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AI SDR ROI Calculator (2026): Calculate Your AI vs Human SDR Return

Calculate your AI vs human SDR ROI with this step-by-step calculator. Input your lead volume, team size, and conversion rates to see projected cost per meeting, cost per SQL, and 12-month ROI.

By Head of AI Voice & Sales Systems
AI SDR ROI Calculator (2026): Calculate Your AI vs Human SDR Return — Prestyj
AI SDR ROI Calculator (2026): Calculate Your AI vs Human SDR Return — Prestyj

Use this calculator to estimate the ROI of deploying AI sales agents versus hiring human SDRs. Input your specific numbers and see projected cost per meeting, cost per SQL, cost per closed deal, and 12-month ROI across three scenarios.


Step 1: Input Your Numbers

InputYour NumberNotes
Monthly inbound leads_______Website forms, phone calls, chat
Monthly outbound prospects_______Cold lists, partner referrals
Average deal size (annual)$_______Revenue per closed customer
Current human SDR monthly cost$_______Salary + benefits + tools + management
AI agent monthly cost$_______Platform subscription + setup (amortized)

Step 2: Apply Conversion Benchmarks

ScenarioAI Response RateAI Contact RateAI Booking RateHuman Booking Rate
Conservative60%40%15%12%
Base case75%50%25%18%
Strong case85%60%35%25%

Step3: Calculate Projected Returns

For Each Scenario:

AI meetings booked = (Inbound + Outbound) × AI response rate × AI contact rate × AI booking rate
Human meetings booked = (Inbound + Outbound) × Human response rate × Human contact rate × Human booking rate
AI cost per meeting = AI monthly cost / AI meetings booked
Human cost per meeting = Human monthly cost / Human meetings booked

12-Month ROI:

AI 12-month ROI = (AI meetings × close rate × deal size - AI 12-month cost) / AI 12-month cost
Human 12-month ROI = (Human meetings × close rate × deal size - Human 12-month cost) / Human 12-month cost

Worked Example: 500 Leads/Month

InputValue
Monthly inbound leads300
Monthly outbound prospects200
Average deal size$5,000/year
Human SDR monthly cost$6,500
AI agent monthly cost$1,000
ScenarioAI Meetings/MoHuman Meetings/MoAI Cost/MeetingHuman Cost/MeetingAI 12-Mo ROIHuman 12-Mo ROI
Conservative3618$28$36122x1.8x
Base case6332$16$20338x3.2x
Strong case9045$11$14453x4.5x

Cost Per SQL Comparison

Cost per SQL = Cost per meeting × (1 - disqualification rate)
ScenarioAI Cost/SQLHuman Cost/SQLAI Advantage
Conservative$35$45013x cheaper
Base case$20$25013x cheaper
Strong case$14$18013x cheaper

Cost Per Closed Deal Comparison

Cost per closed deal = Cost per SQL × (1 / close rate)
ScenarioAI Cost/DealHuman Cost/DealAI Advantage
Conservative$175$2,25013x cheaper
Base case$100$1,25013x cheaper
Strong case$70$90013x cheaper

Adjusting for Your Specific Factors

Higher AI ROI If:

  • High inbound lead volume (200+ leads/month)
  • Short sales cycle (close within 30 days)
  • Multiple products/services to cross-sell
  • After-hours lead capture is critical

Lower AI ROI If:

  • Very low lead volume (under 50/month)
  • Complex enterprise sales (6+ month cycle)
  • High-ACV deals ($100K+) requiring human relationship building
  • Regulated industry requiring human oversight on all communications

FAQ

Q: How accurate is this calculator? A: The calculator provides benchmarks based on data from thousands of AI sales agent deployments. Your actual results will depend on lead quality, sales cycle, and offer. Most companies see results within 20–30% of the base case.

Q: What's the minimum lead volume for AI to make sense? A: Any company processing 50+ leads/month can benefit from AI. The ROI increases significantly at 200+ leads/month where human SDRs can't keep up.

Q: How long until I see results? A: Most companies see initial results within 2–4 weeks of deployment. Full ROI typically takes 60–90 days to materialize.

Q: Should I replace human SDRs entirely with AI? A: For most companies, the best model is hybrid: AI for speed, volume, and qualification; humans for complex discovery, relationship building, and high-value deals.



Want a custom ROI calculation for your specific situation? Book a demo and we'll run the numbers with your actual lead data.