Find how many months a customer takes to repay their acquisition cost, from monthly revenue, margin and running costs.
Enter CAC, monthly revenue and gross margin.
Runs in your browser; nothing you enter leaves this page.
Each month a customer contributes their revenue times your margin, less any monthly cost to serve them. The payback period is the acquisition cost divided by that contribution.
months = CAC ÷ (monthly revenue × margin − monthly cost)
If the monthly contribution is zero or below, the cost is never recovered and the tool says so instead of showing a number.
CTR CalculatorWork out click-through rate from impressions and clicks, and compare it with the usual rate for the channel.
Marketing ROI CalculatorTurn ad spend, revenue and cost of goods into profit, ROI, ROAS, margin and break-even revenue.
Bounce Rate CalculatorFind the share of sessions that bounced from your session and bounce counts, with the share that stayed.
A/B Test Sample Size CalculatorEstimate how many visitors each variant needs to detect a lift in conversion rate, and how many days that takes.
