Strategize

Email ROI Calculator

What is your email list actually generating?

A 50,000-subscriber list looks impressive on a slide. The real question is what each send adds to revenue, what each unsubscribe costs, and whether sending more (or less) lifts the bottom line.

$36
Avg return per $1 spent on email
21.5%
Median open rate (all industries)
0.20%
Avg unsubscribe rate per send
2.6%
Healthy click-to-order conversion
Estimated Monthly Email Revenue
$0
Based on your current cadence and list. Nirvani sequencing on N1 starts at ~$444/mo.
0
Sends Delivered / Month
0
Orders From Email / Month
$0
Annual Run Rate
SaaS

Sets sensible defaults for list size, cadence, opens, clicks, conversion, and AOV.

12,000

People who have opened or clicked at least once in the last 90 days. Stop counting dead weight.

Industry: 10k-25k
1.5

Average sends including newsletters, drips, and broadcasts. Half values let you model bi-weekly cadence.

Industry: 1-2 / wk
32%

% of delivered messages opened. Apple Mail Privacy Protection inflates this by 8-12 points for iOS opens.

Industry: 28-35%
3.5%

Clicks divided by opens. The strongest pulse-check on subject-line and content quality.

Industry: 2.5-4%
4% · $150
Click-to-Order 4.0%
AOV $150

% of clickers that complete a transaction, and the average value of that order.

Industry: 3-5% · $120-200
Revenue Per Send
$0.00
Average dollars produced for every delivered message.
Revenue Per Subscriber
$0.00
Monthly dollars per active subscriber. The truest list-health metric.
Monthly Orders
0
Transactions driven by email each month, at current cadence.
Annual Run Rate
$0
12 x current monthly revenue. Excludes seasonality and growth.
Send Frequency Optimizer
Current Peak revenue
Best cadence for this list based on engagement decay and unsubscribe drag. Lift over your current frequency:
+$0 / mo at 0/wk
Unsubscribe Drag
Assumed 0.20% unsubscribe per send (industry median)
Unsubs / Year
0
Subscribers lost over 12 months at current cadence.
% List Shrink / Year
0%
Net of unsubs only. Bounces and inactivity add more.
$ Drag / Year
$0
Annual revenue lost from departed subscribers, not replaced.
How You Stack Against Your Industry
Industry median You
Open rate % of delivered messages opened
32%
Click-through Clicks / opens (engagement quality)
3.5%
Click-to-order % of clickers that convert
4.0%
Revenue per send Dollars produced per delivered message
$0.00
Revenue per subscriber Monthly $ / active subscriber
$0.00
Sensitivity: which lever moves revenue most?
Modeled against your current inputs
Operator Playbook
1 Suppress inactive subscribers every 90 days. A list of 8k engaged readers prints more revenue than a list of 50k where 70% never open. Deliverability rises, open rates rise, revenue per send rises. The number on the slide goes down. Profit goes up.
2 Segment by purchase recency, not demographics. A buyer in the last 30 days converts at 4 to 8 times the rate of a buyer from 6 months ago. Recency is the single strongest predictor of the next click and the next order.
3 Cadence is a curve, not a constant. Most lists peak between 1 and 3 sends per week. Above that, marginal revenue from extra sends collapses while unsubscribe drag compounds. The optimizer above shows where your list sits.
4 Optimize for revenue per subscriber, not open rate. Open rate is vanity. A subscriber worth $4 a month at a 22% open rate beats a subscriber worth $0.40 a month at a 48% open rate every single time.
5 Turn one-shot broadcasts into 4-touch flows. Welcome, abandoned-cart, post-purchase, and win-back sequences typically generate 30 to 40% of total email revenue with under 5% of total sends. Build the flows before you write the next newsletter.

Free Detailed Report

Get the full breakdown by email & SMS.

We will send you a 5-page PDF with your list math, your industry benchmarks, the three cadence and segmentation moves most likely to lift your revenue per subscriber, and a 30-minute strategy slot with the founder if you want one.

✓

Your email ROI report is on the way.

Check your inbox in the next 2 minutes for the PDF, and your phone for a single confirmation text. Sammy will personally reach out within 24 hours if you flagged the strategy-call option.

See What N1 Includes →

How this calculator works

What formula is running under the hood?
The core engine is a chained funnel. Monthly sends = subscribers x (sends/week x 4.33), opens = sends x open rate, clicks = opens x CTR, orders = clicks x click-to-order, revenue = orders x AOV. Revenue per send and revenue per subscriber are derived divisions. The frequency optimizer models engagement decay: each extra send/week trims the open rate by about 3% (multiplicative) and lifts unsubscribes by 0.20 percentage points, so marginal revenue follows an inverted U.
Why does revenue per subscriber matter more than open rate?
Open rate measures top-of-funnel attention. Revenue per subscriber measures whether that attention is worth paying for. A 45% open rate with $0.20 in monthly revenue per subscriber is a list that costs you ESP fees, deliverability risk, and creative production with little return. A 24% open rate with $3.40 in monthly revenue per subscriber is a printing press. Always optimize for the latter.
How accurate are the industry benchmarks?
Defaults are blended from public email-marketing benchmark reports plus Nirvani deployment data across 200+ SMB clients. They are medians, not means. Your numbers will vary by niche, list source, and segmentation maturity. If your actuals beat the benchmarks, your actuals are the truth. Benchmarks are only there to seed the sliders.
Apple Mail Privacy Protection inflated my opens. Does the model account for that?
The math uses whatever open rate you input. Apple's pre-fetch typically adds 8 to 12 points to reported opens for iOS subscribers (which can be 50%+ of consumer audiences). For a more conservative read, subtract 10 points from your raw open rate before plugging it in, or rely on click-through rate (which Apple's protection does not affect) as your engagement signal.
Is the 0.20% unsubscribe drag assumption realistic?
That is the cross-industry median per send. SaaS and B2B trend lower (0.10 to 0.15%). Aggressive promotional ecommerce can run 0.35 to 0.60%. The drag panel uses 0.20% as a neutral default. Toggle the slider downward to model a clean re-engaged list, upward to model a fatigued one. The compounding effect is what most operators understate.
What is in the detailed PDF report?
Five pages. (1) Your numbers with the full sensitivity table. (2) Your industry benchmarks side by side with your inputs. (3) Three specific cadence and segmentation levers most likely to lift your revenue per subscriber. (4) A list-hygiene audit checklist. (5) A 90-day implementation roadmap, week 1 through day 90. No marketing fluff. You will receive it within 2 minutes of submitting the form.