How many contacts are in your database?

Do you know roughly how many of your contacts are bouncing?

How many years since your database was last cleaned?

years

HubSpot research shows databases decay ~22.5% per year, which we use to estimate your bad contacts.

What % of your contacts become members or conference attendees?

Across your full database, the share who pay for membership or attend events in a typical year.

Typical revenue per member or conference attendee?

Annual dues, average ticket price, or a blended figure if you have both. If you're a trade association, chamber, or other nonprofit with corporate membership, estimate what a typical member pays, not your biggest or smallest, since outlier dues can skew the math.

Your Estimated Recovery

Estimated bad contacts

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Potential* annual revenue recovered

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*"Potential" because we won't find everyone, and not everyone we recover will convert. Some have retired, left the industry, or moved into roles where your organization isn't a fit. This shows your upper-bound opportunity.

How we calculate your data decay losses

The calculator uses verified industry baselines to estimate the membership and event revenue hiding in your outdated contacts:

The 22.5% decay rate. HubSpot research shows contact databases go bad by about 22.5% a year. We apply that to your database size, or use your own bounce count, to estimate how many contacts are no longer reachable.
Your conversion rate. We use the share of your contacts who become paying members or event attendees in a typical year, so the estimate reflects your organization rather than an industry average.
Revenue per member. We multiply the lost-but-recoverable contacts by your typical revenue per member or attendee to show the annual revenue you could recover by finding them again.

The result is your upper-bound opportunity on revenue alone. Bad data costs you in two more ways this number doesn't count:

Staff time. The hours your team spends chasing bounces, researching where people went, and hand-correcting records one at a time.
Wasted outreach. Renewal notices, invoices, and campaigns sent to dead emails and old mailing addresses, along with the print and postage behind them.

Both land on top of the recovery figure above.

How much revenue is your dirty database costing you?

How we calculate your data decay losses