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Waitlist Growth Calculator

Project your launch day user count

A strong pre-launch waitlist is the best predictor of a successful launch. Model your weekly signups, referral viral loops, and conversion rate to see exactly how many active users you'll have on launch day.

From social, ads, or word-of-mouth

% of waitlist who invite at least 1 friend

%

% who sign up when you launch

%

At launch

360 waitlist

→ ~72 active users on launch day

Without referrals

340

Referral lift

+20 users

WeekNew signupsTotal waitlist
Week 1+31131
Week 2+31162
Week 3+32194
Week 4+32226
Week 5+33259
Week 6+33292
Week 7+34326
Week 8+34360

Referral virality

The best waitlists use referral mechanics — "skip the line by inviting 3 friends." This turns your waitlist into a growth loop. Referral rates of 15–25% are achievable with good incentives.

Waitlist conversion rate

Typical waitlist-to-active-user conversion is 15–30%. Make your launch email personal, create urgency, and launch in batches (first 100, then 500, etc.) to maintain engagement.

Where to collect signups

A landing page with a single email field + value proposition converts 15–40% of visitors. Launch it before you build anything — validation before a line of code.

Launch timing

Tuesday–Thursday 9–11am EST is peak for product launches. ProductHunt launches do best on Tuesdays. Pre-schedule your emails to hit inboxes when people are at their desks.

Ready for the next level?

You've got the numbers — now ship the features that move them. We help founders scale their app or SaaS with new features, performance, and growth experiments. No bloated retainers, just fast execution.

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