Free Tool · The Ghostwriter Sydney

Email Course Calculator
What could your list be earning you?

Answer five quick questions. We'll show you exactly what you're leaving on the table — based on what we've seen work for real clients.

What's an email course?
Five emails.
One paying client.

It's a short series of emails — five, delivered one per day — that teaches your audience something genuinely useful. They sign up, and each day a new lesson lands in their inbox.

Five is the sweet spot. Enough time to build real trust. Short enough that people actually finish it. Three feels rushed. Seven starts to feel like homework. Five is the number where someone reaches the last email still paying attention — and still thinking about you.

It works because it gives people a specific reason to hand over their email address. Not "subscribe to my newsletter" — that's vague. "Learn how to solve a specific problem in five days" — that's something worth signing up for.

By the time someone has read all five emails, they trust you. They've spent five days learning from you. So when you mention your offer in the final email, it doesn't feel like a pitch. It feels like the obvious next step.

Most people who sell their expertise rely on social media or a basic newsletter. An email course does something neither of those can: it builds a relationship without you having to chase, with people who already told you they're interested.

Your numbers — takes about 30 seconds
? Your email list is everyone who's given you their email address — through your website, a sign-up form, a freebie, or anywhere else. If you use Mailchimp, Kit, or similar, check your subscriber count there. Don't have a list yet? That's completely fine — put 0.
Don't have one yet? Put 0 — the calculator works either way.
? Your primary offer — the thing you'd love more clients to buy. Coaching packages, courses, consulting, therapy sessions, whatever you sell. If you have several, use the one you sell most often.
Use the price you actually charge. Please enter what you charge — even a rough estimate works.
? This helps us estimate how well your current approach converts interest into paying clients. There's no wrong answer — most people pick the first option, and that's exactly why this calculator exists.
? How often you show up in their inbox affects how warm your audience is. People who hear from you weekly are more likely to buy than people who forgot they signed up. Be honest — "rarely" and "never" are the most common answers we see.
Please select how often you email your list — "never" is a valid answer.
? This is the percentage of subscribers who open your emails. You'll find it in your email tool — Mailchimp, Kit, etc. — labelled "open rate." If you've never looked or don't send emails, leave it at 22%. That's about average for most industries.
22%
Not sure? Leave it here — 22% is typical.

Here's what we found

Today
/month from email
With an email course
/month at 6 months
After 6 months of your email course running — bringing in new subscribers and turning them into clients.
The gap between those two numbers
every month you don't have one
That's not a number we invented. It's what your own inputs show when you add a system that turns subscribers into paying clients.

What the next 12 months could look like

Your list could grow to ? An email course gives people a specific reason to sign up — "learn how to do X in 5 days" is far more compelling than "subscribe to my updates." That's why lists grow much faster with one.
People who open each email ? Email courses get opened at much higher rates than newsletters — because people signed up for something specific and they're expecting each lesson. Course open rates typically run 42–55%, roughly double a standard newsletter.
Estimated yearly revenue ? This combines projected list growth, higher open rates from the course format, and a conservative estimate of how many readers become paying clients. We show a range because results depend on your niche, your offer, and how well you promote the course.
Cost to build the course ? Ghostwritten by Amit Karmakar — that's the full five-email series, strategy, positioning, and a done-for-you sequence ready to publish. One flat rate. Delivered in about four weeks. $5,000 · once
How did we calculate this? +

We start with the numbers you gave us — your list size, how often you email, and what you charge. From that, we estimate what your email list generates today.

Then we model what changes when you add a 5-day email course. Three things shift: your list grows faster (because people have a real reason to sign up), more people open your emails (because a course is something they asked for), and more readers become paying clients (because five days of useful teaching builds genuine trust).

The projections are grounded in real client results. We've used conservative estimates throughout — your actual results depend on your niche, your audience, and how actively you promote the course.

These aren't guarantees. They're informed estimates based on what we've actually seen work.

Let's talk about what this could look like for you
Free 20-minute call · No pitch · Just your numbers