Business Revenue Calculator: Estimate Leads and Sales You May Be Losing

Founders often ask whether a new website is worth it. A simple model — monthly visitors × conversion rate × average sale value — makes the upside tangible before you spend on design or ads.

The calculator does not predict guaranteed income. It shows what better conversion on the same traffic could mean, so you can compare that to project cost.

Monthly visitors: use Google Analytics, Search Console clicks, or a conservative estimate from foot traffic and referrals.

Current conversion %: form submits, calls, bookings, or purchases divided by sessions — even a rough guess is useful.

Target conversion %: what you aim for after faster pages, clearer CTAs, and AI chat after hours — often 0.5–1.5 points above today for service sites.

Average sale value: one completed job, appointment, or order — not lifetime value unless you intentionally model LTV.

Our tool includes quick presets for local services, online shops, and dental or clinic sites so you are not starting from zero.

Adjust the preset to match your market — a plumber’s average job differs from a clinic consultation or an e-commerce order.

The calculator shows revenue upside. A free website audit shows what is actually broken — slow mobile load, weak meta tags, missing chatbot, or CTAs buried below the fold.

Run both: estimate the prize with the calculator, then prioritize fixes with the audit report.