Calculators

The arithmetic of media buying, done for you. Every calculator runs in your browser; nothing you type is sent anywhere.

CPM calculator

Cost per thousand impressions from spend and impressions, or spend and impressions from a CPM.

Spend ($)ImpressionsCPM ($)

CPC and CTR calculator

Cost per click and click-through rate from spend, impressions, and clicks.

Spend ($)ImpressionsClicks

CPA and ROAS calculator

Cost per acquisition and return on ad spend from spend, conversions, and revenue.

Spend ($)ConversionsRevenue ($)

Breakeven ROAS calculator

The ROAS at which a sale produces zero contribution margin, from your margin rate.

Contribution margin before marketing (%)

Reach and frequency calculator

Impressions from reach and frequency, or frequency from impressions and reach. Optional budget for a reach-based cost.

Reach (people)Average frequencyImpressionsSpend ($, optional)

CAC to LTV calculator

Customer acquisition cost, lifetime value, ratio, and payback period.

Total acquisition spend ($)New customersAverage order value ($)Gross margin (%)Orders per customer per yearCustomer lifetime (years)

Budget pacing calculator

Whether a campaign is on pace, from budget, flight dates, and spend to date.

Total budget ($)Flight length (days)Days elapsedSpent to date ($)

Lift test sample size calculator

Approximate users needed per group to detect a conversion-rate lift at 95 percent confidence and 80 percent power.

Baseline conversion rate (%)Minimum detectable lift (% relative)

Definitions for every metric here are in the measurement section of the glossary. Typical ranges are on the benchmarks page.