Prospect List Size Calculator
Backs into the right TAM-source list size from quota, win rate, and meeting-to-opp rate. Stops the 'we need 10,000 accounts' premature-scale impulse.
You ran the numbers. Now see your real ones.
A calculator works from the figures you type in. Outsolvi measures them on the email you actually send, and grades every open so Apple Mail pre-fetches and security scanners don't inflate the count. Outlook and Gmail, from $7/user/mo billed yearly, 14-day free trial.
See it on your own inboxQuota ÷ ACV = deals needed; deals ÷ win rate = opps needed; opps ÷ meeting-to-opp = meetings needed; meetings ÷ meeting-per-100-accounts = accounts needed.
Quarterly territory planning. Before a list-build engagement with a research firm. Reality-check on aggressive board-set list-size targets.
FAQ
How does it get from my quota to a list size?+
It chains four divisions. Quota divided by ACV gives deals, deals divided by win rate gives opps, opps divided by your meeting-to-opp rate gives meetings, and meetings divided by your meetings-per-100-accounts rate gives accounts to source.
Does it tell me which accounts to target?+
No. It only does the math on the five numbers you type in. It has no company database and no list of accounts, so sourcing the names is still your job or your data provider's.
What if I don't know my meetings-per-100-accounts rate?+
Pull it from last quarter: meetings booked divided by accounts actually touched, times 100. If you have no history, 3 per 100 is a common cold-outbound starting point, and you should replace it with your real number as soon as you have one.
Keep going
Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.