Are webinars worth the cost in B2B marketing?

Webinars can help a B2B buyer understand a complicated problem or see a product at work. They also take time to produce, and a full registration list does not tell you whether that time paid off. To decide whether webinars belong in your marketing plan, compare the job they do with the cost of doing it.

Where a webinar fits in the buying process

A webinar is useful when a buyer needs more explanation than a short page can provide, or when questions are likely to shape the decision. A technical demonstration, a worked case study, or a discussion with a subject specialist can give people that space.

Other formats may suit the task better. A simple product update may need only an email. A reference question may be easier to answer on a searchable page. Someone who wants to check one feature should not have to watch a 45-minute recording to find it.

Webinars also depend on other channels. Email can bring people to the session, social posts can introduce the topic, and an article can help readers find the recording later. Treating these as entirely separate competitors can hide how they work together.

Define the result before comparing channels

A registration, a live attendee, a qualified lead, and a new customer are different outcomes. Choose the one that matches your goal and use the same definition across the campaigns you compare.

• For an educational event, track whether the intended audience attended and whether the session answered its questions.
• For a prospect event, track relevant follow-up conversations and qualified opportunities.
• For customer training, track the task customers should be better able to complete.
• For an acquisition campaign, track new customers and the cost of acquiring them over a stated period.

Define qualification with the team that will handle the follow-up. A contact should not become a qualified lead just because a webinar platform exported an email address.

Calculate costs using your own numbers

Include platform fees attributable to the event, paid promotion, outside speakers or production help, and staff time. Use a consistent approach to shared subscriptions and labor so one channel does not look cheaper simply because some of its costs were left out.

For illustration, suppose an event costs $2,000 in total, produces 100 valid registrations, attracts 40 live attendees, and leads to ten qualified opportunities under your team's definition. Its cost per registration is $20, its cost per live attendee is $50, and its cost per qualified opportunity is $200. These are hypothetical figures, not webinar benchmarks.

Those measures answer different questions. None establishes return on investment. To estimate campaign ROI, compare the attributable gross profit with the campaign cost: subtract campaign cost from attributable gross profit, divide by campaign cost, and multiply by 100. State how you attributed the sales and which time period you used. Revenue alone leaves out the cost of delivering what you sold.

Be careful with attribution

A buyer may read an article, attend a webinar, talk to sales, and return through an email before purchasing. Decide how to record that path. Giving the webinar all the credit because it was the last tracked touch can overstate its role; ignoring it because the lead already existed can understate it.

Record new contacts separately from existing contacts. Keep a consistent follow-up window and report open opportunities separately from completed sales. B2B decisions may take longer than the week after an event, so an early report should say what remains unresolved.

Run a comparison you can learn from

Start with a narrow topic and a clear audience. Record the cost, registrations, attendance, relevant questions, and agreed next steps. Compare the result with a campaign aimed at a similar audience and outcome, while noting differences in timing and offer.

If registrations are strong but attendance is weak, investigate scheduling and reminders. If people attend but do not take the next step, review the topic, audience fit, and follow-up before buying more promotion. The answer may be a better webinar, a smaller one, or a different format altogether.

For help planning the session itself, see how to host an effective webinar. Set the success measure before you build the slides.