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One SDR can safely send 30 emails a day. This outbound GTM system sends 300, and books ten times the meetings, pipeline and revenue.

A sales development rep sends from one company mailbox, and a mailbox is only safe for around 30 emails a day whoever is behind it. If you sell services, B2B software, or run an agency, this calculator prices the AI-led outbound go-to-market (GTM) system we build for clients: the domains, the inboxes, the software that sends the emails, the contact data, and the automation that runs it. Enter a few inputs about your business, and you will see the monthly cost sitting next to the pipeline and closed revenue it should return.

Your outbound system, in one view

Tell us who you sell to and how many of them you want to reach each month. You get the monthly cost of everything it runs on, the people it actually emails to get there, and the meetings, pipeline and revenue that should come out of it.

Who do you sell to?

Local businesses you want to reach each month 700
10010,000
One owner per business.
%
2026 B2B average is 3.4%.
$
What one closed customer is worth in the first year.
%
Your own close rate beats any benchmark.

Who runs it?

Setting up domains, building lists, writing the emails, handling replies.
$
Yours, or whoever picks this up.
Most people take 6 to 12 months to get this working from scratch.
$0 Cost / month tools + running it
0 Businesses reached per month
0 Replies per month
0 Meetings held per month
$0 Pipeline created per month
$0 Closed revenue per month

Stack cost per business reached$0
Stack cost per meeting$0
Return on stack spend0x
What you will be running0 inboxes
First meeting lands
You break even

Where these numbers come from
  • 3.4% reply rate. The 2026 business-to-business cold email benchmark average, down from 5% in 2025 and 8.5% in 2019. Top performers reach 8 to 12%.
  • 20% of replies are positive. An analysis of more than two million cold emails put the figure near 14%. Strong campaigns reach 50%. The page uses 20%.
  • 50% of positive replies become a held meeting. The rest cancel, no-show or go quiet.
  • 30 safe sends per mailbox per day. The conservative standard for cold sending from a warmed mailbox. Technical limits are far higher, deliverability limits are not.
  • Every tool price was read from the vendor's own pricing page rather than a comparison article, and each one is editable in the section below.
  • At these defaults, 2,100 contacts produce 7.1 held meetings. That is 0.34% of contacts, against a published contact-to-meeting range of 0.5% to 2.5%, so the funnel on this page sits below the benchmark rather than above it.
For whoever has to sign off on it Adjust every number Eight steps: volume, ICP, sizing, domains and inboxes, tools, automation, outcomes, SDR comparison.
Step 1 — Volume

Start with what you want to send.

An account is one business you are trying to win, and it is worth one deal however many people you email inside it. Drive the model from whichever number you actually know. The other two are calculated from it.

Accounts entering the sequence each month. One account is one possible deal.
One owner per business.
Steps in the sequence. One contact at 3 steps is 3 sends.
Weekdays only is the safe default.
Step 2 — Who you are targeting

The data stack depends entirely on your ICP.

This is where most cost estimates go wrong. Sending infrastructure is nearly identical for everyone. What changes is how hard your contacts are to find, and that difference is larger than the entire sending bill.

Step 3 — Infrastructure needed

Sizing, derived from your volume.

Dashed fields are calculated. Type over any of them to override, and the badge turns gold so you can see what you have changed.

Thirty is the conservative standard. Higher trades deliverability for volume.
Domains are what get burned. Three limits the blast radius.
%
You always pull more than you keep. This is what you pay to scrape, enrich and verify.
Step 4 — Fixed core

Domains, inboxes, sending software. Everyone pays these.

Domain pricing is the one line that changes materially in year two, which is why the rotation toggle sits here rather than in a footnote.

$
What you pay on day one.
$
What you pay every year after, if you keep them.
$
Google Workspace list price is $8.40 a month. Cold-email resellers run $1.50 to $4.50 per inbox for the same thing, so enter what you actually pay.
Rotating means buying fresh domains rather than renewing, so year two is charged at first-year pricing again. Leave this off if you keep and warm the same domains.
$
The tier steps up with your volume. Override if you are on a legacy or annual rate.
Step 5 — Variable stack

Sourcing, verification, enrichment.

Step 6 — Automation

Smartlead sends. It does not tell you anything.

There is no "email me when a lead replies", and a campaign that auto-pauses on its own bounce protection does not notify you either. Two n8n workflows on Smartlead's webhooks fix both: one fires on a reply, one fires only when a campaign moves to paused. They share one webhook address, so a new campaign is a settings change rather than a new workflow.

Step 7 — Outcomes

What the spend is supposed to buy.

Cost only means something next to what it returns. These defaults are conservative industry benchmarks, not promises. Replace them with your own numbers the moment you have them.

%
Any reply, of contacts reached. The 2026 B2B benchmark average is 3.43%; top performers reach 8 to 12%.
%
Most replies are declines and opt-outs. Across 2M+ emails only about 14% of replies were positive; strong campaigns reach 50%.
%
Interest that survives to a meeting actually happening.
$
Optional. Leave at zero to hide the revenue lines.
%
Your own historical close rate beats any benchmark.
Two to three weeks is standard. Zero sends during this window.
$0 Month one
Month one
One-time setup (domains)$0
Tools, first month$0
Steady state, month two onward
Inboxes$0
Sequencer$0
Sourcing$0
Verification$0
Enrichment$0
Automation$0
Monthly from month two$0
Multi-year
Full first year$0
Full second year$0

Cost per contact, and per meeting

Contacts reached per month0
Emails sent per month0
Cost per contact reached$0
Down the funnel
Replies per month0
Positive responses per month0
Meetings held per month0
Stack cost per meeting$0
Pipeline created per month$0
Closed won revenue per month$0
Return on stack spend0x