Conversion Rate to Revenue Calculator
What a CRO budget should be measured against.
Revenue gain
$13,920
$6,125 of contribution
$73,498 a year from a 0.50-point improvement, with no additional traffic cost. That figure is what a CRO budget should be judged against.
How the Conversion Rate to Revenue Calculator works
Translating a conversion target into annual contribution is what makes a CRO business case concrete. The work costs a fixed amount and the improvement keeps producing, which is the opposite shape from advertising and rarely presented that way.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How do I build a CRO business case?
Take the target conversion improvement, multiply through traffic and order value to get annual contribution, and compare against the cost of the work. The comparison is usually not close.
Why does CRO get under-funded?
Because point improvements sound small and traffic increases sound large. A 0.5-point conversion gain and a 20% traffic increase produce similar revenue, but only one of them costs money every month.
What improvement is realistic?
Mature sites gain a few percent relative per test with a good hit rate; neglected sites can gain far more from basic fixes. Assuming a 30% uplift from a redesign is optimism, not planning.
Does the gain persist?
Structural fixes do — guest checkout keeps working. Novelty effects do not, which is why re-testing a winner some months later is worth the traffic.