📣 Marketing ROI Calculator

This marketing ROI calculator evaluates the profitability of a marketing campaign or channel, going beyond simple ROI to include a built-in ROAS calculator, cost per acquisition (CPA) tracking, and customer lifetime value (LTV) — with a side-by-side compare-channels mode for weighing Google Ads, Meta Ads, email, and other channels up to four at once. It's built for marketers and business owners deciding where to allocate ad budget, using last-click attribution and multi-currency support (USD, INR, GBP, EUR, AED, and more) for global marketers working across markets.

How It Works

For a single campaign, you enter ad spend, other costs, revenue generated, COGS, customers acquired, and details about repeat purchases and order value. Marketing ROI is calculated as net profit (revenue − COGS − total marketing investment) divided by total investment; ROAS (Return on Ad Spend) is simply revenue divided by ad spend, ignoring other costs, and is best read as a ratio like 4:1 rather than a percentage; CPA (cost per acquisition) is total investment divided by customers acquired; and LTV (customer lifetime value) is estimated as average order value × purchases per year × customer lifespan, then adjusted by gross margin to show profitable lifetime value rather than raw revenue. The Compare Channels tab runs the same core math across multiple campaigns — Google Ads, Meta Ads, email, and beyond — side by side and highlights the best performer in each column for ROI, ROAS, CPA, and LTV:CAC.

Why It Matters

ROAS alone can be dangerously misleading — a 4x ROAS can still mean a break-even or loss-making campaign if margins are thin, since ROAS ignores COGS and other costs entirely, which is exactly where a proper ROI calculation and CPA figure fill the gap. Looking at marketing ROI, ROAS, CPA, and LTV together shows not just whether a channel generates revenue, but whether it generates sustainable profit, and whether the cost of acquiring each customer is justified by what that customer's lifetime value will be worth over time — insight that becomes even clearer once you compare channels side by side across currencies like USD, INR, GBP, EUR, or AED.

Tips for Accurate Results

• Always check the LTV:CAC ratio alongside ROI — a ratio of 3:1 or higher is generally considered healthy and sustainable, while anything below 1:1 means you're losing money on every customer acquired.
• Remember this calculator uses last-click attribution; if your funnel involves multiple touchpoints (SEO, retargeting, email), per-channel ROI and ROAS may look different under first-click or data-driven attribution models.
• When comparing channels, look beyond the headline ROI or ROAS number — a channel with a lower ROI but much lower CPA may still be the better long-term bet if it's acquiring higher-LTV customers.
• Use the Compare Channels view to line up Google Ads, Meta Ads, email, and other campaigns side by side in the same currency, since mixing currencies without converting first will distort the ROI, ROAS, CPA, and LTV comparison.