Cold email break-even calculator: the reply rate you need
In short: Enter the contacts you email, your monthly costs, deal value, close rate and meeting rate, and the bounce rate with and without checking the list. The calculator shows the meetings, replies and reply rate needed to pay for the month. Limit: Every rate and cost is your input; the result is only as good as they are.
Break-even is the point where won deals pay for the month. Divide your monthly cost by the value of a meeting (deal value times close rate) to get the meetings needed, then work back through your meeting rate to replies, and divide by the emails that are delivered. The tool does it twice: once as the list is, once after checking it.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
The numbers below are examples. Replace them with your own costs, deal value and rates.
Tools, domains, mailboxes, lists and your time, without email checking.
- Meetings to break even
- 7
- Value of one meeting
- $600.00
- Reply rate needed, list as is
- 0.52%
- Reply rate needed, list checked
- 0.48%
Send as the list is
- Monthly cost
- $4,000.00
- Delivered
- 4,600
- Deals needed
- 1.33
- Meetings needed
- 7
- Replies needed
- 24
- Reply rate needed
- 0.52%
Check the list first
- Monthly cost
- $4,025.00
- Delivered
- 4,950
- Deals needed
- 1.34
- Meetings needed
- 7
- Replies needed
- 24
- Reply rate needed
- 0.48%
| Scenario | Monthly cost | Delivered | Deals needed | Meetings needed | Replies needed | Reply rate needed |
|---|---|---|---|---|---|---|
| Send as the list is | $4,000.00 | 4,600 | 1.33 | 7 | 24 | 0.52% |
| Check the list first | $4,025.00 | 4,950 | 1.34 | 7 | 24 | 0.48% |
Checking the list first lowers the reply rate you need by 0.04 points, using your own bounce rates.
Formula: meetings = monthly cost divided by (deal value x close rate), rounded up; replies = meetings divided by the meeting rate, rounded up; reply rate = replies divided by delivered emails (contacts x (1 - bounce rate)). Every number is yours.
Sample result
In the example, 7 meetings break even: a 0.52% reply rate as is, or 0.48% after checking the list.
- Meetings to break even
- 7
- Reply rate, as is
- 0.52%
- Reply rate, checked
- 0.48%
What this means for you
Fewer bounces leave more delivered emails to produce the replies, at the cost of the check.
- Your costs and rates
- Meetings and replies
- With and without checking
- Formula shown
- Break-even
- Reply rate
- Calculator
By SimpleVerifier Team · Last updated · Runs in your browser; nothing you paste is sent to us
Get a real bounce rate for the right-hand scenario.
- Export the list you plan to send, one address per row.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I calculate the break-even reply rate for cold email?
- Type the contacts you email in a month and everything the campaign costs, without email checking.
- Type the value of a won deal, the share of meetings that close and the share of replies that become meetings.
- Type the bounce rate you expect if you send as is, and the rate you expect after checking the list.
- Add what checking costs this month.
- Read the meetings and the reply rate needed in both scenarios.
Example
- You enter
- Example: 5,000 contacts, $4,000 monthly cost, $25 to check the list, $3,000 deals, 20% of meetings close, 30% of replies become meetings, 8% bounce as is and 1% after checking.
- You get
- A meeting is worth $600, so 7 meetings break even, from 24 replies. Sending as is needs a 0.52% reply rate on 4,600 delivered emails; after checking, 0.48% on 4,950.
- Limits
- Runs in your browser; nothing is uploaded. Every number is typed by you; the values here are examples.
How is break-even worked out?
The value of a meeting is the deal value times the share of meetings that close. The meetings needed are the monthly cost divided by that value, rounded up to a whole meeting. Replies needed are the meetings divided by the share of replies that turn into meetings, also rounded up. The reply rate needed is those replies divided by the emails delivered, which is the contacts you email times one minus the bounce rate.
Why show the list twice?
Bounced emails never reach anyone, so a higher bounce rate leaves fewer delivered emails to produce the replies you need. Checking the list adds a cost but lowers the bounce rate; the second row shows whether that trade moves the reply rate you need. With the example numbers the change is small, because break-even depends mostly on deal value and cost. Bounces also affect sender reputation, which this arithmetic does not price. The cold email bounce cost calculator looks at that side.
Where do the rates come from?
From your own records. Use the reply, meeting and close rates of past campaigns, and the bounce rate from your sequencer. Prefilled values are examples only. If you have no history yet, treat the result as the target to beat rather than a forecast, and compare it with the cold email ROI calculator once you have data.
Who uses this tool, and for what?
- Cold emailers
- Know the reply rate a campaign must beat before spending the month's budget.
- Agencies
- Show a client the meetings needed to cover a retainer.
- Founders
- Check whether an outbound plan can pay for itself at the deal value you sell at.
What can’t this tool tell you?
- Every rate and cost is your input; the result is only as good as they are.
- It treats one month as a closed period, but deals often close in later months.
- It does not price damage to sender reputation from bounces.
- Rates are applied evenly to every contact, which real lists do not follow.
Common questions
- What counts as monthly cost?
- Anything the campaign costs in a month: sending tools, domains, mailboxes, list purchases and the time you value, but not email checking, which has its own field.
- Why are meetings rounded up?
- A fraction of a meeting does not exist, and rounding down would claim break-even too early.
- Is the reply rate a share of sent or delivered emails?
- Delivered. Bounced emails reach nobody, so they are taken out first.
- Does it include repeat revenue?
- No. Deal value is whatever number you type; include lifetime value there if you want it counted.
- Does it forecast my results?
- No. It shows what you would need, not what you will get.
- Is anything uploaded?
- No. The numbers stay in your browser.
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.