Webinar Statistics and Benchmarks for 2026: Attendance, Conversion, and B2B Usage Data

This briefing collects verified webinar statistics and performance benchmarks from platform datasets and B2B research, covering registration-to-attendance conversion, average attendance, live versus on-demand viewing, optimal length and timing, and how widely B2B marketers use the format. The goal is a reference you can cite, with every number attributed to a named publisher, a year, and a geography, and with single-platform or self-reported figures clearly flagged. Webinar benchmarks vary widely by platform, audience, and industry, so the numbers below should be read as directional ranges rather than universal constants.

Executive Summary

• The registration-to-attendance conversion rate sat at 57% in ON24’s platform dataset for 2024, meaning roughly 4 in 10 registrants never showed up live (Source: ON24 Webinar Benchmarks Report, 2025, covering 2024 data; single-platform).
• A separate B2B-only dataset put the show-up rate at 33% in 2024, up from 29% in 2023, illustrating how widely attendance benchmarks diverge by platform and audience (Source: Goldcast 2025 B2B Webinar Benchmark Report, analyzing 2024 data; single-platform).
• The average webinar drew 216 attendees in 2024, a 7% year-over-year increase, in ON24’s dataset (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• On-demand viewing accounted for 50% of all webinar attendees in ON24’s 2024 dataset, confirming that replay is now half the audience, not an afterthought (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• Average live attention reached 51 minutes in 2024, a 7% year-over-year increase (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• 55% of B2B marketers used webinars in the prior 12 months, and 51% ranked them among their most effective content distribution channels (Source: Content Marketing Institute / MarketingProfs, B2B Content Marketing 2025 report, fielded June to August 2024, mostly North America).
• Webinars scheduled for 60 minutes attracted 67% of registrations, versus 8% for 30-minute sessions, in GoTo’s webinar dataset (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).
• Wednesday and Thursday each captured 26% of webinar attendees, making midweek the dominant scheduling window (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).

Key Findings

• The registration-to-attendance conversion rate was 57% across ON24’s platform in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• A B2B-focused dataset reported a 33% live show-up rate in 2024, up from 29% in 2023, across 19,531 webinars and 418 brands (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).
• The average webinar had 216 attendees in 2024 in ON24’s dataset, up 7% year over year (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• The average B2B webinar attracted 238 registrants and 51 attendees per event in 2024 (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).
• On-demand viewing made up 50% of all webinar attendees in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• Nearly 80% of B2B webinars were made available on demand after the live event in 2024 (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).
• Average live attention was 51 minutes in 2024 in ON24’s dataset, while the B2B-only Goldcast dataset reported a lower average watch time of 29 minutes (Source: ON24 Webinar Benchmarks Report, 2025, and Goldcast 2025 B2B Webinar Benchmark Report; both single-platform).
• 60-minute webinars captured 67% of registrations versus 8% for 30-minute sessions (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).
• 45 to 60 minutes remained the most popular webinar length in 2024, while short-form webinars of 29 minutes or less grew from 3% to 11.3% of events (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).
• Wednesday and Thursday each accounted for 26% of attendees, and midweek days accounted for roughly 77% of webinar activity (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).
• The best-attended start time clustered between 11 a.m. and 2 p.m. local business hours (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).
• 55% of B2B marketers used webinars in the prior 12 months (Source: Content Marketing Institute / MarketingProfs, B2B Content Marketing 2025 report, fielded June to August 2024).
• 51% of B2B marketers ranked webinars among their most effective distribution channels, and 32% planned to increase webinar investment in 2025 (Source: Content Marketing Institute / MarketingProfs, B2B Content Marketing 2025 report).
• The CMI 2025 dataset was built from 980 B2B respondents, mostly in North America, fielded June 25 to August 16, 2024 (Source: Content Marketing Institute / MarketingProfs, B2B Content Marketing 2025 report).
• The Goldcast B2B dataset showed a 225% increase in webinar volume and a 39.9% increase in participating brands in 2024 versus 2023, signaling rapid format expansion (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).

