Platform numbers are vanity. Bank account numbers are sanity. Let's bridge the gap.
Ad platforms like Meta and Google report conversions based on their own attribution models, which typically over-report revenue by 20-40%. This calculator compares platform-reported ROAS against your actual bank deposits to show the real return on your ad spend.
Enter your platform-reported numbers alongside your actual revenue, refund rate, and processing fees. The calculator reveals your True ROAS — the number that actually matters for profitability decisions.
Built by Lucas Andersen, former institutional energy trader. Your data never leaves your browser.