AdMetricFlow calculators use standard advertising formulas. They are intended for quick planning checks, reporting support and budget conversations, not as a replacement for ad platform data, analytics configuration or finance reporting.
The tools rely entirely on the figures you enter. If your spend, revenue, conversion count or attribution window is wrong, the result will be wrong too. Platform-reported numbers can also differ from analytics or finance systems.
These calculators do not judge creative quality, incrementality, customer lifetime value, margin, refund rates, attribution overlap or offline conversions. Use them as a starting point, then compare the result with your own business data.