Free Calculator
HOW MUCH MONEY IS
SLOW LEAD RESPONSE COSTING YOU?
Input your monthly lead volume, current response time, and average customer value. See exactly how much revenue you're losing to slow follow-up — calculated using published conversion data from Harvard Business Review and InsideSales.com research.
How many inbound leads do you receive per month?
Revenue per closed customer (lifetime or initial deal value)
% of leads you close when responding instantly (typical: 10–25% for local services)
Current monthly revenue from leads
Possible monthly revenue with 91-second AI response
You're leaving on the table:
Want to capture that $54,338/mo?
SCOPE MY AI INFRASTRUCTURE →Based on HBR “Short Life of Online Sales Leads” + InsideSales.com response-time research
Methodology
How this is calculated.
The calculator uses conversion-rate decay curves published in Harvard Business Review's “The Short Life of Online Sales Leads” (2011, updated 2024) and InsideSales.com's “Lead Response Management Study” (2007, 2018). Key findings used as baseline:
- → Companies responding in 5 min are 21× more likely to qualify the lead than companies responding in 30 min
- → The odds of converting a lead drop 80% in the first 30 minutes
- → Average US small business response time is approximately 47 hours
- → Best-in-class operators using AI infrastructure respond in 91 seconds or less, 24/7
Your specific industry may have different absolute numbers — but the directional impact of response time on conversion is consistent across every B2B and local service business measured.