Lead Response Time and Speed-to-Lead Statistics

Lead response time is how long it takes a business to make first contact after a lead comes in. The best-known research shows speed matters most in the first five minutes: a 2007 InsideSales.com study found the odds of contacting a web lead were 100 times higher when called within 5 minutes than at 30 minutes. Yet most companies are far slower, and in a 2011 Harvard Business Review audit the average first response was 42 hours.

This page collects every major lead response time study, from the original 2007 and 2011 research to new 2024 to 2026 benchmarks. Every number is matched to its original source in the list at the end, we flag the popular statistics that cannot be traced to any study, and we show how an AI receptionist can close the gap.

What Lead Response Time Means

Lead response time is the time between a lead’s first contact (a web form, ad form, call or chat) and the business’s first reply. Speed to lead is the practice of making that time as short as possible.

The two terms are often used together. The difference is simple: lead response time is the measurement, and speed to lead is the goal.

A few points that matter when reading the statistics below:

• Most studies measure inbound lead response time, meaning leads that came to you, not cold outreach.
• Older studies measure odds of contact or qualification, not closed sales.
• Many newer figures come from vendors who sell response tools, so method and sample size matter.

Key Lead Response Time Statistics (Table With Sources)

These are the lead response time stats you can cite with confidence. The number in the last column matches the full source list at the end of this page.

Statistic	Study and year	Sample	Source
Odds of contacting a lead are 100x higher when called in 5 minutes vs 30 minutes	InsideSales.com / Dr. James Oldroyd, 2007	15,000+ leads, 100,000+ call attempts, 6 companies	Lead Response Management Study (PDF)
Odds of qualifying a lead are 21x higher at 5 minutes vs 30 minutes	InsideSales.com / Oldroyd, 2007	Same as above	Lead Response Management Study (PDF)
Firms contacting leads within an hour were nearly 7x as likely to qualify them as firms waiting even an hour longer	Harvard Business Review, 2011	1.25 million leads at 42 companies	HBR, The Short Life of Online Sales Leads
The same firms were more than 60x as likely to qualify leads as firms waiting 24 hours or longer	Harvard Business Review, 2011	Same as above	HBR article (full text copy, PDF)
Average first response was 42 hours	Harvard Business Review, 2011	2,241 U.S. companies audited	HBR article
23% of companies never responded to a web lead	Harvard Business Review, 2011	2,241 U.S. companies	HBR article
Conversion rates are 8x higher within 5 minutes vs 6+ minutes	InsideSales.com (XANT), 2021	5.7 million leads, 400+ companies	Lead Response Management 2021 (PDF)
Fewer than 1% of first attempts happen within 5 minutes	InsideSales.com (XANT), 2021	Same as above	Lead Response Management 2021 (PDF)
Only 7% of B2B SaaS companies responded within 5 minutes	Drift, 2017	433 companies	Drift Lead Response Survey
82% of consumers rate an immediate response (10 minutes or less) as important for sales questions	HubSpot Research	Not stated	HubSpot
635 of 1,000 B2B SaaS companies never replied to a demo request	RevenueHero, 2024	1,000 companies	RevenueHero study
More than 99% of B2B companies did not respond within 5 minutes	Workato, 2026	114 companies	Workato study

The Original Lead Response Time Studies Explained

Two studies created the famous “respond in five minutes” rule. Both involve the same researcher, Dr. James Oldroyd, which is why they are often mixed up.

The 2007 InsideSales.com and MIT Lead Response Management Study

This is the source of the “100 times” and “21 times” figures. Dr. James Oldroyd, then at MIT, analyzed three years of InsideSales.com call data from six companies, covering more than 15,000 leads and over 100,000 call attempts. The findings were presented with InsideSales.com CEO Dave Elkington at the MarketingSherpa B2B Demand Generation Summit in October 2007.