Registration-to-Attendance Conversion

The single most contested webinar metric is the share of registrants who actually attend live. The spread between datasets is large because audiences and counting methods differ. ON24 reported a 57% registration-to-attendee conversion rate in its 2024 platform data (Source: ON24 Webinar Benchmarks Report, 2025; single-platform). Goldcast, analyzing B2B-only events, reported a 33% live show-up rate in 2024, up from 29% in 2023 (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform). The gap reflects different audience mixes and whether on-demand views are folded into the denominator. The practical takeaway is that a 35% to 60% live attendance band is realistic, and any single benchmark should be sanity-checked against your own audience and registration source.

Average Attendance and Audience Size

Audience size depends heavily on brand reach and promotion. ON24 reported an average of 216 attendees per webinar in 2024, a 7% year-over-year increase (Source: ON24 Webinar Benchmarks Report, 2025; single-platform). Goldcast’s B2B dataset reported a lower average of 238 registrants and 51 attendees per event in 2024 (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform). These averages mask wide variance: a handful of high-reach brands pull the mean up, so the median experience for most teams sits well below the headline average. Treat per-webinar attendance averages as ceilings shaped by the largest programs, not typical outcomes.

Live vs On-Demand Viewing

On-demand consumption is now structurally half of the webinar audience. ON24 reported that on-demand viewing accounted for 50% of all webinar attendees in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform). Nearly 80% of B2B webinars were made available on demand after the live event in 2024, so replay availability is close to standard practice (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform). The implication is that the live event is increasingly a content-production moment as much as a live gathering, and that measuring success only on live turnout undercounts roughly half the reach.

Length, Timing, and Engagement

Webinar length and timing benchmarks come mostly from platform datasets and should be read as audience-behavior signals, not rules. 60-minute webinars attracted 67% of registrations, while 30-minute sessions drew just 8%, in GoTo’s dataset (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform). The 45-to-60-minute window remained the most popular length in 2024, though short-form webinars of 29 minutes or less grew from 3% to 11.3% of events, showing demand for tighter formats (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform). On timing, Wednesday and Thursday each accounted for 26% of attendees, with midweek capturing roughly 77% of activity, and start times between 11 a.m. and 2 p.m. local time performed best (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform). Average live attention reached 51 minutes in 2024 in ON24’s dataset, a 7% year-over-year increase (Source: ON24 Webinar Benchmarks Report, 2025; single-platform), versus a lower 29-minute average watch time in Goldcast’s B2B dataset (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).

B2B Usage and Effectiveness

Adoption data from B2B marketers comes from a survey rather than platform telemetry, which makes it more comparable across vendors but subject to self-report bias. 55% of B2B marketers used webinars in the prior 12 months (Source: Content Marketing Institute / MarketingProfs, B2B Content Marketing 2025 report). 51% ranked webinars among their most effective distribution channels, putting the format roughly on par with in-person events (Source: Content Marketing Institute / MarketingProfs, 2025). 32% expected their organization to increase webinar investment in 2025, a smaller share than for video, which signals steady rather than surging commitment (Source: Content Marketing Institute / MarketingProfs, 2025). This survey drew 980 B2B respondents, mostly in North America, fielded between June 25 and August 16, 2024.

Original Synthesis

The following insights are derived by combining the public datasets above. They are directional and limited by the fact that the underlying numbers come from different platforms with different audiences, so they should not be read as precise system-wide measurements.

• Conversion-rate spread ratio. ON24’s 57% live conversion rate is about 1.7 times Goldcast’s 33% B2B show-up rate for the same 2024 period (57 divided by 33 equals 1.73). Formula: higher rate divided by lower rate. Inputs: ON24 Webinar Benchmarks Report 2025 and Goldcast 2025 B2B Webinar Benchmark Report. Limitation: the two platforms count audiences and denominators differently, so the ratio measures methodological divergence as much as real-world difference.
• The on-demand half. Combining ON24’s finding that on-demand is 50% of attendees with Goldcast’s finding that nearly 80% of B2B webinars are posted on demand implies that replay availability is now near-universal while replay viewing is the marginal driver of total reach. Inputs: ON24 Webinar Benchmarks Report 2025 and Goldcast 2025 B2B Webinar Benchmark Report. Limitation: the two figures measure different things (share of viewers vs share of events) and cannot be multiplied; they are presented as a directional pairing only.
• Attention efficiency band. Across the two platform datasets, average attention ranged from 29 minutes (Goldcast B2B) to 51 minutes (ON24) against a dominant 45-to-60-minute scheduled length, implying viewers watch roughly 50% to 85% of a typical session. Formula: average watch minutes divided by scheduled length midpoint of about 52.5 minutes. Inputs: ON24 Webinar Benchmarks Report 2025 and Goldcast 2025 B2B Webinar Benchmark Report. Limitation: watch-time definitions differ between platforms and the length midpoint is an approximation.

