Email Marketing ROI Calculator (Kenya)

This email marketing ROI calculator turns your campaign cost and the sales it drove into a clear return figure, so you know whether your email effort is paying off.

By Veira Team, Kenya SME toolsPublished June 2026Updated June 2026
Calculator
Result
ROI 2,900% (profit KES 58,000)
Buyers40 of 2,000
RevenueKES 60,000
CostKES 2,000
Return on investment2,900%
Revenue per emailKES 30

ROI = (revenue minus cost) divided by cost. Revenue per email sent is a useful second measure: it tells you what each address on your list is worth, which guides how much to invest in growing and keeping the list clean.

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What your list is worth

Email is one of the cheapest channels to own, because you are not renting access to your customers each time. Measuring ROI tells you whether your campaigns earn their keep, and revenue per email tells you what each subscriber is worth.

Those two numbers guide real decisions: how much to invest in growing the list, how often to send, and which offers to repeat. A list you measure is an asset; one you do not is just a habit.

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Worked examples

A monthly newsletter offer
  • 2,000 recipients, 2% buy at KES 1,500, cost KES 2,000.
  • Revenue KES 60,000; ROI about 2,900%.

Frequently asked questions

How do I calculate email marketing ROI?
Subtract the campaign cost from the revenue it generated, divide by the cost, and multiply by 100. Revenue per email sent is a useful companion measure of what each subscriber is worth.
Why is email often high ROI?
Because you own the list and sending costs little, so even a low conversion rate can produce strong returns. The main investment is building and keeping a clean, engaged list.
What is revenue per email?
Total campaign revenue divided by the number of emails sent. It tells you what each address on your list is worth, which guides how much to invest in growing the list.
How do I improve email ROI?
Keep your list clean and engaged, segment it so offers are relevant, write clear subject lines, and send consistently rather than only when desperate. Relevance beats volume.
How does Veira help?
Veira ties sales to customers, so you can see which buyers responded to a campaign and measure real revenue per email rather than estimating.

Doing this by hand every time? Veira runs the same calculation automatically on every sale, no spreadsheet required.

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