Key findings from the original presentation:

• The odds of contacting a lead drop 100 times when you call at 30 minutes instead of 5 minutes.
• The odds of qualifying a lead drop 21 times over the same window.
• Within the first hour, contact odds fall by more than 10 times and qualification odds by more than 6 times.
• Wednesday and Thursday were the best days to make contact, 49.7% better than the worst day.
• 4 to 6 p.m. was the best window for contact, 114% better than the worst time block.

What it did not measure: The study looked at contact and qualification, not closed sales. The figures are odds ratios, not conversion rates. It was also commercial platform data from a company that sold lead response software.

The 2011 Harvard Business Review Study

The second study, “The Short Life of Online Sales Leads,” was published in Harvard Business Review in March 2011 by James Oldroyd, Kristina McElheran and David Elkington. It had two parts.

Part 1: an audit of 2,241 U.S. companies. The researchers submitted web leads and timed the replies:

• 37% responded within one hour
• 16% responded within one to 24 hours
• 24% took more than 24 hours
• 23% never responded at all
• The average response time, among companies that replied within 30 days, was 42 hours

Part 2: an analysis of 1.25 million sales leads received by 29 B2C and 13 B2B companies. Firms that tried to contact leads within an hour were nearly 7 times as likely to qualify the lead as firms that waited even an hour longer, and more than 60 times as likely as firms that waited 24 hours or longer.

The HBR article is paywalled. Links to the article and a full-text copy are in the source list below.

Common Misquotes of These Studies

Many articles get these numbers wrong. Here is what the studies actually say.

What people say	What the study actually says
“Calling in 5 minutes makes you 100x more likely to close”	100x is the odds of contact, not sales (2007)
“5 minutes vs 10 minutes”	The 100x comparison is 5 minutes vs 30 minutes
“The Harvard 5-minute study”	The 5-minute figures come from the 2007 InsideSales.com study. HBR (2011) compared one hour vs later
“The MIT study”	It was InsideSales.com data analyzed by an MIT researcher, not an MIT publication
“Average response time is 47 hours”	HBR reported 42 hours

Speed to Lead Statistics Over Time

Later research shows companies are still slow, even with better tools. This speed to lead chart summarizes how response performance has been measured across the major studies.

Year	Study	Sample	Responded within 5 minutes	Never responded or no reply found
2011	Harvard Business Review	2,241 U.S. companies	Not measured (37% within 1 hour)	23%
2017	Drift	433 B2B SaaS companies	7%	55% did not reply within 5 business days
2021	InsideSales.com (XANT)	5.7 million leads	Under 1% of first attempts	77% of leads got no response
2024	RevenueHero	1,000 B2B SaaS companies	Not reported (172 replied in under 2 minutes)	63.5% (635 of 1,000)
2026	Workato	114 B2B companies	Under 1%	Nearly 1 in 5 never replied by email

The pattern is consistent. Across 15 years of studies, only a small share of companies respond within five minutes, and a large share never respond at all.

Newer 2024 to 2026 Lead Response Time Benchmarks

These recent studies show where response times stand today.

RevenueHero B2B Demo Request Test (2024)

RevenueHero submitted demo requests to 1,000 B2B SaaS companies and published the results in March 2024.

• 635 companies never replied
• The 365 that replied took an average of 1 day, 5 hours and 17 minutes
• 172 companies replied in under two minutes, and automated replies were counted

Workato B2B Lead Response Study (2026)

Workato filled in demo requests at 114 B2B companies and published the findings in March 2026.

• More than 99% of companies did not respond within 5 minutes
• Only 31% responded by phone at all, and only 42% of those called within an hour
• Average personalized email response was 11 hours 54 minutes, and phone response was 14 hours 29 minutes
• Companies using a lead routing tool responded in 3 hours 32 minutes on average, compared with nearly 13 hours without one

Jobber Home Service Trends Report (2026)

Jobber surveyed 1,050 U.S. home service business owners in December 2025 for its 2026 Home Service Trends Report.

