Measure the true return on your marketing investment. Calculate ROI, ROAS, CPA, and LTV ratios to identify your most profitable acquisition channels.
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Enter your campaign details above to see ROI, ROAS, CPA, and LTV.
A marketing ROI calculator turns raw campaign numbers — ad spend, revenue, customers acquired — into the metrics that actually decide whether a channel deserves more budget or less: Marketing ROI, ROAS (return on ad spend), CPA, and customer lifetime value. NeftCal's version is built for in-house marketers, agencies reporting to clients, and e-commerce teams deciding where to put next month's ad budget, and it runs a full Compare Channels mode alongside the single-campaign calculator so you can line up Google Ads, Meta Ads, email, and other channels — up to four at once — in one table.
Rather than looking at a single headline percentage, this tool reports Marketing ROI, ROAS, net profit, CPA, Simple LTV, and margin-adjusted LTV together, then converts the last two into an LTV:CAC ratio with a plain-language verdict. That combination matters because ROAS on its own can look impressive while margins are actually thin, and ROI on its own doesn't tell you whether the customers a campaign brought in were cheap or expensive relative to what they're worth over time.
In the Single Campaign tab you enter ad spend, other costs, and campaign duration on the investment side, then revenue generated and COGS on the return side, plus customers acquired, repeat purchase rate, average purchase value, customer lifespan, purchases per year, and gross margin. Marketing ROI comes out as net profit — revenue minus COGS minus total investment — divided by total investment; ROAS is revenue divided by ad spend alone; CPA is total investment divided by customers acquired; and LTV is estimated from average purchase value, purchase frequency, and lifespan, then adjusted by gross margin for a profit-based figure. The Compare Channels tab runs the same underlying math across 2 to 4 campaigns side by side and flags the best performer in every column.
This tool suits paid media managers deciding how to split a budget across platforms, e-commerce marketers checking whether a campaign is actually profitable once product cost is factored in, agencies preparing a performance report for a client, and founders who need a quick sanity check before committing more spend to a channel that "feels" like it's working.
ROAS alone can be misleading — a 4:1 ROAS can still mean a break-even or loss-making campaign once cost of goods sold and other costs are subtracted, which is exactly the gap a proper ROI figure and CPA calculation close. Reading marketing ROI, ROAS, CPA, and LTV together shows not just whether a channel produces revenue, but whether it produces sustainable profit, and whether what you paid to acquire each customer is justified by what that customer is worth over their full lifetime — a picture that gets much clearer once you compare channels side by side.
Marketing ROI, ROAS, CPA, and LTV each answer a different question about the same campaign
Marketing ROI measures how much profit a campaign generated relative to what it cost, after subtracting both the cost of goods sold and the marketing investment itself. It's the most complete single number for judging whether a campaign was genuinely profitable, not just whether it generated revenue.
ROAS ignores COGS and other costs entirely — it only compares revenue to ad spend. That makes it useful for media buyers optimizing bids inside an ad platform, but risky as a standalone profitability signal, since a strong ROAS can still coexist with a weak or negative ROI on thin-margin products.
CPA tells you what a customer cost to acquire; LTV tells you what that customer is worth over time. Neither number means much alone — a low CPA is only good if the customers it buys are worth keeping, and a high LTV only justifies a high CPA up to a point.
From campaign inputs to a full ROI, ROAS, CPA, and LTV breakdown in under a minute
Choose USD, INR, GBP, EUR, AED, SGD, AUD, or CAD from the currency selector — it updates every input prefix and result on the page.
Input ad spend, any other campaign costs, and the campaign duration in days. Ad spend plus other costs makes up your Total Investment.
Input the revenue the campaign generated and your cost of goods sold or cost of service — together these determine gross profit before marketing costs are subtracted.
Add new customers acquired, repeat purchase rate, average purchase value, customer lifespan, purchases per year, and gross margin so the calculator can project LTV.
See Marketing ROI, ROAS, net profit, CPA, Simple and margin-adjusted LTV, an LTV:CAC verdict, and a financial breakdown table and chart.
Add 2 to 4 channels side by side — Google Ads, Meta Ads, email, or any others — to see which one wins on ROI, ROAS, net profit, CPA, and LTV:CAC.
A realistic single-campaign calculation, using the calculator's own default figures
Suppose you ran a campaign with $5,000 in ad spend and $500 in other costs, generating $18,000 in revenue against $7,000 in COGS. The campaign acquired 120 new customers, with an average purchase value of $150, 4 purchases per year, a 3-year expected lifespan, and a 55% gross margin.
