter the value per lead in $.
Worked example
Using the values the calculator loads with:
Inputs
- Target live attendees150
- Show-up rate38 %
- Attendee to lead22 %
- Value per lead180 $
Results
- Registrations needed395
- Qualified leads33
- Pipeline value$5,940.00
- No-shows expected245
Frequently asked questions
How do I raise show-up rate?
Reminder emails at 24 hours and 15 minutes lift attendance most.
Do replays count?
Track them separately — replay viewers convert differently.
What do I need to enter into the Webinar Attendance Calculator?
Just 4 values: target live attendees, show-up rate, attendee to lead, value per lead. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Webinar Attendance Calculator work out the answer?
Only a third to a half of webinar registrants typically attend live. It applies the formula Registrations = target attendees ÷ show-up rate and shows the working so you can check each step by hand.
Is the Webinar Attendance Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.