• 28% of customers expect an immediate reply and another 28% expect a reply within one hour
• Only 20% of businesses reply to leads within an hour, while 60% reply the same day
• HVAC pros were the slowest group to respond within the hour

The report surveyed business owners, so the customer expectation figures reflect what owners reported rather than a separate consumer survey.

Lead Response Time by Industry

Response habits vary by industry. These are the most reliable recent figures for three lead-driven sectors.

Home Services

In Jobber’s 2026 report, only 20% of home service businesses said they reply to new leads within an hour, and HVAC companies were the slowest of the trades surveyed. With more than half of customers expecting a reply within an hour, many home service companies are losing leads before the first call. For HVAC, plumbing and other trades, an answered call or instant callback is often the difference between a booked job and a lost one. Our guide to the best HVAC answering service options compares tools that fix this.

The same pattern runs across all home services, from plumbing and roofing to remodeling, where most new jobs start with a call or a web form.

Real Estate

Real estate analyst Mike DelPrete ran more than 100 secret shopper tests across more than 25 U.S. brokerages in 2024, sending online inquiries about specific homes through brokerage websites.

• 47% of online property inquiries received no response
• The average response time was 8 hours and 17 minutes
• The median response time was 39 minutes

For real estate agents, that gap is costly, because buyers often contact several agents about the same home.

Legal Services

Clio’s 2024 Legal Trends Report included a secret shopper study of 500 U.S. law firms, summarized by the Illinois Supreme Court Commission on Professionalism.

• Only 33% of firms responded to emails, down from 40% in 2019
• Only 40% answered the phone, down from 56% in 2019
• 48% of firms were essentially unreachable by phone

For legal services, a missed call often means a potential client simply calls the next firm on the list.

B2B Sales

B2B companies have been studied most often. Drift (2017) found 7% responded within five minutes, RevenueHero (2024) found 63.5% never replied to a demo request, and Workato (2026) found more than 99% missed the five-minute window. See how AI appointment setters for B2B sales handle demo requests instantly.

Lead Response Time Statistics You Should Stop Quoting

Some of the most shared speed to lead stats have no traceable primary source. AI tools and careful readers are increasingly checking sources, so citing these can hurt your credibility.

• “78% of customers buy from the company that responds first.” Often credited to a “Lead Connect” survey. No published report or method can be found.
• “35 to 50% of sales go to the vendor that responds first.” Attributed to InsideSales.com, but no original study has been traced.
• McKinsey lead response time studies. We found no McKinsey publication with a lead response time or “respond in X minutes” statistic for warm leads. The famous figures come from InsideSales.com and HBR.
• “Respond in one minute for a 391% lift.” This comes from Velocify (formerly Leads360) vendor data from around 2012, based on about 3.5 million leads. It is real vendor data, but it is not peer-reviewed, and it reflects phone-heavy industries. Use it with that caveat.

What Is a Good Lead Response Time?

There is no official lead response time standard, but the research points to clear targets.

Response time	What the research suggests
Under 1 minute	Best practice for phone-based industries such as home services, real estate and insurance
Under 5 minutes	The benchmark from the 2007 and 2021 InsideSales.com studies
Under 1 hour	The minimum from the 2011 HBR study, where qualification odds were nearly 7x higher
Same day	What most customers in home services expect, according to Jobber’s 2026 report
24 hours or more	Qualification odds were over 60x lower in the HBR study

The practical answer: aim for under five minutes on every inbound lead, every hour of the day.

What to Do With These Statistics

The research agrees on one thing. The faster you make first contact, the better your odds, and most businesses lose leads simply by being slow. Here is how to act on it.

How to Improve Lead Response Time

1. Measure your current response time. Submit a test lead through each form and time the reply. Check nights and weekends too.
2. Send every lead to one place instantly. Connect web forms, ad forms and calls to your CRM so no lead sits in an inbox. This guide explains CRM integration options.
3. Alert your team in real time. Lead routing and notifications cut delays. In Workato’s study, routing tools cut average response from nearly 13 hours to 3 hours 32 minutes.
4. Call first, then text. Most of the classic studies measured phone contact. Follow up a missed call with an SMS straight away, as a multi-channel AI SDR does.
5. Keep following up. InsideSales.com found 7 or more attempts yield 15% more connections, yet 81% of sellers stop at 5 or fewer.
6. Cover after hours. Leads do not stop at 5 p.m. Use a 24/7 call answering service or automation to respond outside business hours.

