Break-even CPC Calculator
Highest affordable CPC when gross profit per order meets your on-site conversion to purchase.
Open calculator →Goal completions divided by landing visits for the slice you counted.
Use when you tweak copy, hero, or forms on a tracked URL paid traffic hits. Exclude employees and obvious bots before you trust lifts.
Conversion is only as honest as visitor and event definitions. One pixel change can reset comparisons.
Results are simplified estimates for educational purposes only and should not be treated as financial, accounting, legal, or tax advice. See our disclaimer for details.
Conversions ÷ visitors × 100 for percent. Visitor definition must equal your analytics pixel or server rule.
Using the default example values from the JSON seed for this tool:
Result: 1.50% (Conversion rate)
This is the percentage of visitors who complete your defined goal on this page.
Match the population you count as “visitors” with the tool that defines conversions.
Compare pages only when traffic intent and device mix are alike.
Funnel conversion and traffic-quality checks follow when one page is “fixed” but sales lag.
Highest affordable CPC when gross profit per order meets your on-site conversion to purchase.
Open calculator →Sales + marketing spend in a slice ÷ newly acquired customers counted the same window.
Open calculator →End-to-end conversion from first funnel step population to completing customers.
Open calculator →Disclosure: Some links on this page may be affiliate links. If you sign up or make a purchase through these links, FounderCalc may earn a commission at no extra cost to you. We only recommend tools that are relevant to the calculator topic.