● Free calculator
Build your outbound infrastructure numbers.
How many inboxes, how many domains, how long to cover your TAM, and what the pipeline looks like at the end. Adjust the sliders to match your situation.
INFRASTRUCTURE PLANNER
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inboxes needed
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domains needed
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days to cover TAM once
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replies / week (3.5% blended)
PIPELINE CALCULATOR
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meetings / mo
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pipeline / mo
Assumptions behind these numbers
- 1 TAM coverage uses 2.5 touches per contact and assumes your daily send is consistent. Real coverage depends on sequence length and bounce rate.
- 2 The 3.5% blended reply rate is a conservative average across signal-based B2B cold email. It includes positive replies, out-of-office, and referrals. Positive-only rate is typically 1-2%.
- 3 Inbox limits assume a warmed inbox sending cold outbound only. If you share inboxes with newsletters or transactional mail, use the lower end of the emails-per-inbox slider.
Next step
Want us to sanity-check your numbers?
We review your TAM, infrastructure plan, and pipeline assumptions in a written GTM analysis, delivered within 48 hours.