How to Reduce Lead Response Time With Automation

The fastest way to hit a five-minute target every time is to remove the human delay from first contact. An AI appointment setter calls or texts a lead the moment the form arrives, asks qualifying questions and books the appointment.

The DBT AI is built for exactly this. It calls new leads from Meta lead forms, Google Ads lead forms and website forms within seconds, usually in under 10, qualifies them and books them into your calendar. If a lead does not answer, it texts and follows up again, then sends reminders and rebooks no-shows. Here is how AI callers qualify leads and book meetings.

In one published The DBT AI deployment, a U.S. real estate team moved from a 15 to 30 minute average response to calls within 10 seconds, reached a 98% contact rate and booked 35% more property showings. See the full details in our case studies.

FAQ

What did the InsideSales.com 5-minute lead response study find?

The 2007 Lead Response Management Study by Dr. James Oldroyd and InsideSales.com found the odds of contacting a lead were 100 times higher when called within 5 minutes than at 30 minutes. The odds of qualifying the lead were 21 times higher. It analyzed more than 15,000 leads and 100,000 call attempts across six companies.

Is there McKinsey research on sales response time for warm leads?

We could not find any McKinsey study that gives a lead response time or speed to lead statistic for warm leads. The well-known figures come from the 2007 InsideSales.com study and the 2011 Harvard Business Review article. Treat any “McKinsey” response time statistic as unverified unless it links to an original McKinsey report.

Does responding to leads within 5 minutes increase conversion rates?

Yes, according to the research. InsideSales.com’s 2021 study of 5.7 million leads found conversion rates were 8 times higher when leads were contacted within 5 minutes than after 6 or more minutes. The earlier 2007 study showed 100 times higher contact odds at 5 minutes compared with 30 minutes.

What does the Harvard Business Review lead response time study say about 5 minutes?

The 2011 HBR study did not test 5 minutes. It found companies contacting leads within an hour were nearly 7 times as likely to qualify them as those waiting an hour longer, and more than 60 times as likely as those waiting 24 hours. The 5-minute figures come from the 2007 InsideSales.com study by the same lead researcher.

How do you improve lead response time?

Measure your current response time with test leads, then route every form and call to one system instantly. Add real-time alerts or lead routing, call first and text if there is no answer, and follow up at least six or seven times. For a consistent response under five minutes, use automation such as an AI appointment setter that calls leads within seconds.

How can a business improve WhatsApp response time for leads?

Use WhatsApp Business features such as greeting messages, away messages and saved quick replies to answer common questions instantly. For higher volumes, connect the WhatsApp Business Platform to a CRM or chatbot so new messages are routed and answered automatically. Set a target, such as replying within five minutes during business hours, and measure it weekly.

What is a good lead response time?

Under five minutes is the benchmark most supported by research. Phone-driven businesses such as home services and real estate should aim for under one minute where possible. Anything beyond one hour sharply lowers the odds of qualifying the lead, according to the 2011 HBR study.

What is the difference between speed to lead and lead response time?

Lead response time is the measurement: how many minutes or hours pass before first contact. Speed to lead is the strategy of keeping that time as short as possible. A business with a fast speed to lead process has a short lead response time.

The Bottom Line

The lead response time research is consistent across 15 years. Contacting a lead within minutes sharply raises your odds of reaching and qualifying them, yet most businesses still take hours or never respond. The opportunity is simple: be the business that answers first.

If you want every lead called within seconds, day or night, The DBT AI does it automatically. Use the “Get a call now” form on The DBT AI to experience it, or book a demo .