CAC by Channel Calculator
Calculate blended and channel-specific CAC across paid, organic, content, and outbound. Identify which channels deserve more budget.
Why Channel-Level CAC Beats Blended
Blended CAC ($X total spend ÷ Y total customers) hides where you're winning and losing. A company with $200 blended CAC might be running $50 CAC on content and $500 CAC on paid ads — radically different stories. Channel-level CAC tells you (1) which channels deserve more budget, (2) which to cut or fix, and (3) where you can negotiate or insource for efficiency gains. Source: OpenView Partners SaaS Benchmarks, Bessemer Cloud Index. Last updated: May 2026.
Healthy CAC Benchmarks by Stage
| Company ARR | Healthy CAC | Target LTV:CAC | CAC Payback |
|---|---|---|---|
| <$1M ARR (seed) | $2,000-$8,000 | 3:1+ | <24 months |
| $1M-$10M ARR (Series A) | $1,500-$15,000 | 3:1+ | <18 months |
| $10M-$50M ARR (Series B-C) | $3,000-$50,000 (varies enterprise vs SMB) | 4:1+ | <12 months |
| $50M+ ARR (scale) | Channel-dependent | 5:1+ | <12 months |
What to Do When a Channel Is Underperforming
If paid CAC is 3-5× content CAC and content can scale, shift budget from paid to content over 6-12 months. If outbound CAC is highest, look at: SDR-to-AE handoff conversion, ICP fit (selling to wrong customer profile?), and quota attainment (over-hired?). Cut the worst-performing channel only after testing within it — bad creative/copy/targeting can make any channel look broken when it's actually fixable.
Fully-Loaded CAC vs Marketing-Only CAC
Fully-loaded CAC includes salaries, benefits, software, agencies, ads. Marketing-only CAC includes only ad spend and direct campaign costs. Investors (especially VCs) typically want fully-loaded. Run both — use marketing-only for operational decisions (where to shift this month's spend) and fully-loaded for board reporting. The gap between them tells you how efficient your team is.
CAC by Channel Calculator: Formula and Worked Example
The CAC by channel calculator formula is: Channel Spend ÷ Customers Acquired from That Channel. Worked example: a Series A SaaS spends $20,000 paid ads acquiring 40 customers ($500 paid CAC), $8,000 content acquiring 30 customers ($267 content CAC), $15,000 outbound acquiring 12 customers ($1,250 outbound CAC), $2,000 referrals acquiring 18 customers ($111 referral CAC). Blended CAC is $45,000 ÷ 100 = $450. The channel split exposes outbound running 4.7× content efficiency — clear signal to fix outbound playbook (ICP, SDR conversion) before adding budget. Public SaaS comps disclose blended CAC in SEC EDGAR 10-K filings (S&M expense ÷ net new customers) — useful triangulation when investors challenge your number. Last updated: 2026-06-24.