Calculator Inputs
Fill what you know. Leave optional fields empty when unavailable.
Example Data Table
A small sample to illustrate typical inputs and one computed metric.
| Campaign | Sent | Delivered | Opens | Clicks | Leads | Customers | Lead rate |
|---|---|---|---|---|---|---|---|
| Welcome series | 12,000 | 11,640 | 3,960 | 820 | 210 | 24 | 1.80% |
| Product update | 18,500 | 17,945 | 4,850 | 690 | 165 | 12 | 0.92% |
| Webinar invite | 9,800 | 9,506 | 2,990 | 540 | 190 | 9 | 2.00% |
| Re‑engagement | 25,000 | 23,750 | 3,800 | 420 | 95 | 6 | 0.40% |
| Promo launch | 14,200 | 13,916 | 4,520 | 1,020 | 260 | 31 | 1.87% |
Lead rate = Leads ÷ Delivered, expressed as a percentage.
Formula Used
- Delivered = Sent − Bounces
- Open Rate = Opens ÷ Delivered
- Click Rate = Clicks ÷ Delivered
- Click‑to‑Open = Clicks ÷ Opens
- Delivered‑to‑Lead = Leads ÷ Delivered
- Click‑to‑Lead = Leads ÷ Clicks
- Lead‑to‑Customer = Customers ÷ Leads
- Labor Cost = Hours × Hourly Rate
- Total Cost = Platform + Creative + List + Labor
- Attributed Revenue = Revenue × (Attribution %)
- Profit = Attributed Revenue − Total Cost
- ROI = Profit ÷ Total Cost
- Cost per Lead = Total Cost ÷ Leads
- Cost per Customer = Total Cost ÷ Customers
All rates default to 0% when the denominator is zero.
How to Use This Calculator
- Enter your campaign volume, bounces, and engagement counts.
- Add leads, qualified leads, and customer conversions as available.
- Fill in costs, including labor hours and hourly rate.
- Choose an attribution percentage to reflect your reporting model.
- Press Calculate to view results above the form.
- Download CSV or PDF to share metrics with your team.
What the calculator measures
This calculator translates campaign activity into a lead funnel. It starts with sent volume, subtracts bounces to estimate delivered emails, then connects opens and clicks to captured leads, qualified leads, and customers. It converts effort into business terms by calculating cost per lead, cost per customer, attributed revenue, profit, and ROI. The output supports reporting for teams and helps diagnose which stage needs improvement.
Interpreting conversion rates by stage
Open rate reflects list quality and subject relevance because it is calculated from delivered emails. Click rate shows how well the message and offer drive action. Click‑to‑open rate isolates content fit by measuring clicks only among openers. Click‑to‑lead rate highlights landing page and form friction. Lead‑to‑customer and qualified‑to‑customer rates capture sales follow‑up effectiveness. The “biggest drop” insight points to the weakest conversion step.
Cost and revenue attribution controls
Total cost combines platform, creative, list, and labor costs, where labor is hours multiplied by hourly rate. Revenue can be entered directly or estimated from customers multiplied by average revenue per customer. Attribution percentage scales revenue to match your reporting model when email is one of several touches. Profit equals attributed revenue minus total cost, and ROI equals profit divided by total cost, enabling comparisons across campaigns.
Benchmarking and diagnosing drop‑offs
Many programs aim for bounce rates below 2%, unsubscribe rates below 0.5%, and complaint rates below 0.1% to protect deliverability. Open rates often land between 15% and 35%, while click rates may range from 1% to 5% depending on offer and audience. If opens lag, focus on list hygiene and targeting. If click‑to‑open is weak, refine the value proposition. If click‑to‑lead is low, shorten forms and improve page speed. If lead‑to‑customer is low, tighten qualification and follow‑up timing.
Using results to plan next sends
Use the calculator for scenario planning: increasing delivered volume or improving a single stage rate compounds downstream leads and customers. Track cost per lead and cost per customer against your allowable acquisition targets. Monitor revenue per delivered email to prioritize segments, offers, and cadence. Export CSV or PDF after each send to build a trend line, compare variants, and document what changed between experiments.
FAQs
Should I enter bounce count or bounce rate?
Enter bounce count when you have it. If it is empty, the calculator estimates bounces from bounce rate and sent volume. Delivered emails are always sent minus bounces.
What if open tracking is unreliable?
Use opens as a directional signal, not an absolute truth. Privacy features can reduce recorded opens, so consider clicks and downstream leads as stronger indicators when comparing campaigns.
How is ROI handled when total cost is zero?
If total cost is zero, ROI is reported as 0% to avoid dividing by zero. Add realistic platform, creative, list, and labor costs for a meaningful ROI.
How do I choose an attribution percentage?
Pick a percentage that matches your internal reporting rules. For example, use 100% for email‑only offers, or a smaller share when other channels also influence the sale.
Can I compare campaigns with different list sizes?
Yes. Focus on rates and unit economics such as delivered‑to‑lead, cost per lead, and cost per customer. Those normalize performance even when volumes differ.
Which metric best indicates landing page friction?
Click‑to‑lead rate is the clearest indicator. If clicks are healthy but leads are low, reduce form fields, align the page with email copy, and improve load time.