Tables

Sources noted in the final row of each entry above. All figures are single-platform datasets except where otherwise stated.

Source: Content Marketing Institute and MarketingProfs, B2B Content Marketing 2025 report, fielded June to August 2024, mostly North America.

Charts to build

• Conversion-rate divergence by dataset. Data needed: ON24 57% live conversion vs Goldcast 33% B2B show-up, 2024. Source: ON24 Webinar Benchmarks Report 2025 and Goldcast 2025 B2B Webinar Benchmark Report. Insight: the same year produces very different benchmarks. Citation-worthy because it visually warns against quoting a single attendance number.
• Registration share by webinar length. Data needed: 67% for 60 minutes, 8% for 30 minutes. Source: GoTo / GoToWebinar Big Book of Webinar Stats. Insight: longer scheduled sessions still pull most registrations. Citation-worthy as a planning input.
• Attendees by day of week. Data needed: 26% Wednesday, 26% Thursday, midweek roughly 77% total. Source: GoTo / GoToWebinar Big Book of Webinar Stats. Insight: midweek dominance. Citation-worthy for scheduling decisions.
• Live vs on-demand audience split. Data needed: 50% on-demand share of attendees, 2024. Source: ON24 Webinar Benchmarks Report 2025. Insight: replay is half the audience. Citation-worthy for measurement strategy.
• B2B webinar adoption vs effectiveness. Data needed: 55% use, 51% rank effective, 32% plan to increase, 2024 survey. Source: Content Marketing Institute / MarketingProfs 2025. Insight: steady, not surging, commitment.

Inline bar example, on-demand share of attendees in 2024 (Source: ON24 Webinar Benchmarks Report, 2025):

Methodology

Sources were selected for verifiability, recency, and proximity to primary data. Priority went to platform-operator datasets that aggregate real webinar telemetry (ON24, GoTo, Goldcast) and to a recurring B2B marketer survey from the Content Marketing Institute and MarketingProfs. Each statistic was required to carry a named publisher, a year, and a geography or audience scope. Statistics that could not be tied to a named source with a verifiable URL were excluded. Where two credible datasets disagreed, such as the 57% versus 33% attendance figures, both are reported with the divergence explained rather than averaged into a false consensus. Platform telemetry is labeled single-platform because it reflects one vendor’s customer base and is not a census of all webinars. Survey figures are labeled as self-reported. Derived insights in the Original Synthesis section use only the cited inputs and state their limitations. No numbers were estimated or invented. Last updated June 2026.

Source Quality

Tier 1 (primary or official bodies): No government or academic dataset covers webinar performance directly, so this asset has no Tier 1 sources, which is itself a limitation of the topic.

Tier 2 (platform operators and recurring industry research with disclosed methodology): ON24 Webinar Benchmarks Report 2025; GoTo / GoToWebinar Big Book of Webinar Stats; Goldcast 2025 B2B Webinar Benchmark Report; Content Marketing Institute and MarketingProfs B2B Content Marketing 2025 report.

Tier 3 (reputable secondary aggregators used only for cross-checking, not as primary citations): DemandSage and Zippia webinar statistics roundups, used to corroborate figures already confirmed at a Tier 2 source.

Most Quotable Statistics

• On-demand viewing made up 50% of all webinar attendees in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• The registration-to-attendee conversion rate was 57% in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).
• B2B live show-up rates rose to 33% in 2024 from 29% in 2023 (Source: Goldcast 2025 B2B Webinar Benchmark Report; single-platform).
• 55% of B2B marketers used webinars in the prior 12 months (Source: Content Marketing Institute / MarketingProfs, 2025).
• 60-minute webinars captured 67% of registrations versus 8% for 30-minute sessions (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).

