google-ads-math

Compute CPA, ROAS, CTR, CPC, and CVR from advertising inputs.

1|2|Updated May 21, 2026
One-click install
npx skills add https://github.com/itallstartedwithaidea/claude-googleadsagent --skill google-ads-math
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: google-ads-math
Source: https://github.com/itallstartedwithaidea/claude-googleadsagent/tree/main/skills/google-ads-math
Command: npx skills add https://github.com/itallstartedwithaidea/claude-googleadsagent --skill google-ads-math

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It solves the problem of turning Google Ads performance and budget inputs into clear, decision-ready numbers like CPA, ROAS, conversion forecasts, and impression-share opportunity.

Core Features & Use Cases

  • PPC performance math: Computes CPA, ROAS, CTR, CPC, and CVR from user-provided totals.
  • Budget and conversion projections: Projects monthly spend/conversions and CPA from daily assumptions and forecast days.
  • Target gap analysis: Calculates revenue or conversion counts required to hit a ROAS or CPA target.

Quick Start

Ask: "Using daily budget $75, avg CPC $1.80, and conversion rate 3.5%, what are my projected monthly conversions, monthly spend, and monthly CPA?"

Frequently Asked Questions about google-ads-math

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate CPA and ROAS from my Google Ads spend and revenue data?

To calculate CPA and ROAS, you input your total spend, clicks, conversions, impressions, and revenue. The tool applies deterministic formulas to compute these metrics, alongside CTR, CPC, and CVR, returning decision-ready numbers in table outputs.

How do I project monthly conversions and spend from a daily Google Ads budget?

You can project monthly conversions and spend by providing your daily budget, average CPC, and conversion rate. The calculation applies 30.4-day monthly normalization to forecast total spend, expected conversions, and the resulting monthly CPA.

Can I analyze the gap between my current ROAS and my target ROAS?

Yes, you can perform target gap analysis by inputting your current metrics. The calculation determines the exact revenue or conversion counts required to hit your specified target ROAS or CPA, showing the precise gap you need to close.

How do I estimate impression share opportunity for my PPC campaigns?

You estimate impression share opportunity by inputting your current impressions and related campaign data. The tool calculates your current impression share and quantifies the potential opportunity for increasing visibility within your advertising planning workflow.

What inputs do I need to generate conversion forecasts and budget projections?

You need to provide deterministic inputs including daily budget assumptions, average CPC, conversion rate, and the number of forecast days. The tool uses these inputs to apply rounding rules and basic input sanity flagging for accurate projections.