Outbound Meeting Math Calculator
Start from a revenue target and work backwards to the deals, meetings, replies, daily email volume, mailboxes and sending domains it takes to hit it.
Inputs
Conservative assumptions
1% reply rate, 5% positive, 40% book a meeting, 22 sending days per month, 300 emails per mailbox per day, 3 mailboxes per domain.
Results
To add $100,000 in new revenue each month at $10,000 per deal, you need about 50 meetings a month. At a 1% reply rate that takes roughly 11,364 emails a day, which needs 38 mailboxes across 13 sending domains.
Why use this calculator
Targets become inputs
Turn a revenue goal into the daily email volume and infrastructure needed to reach it.
Plan infrastructure early
See how many mailboxes and domains you need before warm-up, so launch is not delayed.
Spot unrealistic goals
If the required volume looks absurd, you learn it before you commit, not after.
How to use this tool
- 1
Enter your monthly revenue target.
- 2
Enter your average deal size and close rate from meetings.
- 3
Read the meetings, replies and emails per day you need.
- 4
Check the mailboxes and domains required, then email the results to yourself.
Use cases
Quarterly planning
Translate a pipeline goal into weekly outbound activity.
Sizing a team or agency brief
Give a vendor the volume and infrastructure you expect.
Capacity checks
Find out whether current mailboxes can support your target.
Scenario testing
Change deal size or close rate to see what moves the plan most.
Frequently asked questions
How are mailboxes and domains calculated?+
The model assumes 300 emails per mailbox per day and 3 mailboxes per domain, then rounds up.
What funnel rates does it assume?+
1% reply rate, 5% positive replies and 40% of positive replies booking a meeting, over 22 sending days.
Is 300 emails per mailbox per day safe?+
Treat it as an upper planning figure. Many teams send less per mailbox to protect deliverability.
Can I change the assumptions?+
The funnel assumptions are fixed so results stay comparable. Use the output as a starting point for your own plan.
Want these numbers turned into pipeline?
Book a free 30 minute call and we will map your quickest wins across cold outbound, Google Ads and LinkedIn Ads.