Data Limitations

Every attendance and engagement number here comes from a single platform’s customer base, so it does not represent all webinars globally. Attendance benchmarks diverge sharply between datasets (57% vs 33% for 2024) because of different audiences and counting rules, so no single figure should be quoted as the attendance rate. The GoTo timing and length figures are not dated to a specific year in the public source and should be treated as general behavioral signals rather than current-year data. B2B adoption figures are self-reported by marketers and skew North American. No government or academic dataset validates these numbers, so all benchmarks are industry-sourced. Watch-time and length definitions are not standardized across vendors.

Recommended Dataset Fields

For a downloadable CSV companion, include: metric_name, value, unit, year, geography, audience_scope (all / B2B / B2C), data_type (platform_telemetry / survey), publisher, report_name, source_url, single_platform_flag (yes/no), self_reported_flag (yes/no), and notes.

Press Summary

Webinar benchmarks for 2026 show a format that is mature, replay-driven, and hard to summarize with a single number. In 2024, ON24 measured a 57% registration-to-attendance conversion rate and 216 average attendees per webinar, while a B2B-only dataset from Goldcast put the live show-up rate at 33%, up from 29% a year earlier. The clearest shared finding is that on-demand viewing now equals roughly half of all webinar attendance, so replay is no longer secondary. Length and timing data from GoTo point to 60-minute sessions and midweek late-morning slots as the most attended, with Wednesday and Thursday each capturing 26% of attendees. On adoption, the Content Marketing Institute found 55% of B2B marketers used webinars in 2024 and 51% rated them among their most effective channels. The data is industry-sourced and single-platform, with no government benchmark available, so figures should be read as directional ranges. All statistics carry named publishers and years.

Suggested Headlines

• Half of All Webinar Viewers Now Watch On Demand, 2024 Benchmark Data Shows
• Webinar Attendance Benchmarks Diverge: 57% vs 33% for the Same Year
• The 60-Minute Webinar Still Wins: 67% of Registrations Go to Hour-Long Sessions
• 55% of B2B Marketers Used Webinars in 2024, Ranking Them Among Top Channels
• Midweek and Late Morning: What the Data Says About When to Run a Webinar

FAQ

What is a good registration-to-attendance rate for a webinar? Benchmarks range widely: ON24 reported a 57% conversion rate for 2024, while Goldcast’s B2B dataset reported 33% (Source: ON24 Webinar Benchmarks Report 2025; Goldcast 2025 B2B Webinar Benchmark Report; both single-platform).

How many people attend the average webinar? ON24 reported an average of 216 attendees per webinar in 2024, up 7% year over year (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).

What share of webinar viewing is on demand? On-demand accounted for 50% of all attendees in 2024 (Source: ON24 Webinar Benchmarks Report, 2025; single-platform).

How long should a webinar be? 45 to 60 minutes was the most popular length in 2024, and 60-minute sessions drew 67% of registrations (Source: Goldcast 2025 B2B Webinar Benchmark Report; GoTo / GoToWebinar Big Book of Webinar Stats; both single-platform).

What is the best day to host a webinar? Wednesday and Thursday each accounted for 26% of attendees (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).

What is the best time of day to host a webinar? Start times between 11 a.m. and 2 p.m. local business hours performed best (Source: GoTo / GoToWebinar Big Book of Webinar Stats; single-platform).

How long do attendees actually watch? Average live attention was 51 minutes in 2024 in ON24’s dataset and 29 minutes in Goldcast’s B2B dataset (Source: ON24 Webinar Benchmarks Report 2025; Goldcast 2025 B2B Webinar Benchmark Report; both single-platform).

How many B2B marketers use webinars? 55% used webinars in the prior 12 months (Source: Content Marketing Institute / MarketingProfs, 2025).

Do marketers consider webinars effective? 51% of B2B marketers ranked webinars among their most effective distribution channels (Source: Content Marketing Institute / MarketingProfs, 2025).

Are companies investing more in webinars? 32% of B2B marketers planned to increase webinar investment in 2025, a smaller share than for video (Source: Content Marketing Institute / MarketingProfs, 2025).

For teams turning these benchmarks into a program, our overview of webinar marketing strategies to drive leads and sales covers the execution side, and CO Consulting publishes research like this to support data-driven growth decisions. If you want help interpreting these benchmarks against your own data, you can book a consultation.

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