← Free tools
How many customers does your MRR target need?
Divide your target MRR by your monthly price and round up — that's the number of paying customers you must win and keep every month. At $9/month, a $10K target means 1,112 customers; at $99/month it's 102. This one division kills more solo ideas than any competitor does: low-ticket pricing quietly demands consumer-scale distribution.
You need 205 paying customers at $49/month to reach $10,000 MRR.
How to read the number
- Under ~150 customers — reachable with content + communities for a niche B2B tool. This is the solo sweet spot.
- 150–1,000 — you need a repeatable acquisition channel, not just launches. Most solo founders underestimate this tier.
- 1,000+ — consumer-scale distribution at a solo budget. Raise the price or change the buyer; volume won't save a $5/month product.
Churn makes it worse: at 5% monthly churn, holding 200 customers means replacing ~10 every month before you grow at all.
Pricing power is one of seven categories
The full WhittleOS check scores your idea on pain evidence, distribution fit, economics, support load, platform risk, cash-flow sustainability and founder fit — and tells you to stop when the math doesn't work. See a real report.