Cold Email ROI Calculator

Plug in your real numbers to see whether cold email actually pays for itself — and by how much.

Free · no sign-up · runs in your browser

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Some links are affiliate links. If you sign up through them we may earn a commission at no extra cost to you — it never changes what the calculator shows.

Editorial note: This tool is for informational and educational purposes only and is not financial or business advice. The output is an estimate based entirely on the numbers you enter. Real campaigns vary with deliverability, targeting, offer, and market. Use it to pressure-test assumptions, not as a guarantee.

How to read your cold email ROI

The headline number is your return multiple: how many dollars of revenue you get back for every dollar you put into cold email. A 5× result means $5 in new revenue for every $1 of fully-loaded cost. Anything above 1× is profitable; below 1× means the campaign is losing money as modeled.

The calculator walks your funnel from prospects to revenue in four steps — prospects emailed, positive replies, meetings booked, and closed customers — then compares the revenue those customers generate against your total monthly cost, including the part most people ignore: their own time.

What realistic inputs look like

Garbage in, garbage out. These ranges reflect what solid B2B campaigns actually see in 2026:

The costs people forget

Cold email looks almost free until you add it all up. Beyond the sending platform, you're paying for extra domains and inboxes to protect deliverability, lead data, and — the big one — your own hours writing copy, building lists, and working the inbox. Leaving labor out is the most common way people convince themselves a losing campaign is winning. For a deeper breakdown, see how much cold email setup actually costs and the full cold email ROI math for 2026.

Frequently asked questions

Is cold email worth it in 2026?

It's worth it when the revenue from customers it generates clearly beats the fully-loaded cost of running it. For offers with a deal value above roughly $1,000 and a repeatable message, cold email often returns several dollars per dollar spent. For low-ticket or poorly targeted campaigns, it frequently loses money — which this calculator will show you honestly.

What is a good ROI for cold email?

A dialed-in campaign usually returns 3× to 15× its total monthly cost. Before deliverability and messaging are optimized, ROI can be negative. Deal value is the biggest swing factor.

How much does cold email cost per month?

A typical solo or small-team setup runs about $100–$400/month in hard costs — sending platform, extra domains and inboxes, and lead data — plus your time, which is usually the largest cost of all.

What is a realistic positive reply rate?

1–3% of prospects contacted is realistic once your setup is solid. Total reply rates are higher, but modeling positive replies keeps your projection honest.

Methodology. Customers per month = prospects × positive reply rate × meeting rate × close rate. Revenue = customers × revenue per customer. Total cost = software + infrastructure + data + (hours × hourly value). ROI multiple = revenue ÷ total cost; net profit = revenue − total cost; customer acquisition cost = total cost ÷ customers. Benchmark ranges are general 2026 B2B figures, not a guarantee for any specific campaign.

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