Explanation: This campaign doubled its money — every dollar of the $5,500 invested returned a dollar of profit on top, for a 100% ROI. The 3.60x ROAS looks strong on its own, but the ROI figure confirms it's backed by real profitability once the $7,000 COGS is accounted for, not just top-line revenue. At $45.83 per customer, CPA is tiny next to the $990 margin-adjusted LTV those customers are projected to generate, producing a 21.6:1 LTV:CAC ratio — well into "Excellent" territory (5:1 or higher) — which means this campaign could likely absorb a meaningfully higher CPA and still be profitable.
Break-even ROAS check: at a 55% gross margin, break-even ROAS is 1 ÷ 0.55 ≈ 1.82x — the minimum ROAS needed just to cover COGS. The actual 3.60x ROAS clears that floor by a wide margin, which is why the campaign shows up as strongly profitable rather than merely revenue-positive.
What your ROAS and LTV:CAC numbers actually tell you
Once you calculate, read ROAS and LTV:CAC together with your ROI percentage rather than in isolation. These are general reference bands, not a formal industry standard, and the right target depends heavily on your margin structure.
| ROAS | General Read | Typical Context |
|---|---|---|
| Under 2:1 | Concerning at typical margins | Likely unprofitable once COGS is subtracted unless margins are very high |
| 2:1 – 4:1 | Solid, workable range | Common for e-commerce and retail campaigns with 30–50% margins |
| Over 4:1 | Strong performance | Comfortable room to scale budget or absorb rising acquisition costs |
| LTV:CAC Ratio | Verdict | What It Suggests |
|---|---|---|
| Under 1:1 | Poor | Losing money on every customer acquired — pause and rework the campaign |
| 1:1 – 3:1 | Marginal | Tighten spend, improve retention, or raise average order value |
| 3:1 – 5:1 | Good | Sustainable, healthy acquisition economics |
| 5:1 or higher | Excellent | Very efficient — likely room to invest more aggressively in this channel |
For ROI: a positive percentage means the campaign was profitable after COGS and marketing costs; a negative percentage means it lost money outright. Because ROI already nets out COGS, it's the more reliable single figure when a ROAS and an ROI point in different directions.
For LTV:CAC: this ratio matters more than a single-purchase ROI when your product or service relies on repeat business, since it captures whether the cost of acquisition is justified by everything a customer is projected to spend over their full relationship with you, not just their first order.
Risk considerations: this model assumes last-click attribution, constant purchase behavior over the LTV window, and accurate COGS attribution to the campaign. It doesn't capture assisted conversions, brand-awareness value, or seasonality. Treat the result as a planning estimate to stress-test against your own account data, not a guarantee.
This calculator provides estimates for educational and informational purposes only. Results may vary depending on business conditions, accounting methods, taxes, market trends, and other factors. It should not be considered financial, legal, tax, accounting, or investment advice. Consult qualified professionals before making business decisions.
Where this ROI and ROAS calculator earns its keep
Build a defensible ROI and ROAS summary to show a client exactly how their budget performed.
Decide which channel deserves more spend next quarter based on ROI, not just raw revenue.
Check whether a paid campaign is actually profitable once COGS and fulfillment costs are subtracted.
Use Compare Channels to see which of up to 4 campaigns wins on ROI, ROAS, CPA, and LTV:CAC.
Use margin-adjusted LTV to work out how much you can afford to pay per new customer.
Spot campaigns where impressive ad efficiency is hiding a thin or negative true profit margin.
Weigh CPA against LTV rather than a single transaction when retention drives most of the value.
Evaluate campaigns in USD, INR, GBP, EUR, AED, and more without manual conversion.
Translate campaign performance into a bottom-line profitability figure non-marketers understand.
Run the actual spend and revenue figures after a campaign ends to confirm it hit its profitability target.
Sanity-check whether a newly tested channel's early numbers justify a larger budget commitment.
Put a defensible ROI projection behind a proposed campaign for a prospective client.
What this marketing ROI calculator does well, and where it can't replace live campaign data
Three related but distinct return metrics — and when each one applies
| Metric | Formula | Accounts For COGS? | Best Used When |
|---|---|---|---|
| Marketing ROI | (Revenue − COGS − Investment) ÷ Investment × 100 | Yes | Judging true campaign profitability, not just ad efficiency |
| ROAS | Revenue ÷ Ad Spend | No | Optimizing ad platform bids and comparing raw ad efficiency |
| Business ROI | (Final Value − Initial Investment) ÷ Initial Investment × 100 | N/A — general investment | Evaluating any investment, not specifically a marketing campaign |
Business ROI is a general-purpose formula for any investment — initial cost, final value, and holding period. Use the Business ROI Calculator when you need an annualized return on a broader investment rather than a marketing-specific breakdown with ROAS, CPA, and LTV.
Common questions about marketing ROI and ROAS calculations
Official guidance to complement this calculator — not a substitute for professional advice
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