Ads & Marketing

Marketing Calculators

Free calculators for ad spend, ROAS, CPC, CPM, CTR, leads, acquisitions, conversions and funnel revenue.

Use marketing metrics as a connected system

Marketing calculators work best together because each metric describes a different part of the funnel. CPC explains traffic cost. Conversion rate explains how often traffic completes an action. CPA explains outcome cost. ROAS compares attributed revenue with ad spend. Use the same data window and the same definitions so the metrics can be compared without mixing unlike numbers.

  • Keep spend, traffic, conversions and revenue in the same reporting window.
  • Define what counts as a conversion or acquisition before calculating CPA or conversion rate.
  • Compare revenue metrics with margin and cost before assuming a campaign is profitable.

Read more: practical calculator guide

Editorial review: August 29, 2026

Use the calculators together

One metric rarely tells the whole story. CPC tells you what traffic costs. CTR helps diagnose whether people click. Conversion rate tells you what happens after the click. CPA shows what each customer costs. ROAS connects ad spend to revenue. The funnel calculator lets you model the full chain.

Start with your own data

When you have historical campaign data, use it. Scenario tools are most useful when your own CPC, conversion rate, close rate and average sale are entered instead of generic assumptions.