Find out how many leads and customers your marketing needs to generate to pay for itself—and what happens when your conversion rate improves.
Example figures. Replace them with your own monthly numbers. All amounts in USD.
Complete the highlighted fields to see your estimates.
Use the same period and audience throughout.
Include the marketing costs you want to recover, such as ads, agency fees and creative.
Average revenue from one new customer or sale in the period you are measuring.
Revenue left after direct delivery costs, before marketing. A 50% margin leaves $50 from a $100 sale.
Use visitors attributable to this budget, or a consistent total across your marketing mix.
The share of website visitors who become leads. Example: 20 leads from 1,000 visitors is 2%.
The share of leads that become paying customers. Example: 3 customers from 10 leads is 30%.
$10,000 gross profit after marketing / month
Estimates based on your inputs. This is not total business net profit.
Minimum estimated thresholds to cover marketing spend from gross profit. Each target is rounded up independently using unrounded conversion math. Actual sales can vary.
Forecasts may include fractional customers. Displayed figures are rounded; calculations use full precision. Acquisition cost covers the marketing spend entered, not additional sales costs.
Explore a higher visitor-to-lead conversion rate. Your traffic, budget, sale value, margin and close rate stay exactly the same. This is a scenario, not a promised improvement.
| Monthly estimate | Current | Potential | Change |
|---|---|---|---|
| Conversion rate | 2% | 3% | +1 pp |
| Monthly leads | 20 | 30 | +10 |
| Monthly customers | 6 | 9 | +3 |
| Monthly revenue | $30,000 | $45,000 | +$15,000 |
| Gross profit | $15,000 | $22,500 | +$7,500 |
| Marketing ROI | 200% | 350% | +150 pp |
Additional potential revenue
Revenue is not profit. The estimated additional gross profit is +$7,500 per month. Changes in percentage rates are shown in percentage points (pp).
Copy a summary, share the same scenario or save a PDF through your browser's print dialog. Shared links include your calculator numbers—use figures you are comfortable sharing.
Marketing can generate revenue and still lose money. A useful ROI model connects your budget to leads, customers and the profit left to pay for that budget.
Marketing return on investment compares the return associated with marketing to its cost. This calculator uses gross profit, not revenue, as the starting return. It then subtracts the marketing spend you enter.
A 100% result means the model generates $1 of gross profit after marketing for every $1 spent on marketing. A 0% result means that gross profit covers that spend. A negative result means the modeled gross profit does not cover it.
Enter margin as a percentage; the formula uses its decimal form. For example, 50% becomes 0.50. Include the marketing costs relevant to the scenario, such as media spend, management fees and creative production. Avoid counting a cost both in your margin and in marketing spend.
Break-even is the point where estimated gross profit covers your marketing spend. Gross profit per customer is average sale value multiplied by gross margin. Divide your budget by that amount to find the customer threshold.
Rates use decimal form. The calculator rounds each final target up independently, without rounding the intermediate math. Lead and visitor targets rely on average conversion rates, not guaranteed sales.
At the same traffic level, a higher visitor-to-lead rate creates more potential leads. If lead quality and close rate hold steady, those leads can produce more customers without a larger marketing budget.
The model deliberately holds those assumptions constant. In practice, extra leads may close at a different rate or require more fulfillment capacity. Use the scenario to decide which assumptions to measure. Clear offers, accessible forms and thoughtful website design and development can be part of that work.
A $5,000 sale is not $5,000 available to repay advertising costs. If direct labor, materials or fulfillment leave a 50% gross margin, it contributes $2,500 before marketing. The calculator uses that gross profit to assess the return.
The result is not your business's total net profit. Rent, overhead, financing, taxes, refunds and other costs may still matter. Adjust the inputs consistently with your records and avoid treating estimated customer lifetime revenue as cash received this month.
For Google Ads or paid social, use channel-attributed visitors and leads with the related media, management and creative costs. Compare the same reporting period and account for the time between an inquiry and a sale.
For SEO and organic search, use a time period that reflects the investment and the lag before results develop. A single month may not represent a sustained SEO program. For a combined view, use the combined budget and deduplicated traffic, leads and customers. The calculator models your assumptions; it does not establish attribution or measure incremental lift.
Yes. You can calculate, compare, copy and print results without an account, email address or form submission. Calculations run in your browser.
It is profit-based marketing ROI: estimated gross profit minus marketing spend, divided by marketing spend. Gross profit accounts for direct delivery costs. The result does not subtract other overhead, taxes or financing costs.
Conversion rates produce averages, so a forecast can include fractional customers. Actual sales happen in whole numbers. Break-even customer, lead and visitor targets are rounded up independently; calculations use unrounded values.
Zero marketing spend makes percentage ROI undefined. Zero leads or customers makes the corresponding cost-per-result undefined. With positive spend, zero sale value or gross margin makes break-even unreachable; zero conversion or close rates can also make the relevant traffic or lead target unreachable.
No. It models the inputs you provide. It does not inspect your website, predict traffic, guarantee sales or prove attribution. Use measured results where possible and compare realistic scenarios.
The default approach uses the value of one new customer or sale within the measurement period. If you use lifetime value, align profit, costs and timing to the same customer cohort. Do not present lifetime revenue as monthly cash received.
Only the seven calculator numbers: spend, sale value, margin, visitors, visitor conversion, close rate and scenario conversion. Anyone with the link can see those figures. No contact details are requested by the calculator.
Yes. Copy the iframe code below to display the calculator hosted by DigiKai Marketing. The optional visible attribution can be removed. No publisher script, account or API key is required.
A calculator shows what your inputs imply. DigiKai's AI Growth Audit is the next step when you want us to evaluate your actual marketing, website and opportunities.
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