Speed-to-lead: what does good actually look like?
5 minutes is the widely cited target. The uncomfortable benchmark is what businesses actually do. A 2011 Harvard Business Review audit found a 42-hour average, with 23% never responding at all.
The short answer
- The 5-minute target traces to research commonly attributed to MIT and InsideSales.com. Contacting a lead within 5 minutes versus 30 minutes changed contact odds by roughly 100 times and qualification odds by roughly 21 times, across more than 15,000 leads and 100,000 dials.
- A separate 2011 Harvard Business Review audit of 2,241 US firms found the real-world average response time was 42 hours. 23% of firms never responded at all. That is the honest baseline most businesses work from.
- The same Harvard Business Review analysis found firms responding within the first hour were nearly 7 times more likely to qualify the lead than those responding later. A more modest gap than the MIT/InsideSales figures, but still substantial.
- 'Good' realistically means moving much faster than the 42-hour average most businesses operate at. It does not have to mean a perfect 5-minute response on every lead around the clock.
The gap between the target and reality
Two studies get cited together on this topic, and it is worth being precise about which is which. The 5-minute figure, and the roughly 100x contact odds and 21x qualification odds between a 5-minute and 30-minute response, trace to research commonly attributed to MIT and InsideSales.com. It analyzed more than 15,000 leads and over 100,000 dials across six companies. This is the number most often quoted as the target.
A separate and more sobering data point comes from a 2011 Harvard Business Review analysis of 2,241 US firms. It audited actual response behavior rather than measuring the effect of fast response. It found an average response time of 42 hours, with 23% of firms never responding at all. The same analysis found that firms responding within the first hour were nearly 7 times more likely to qualify the lead than those responding later. A different finding, but pointing the same way. The two studies are often mixed up, with the 100x/21x figures sometimes wrongly attributed to Harvard. Cite each correctly.
What the research shows
| Source | Finding |
|---|---|
| MIT / InsideSales.com (2007), 15,000+ leads, 100,000+ dials | 5-minute vs. 30-minute response: ~100x higher contact odds, ~21x higher qualification odds |
| Harvard Business Review (2011), 2,241 US firms audited | 42-hour average response time; 23% never responded; response within 1 hour: ~7x more likely to qualify |
The 100x/21x figures are commonly misattributed to Harvard Business Review; they trace to the MIT/InsideSales analysis. Cite sources correctly.
What a realistic target looks like
Treat 5 minutes as the ideal ceiling for a hot inbound lead during staffed hours. Treat any real improvement over a multi-hour or next-day response as progress. The research shows the biggest drop-off happens in the earliest minutes and hours, not only at the extreme end. For hours when no one is watching for new leads, an automated acknowledgment closes some of the gap until a human follow-up happens.
Disclosure: SalesCrew is our product. Automated speed-to-lead actions, like an instant acknowledgment or automatic assignment on a new inbound lead, are on our roadmap and not shipped today. This page describes the research and general target rather than a SalesCrew feature available now.
Cite the correct study for each figure
Questions
- What is a realistic target if 5 minutes is not achievable?
- The research shows a steep drop-off. Even moving from a multi-hour or next-day response to a same-hour response captures meaningful gains. Treat 5 minutes as the ideal ceiling, not an all-or-nothing bar.
- Does the target change outside business hours?
- The studies measured response time generally, not only in business hours, and leads do not stop arriving outside them. An automated acknowledgment for after-hours submissions helps close the gap when a live 5-minute response is not staffed.
- Is the 5-minute number realistic for every business?
- It is a strong benchmark grounded in real research. Whether it is achievable depends on staffing and lead volume patterns specific to your business. Track your own response-time-to-conversion relationship for the most accurate target.