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Subscription Box Churn Calculator
See exactly what churn costs your business — month-by-month subscriber loss, 12-month revenue impact, LTV vs. best-in-class, and the gap to your box-type benchmark. Churn compounds: a 3-point drop almost always adds more revenue than doubling acquisition.
- 4-6%Healthy monthly churnReplenishment boxes
- 7-10%Curated benchmarkBeauty, lifestyle, hobby
- 20-40%Involuntary shareRecoverable with dunning
- FreeAlwaysNo sign-up needed
Live calculator
Enter your subscription numbers
Defaults reflect a 200-subscriber curated box at $40/mo, 7% monthly churn, 50% margin, 25 new subs per month. Edit any input — every metric updates live.
Unit economics
Price and margin per box
Healthy churn
Your churn beats the curated benchmark of 8%
You're keeping subscribers longer than peers — keep validating the playbook that got you here. LTV at this churn is $285.64 per subscriber.
Revenue lost / month$559.8614.0 subscribers churned
12-month revenue lost$6,718.32At current churn pace
Net change / month+11.0Adds minus churn (25 new)
Customer lifetime14.3Months at current churn
LTV impact
What every retention point is worth
Lifetime value at current churn vs. what the same customer would be worth at 3% (best-in-class). The gap is exactly what retention work unlocks per customer.
LTV at your churn
$285.64
14.3 months × $39.99 × 50.0% margin
Best-in-class LTV
$666.50
If churn dropped to 3% monthly
LTV upside per customer
$380.86
What each subscriber could be worth with best-in-class retention
Benchmark gap
-1.0%
You beat the curated benchmark.
Involuntary churn estimate
About 4.2 subscribers/month may be lost to failed payments alone — recoverable with dunning.
Industry data: 20-40% of all subscription churn is involuntary. A full dunning setup (Stripe smart retries, account updater, pre-renewal emails) recovers 50-80% of failed payments. At your current settings that's roughly $109.17 in monthly revenue you could likely save.
12-month outlook
Your subscribers vs. benchmark vs. best-in-class
Same starting subscribers and same monthly acquisition. Only churn varies. The gap is exactly what retention work is worth in subscriber count.
Your churn (7.0%)Curated benchmark (8%)Best-in-class (3%)
Month 12 — your churn291 subs
Month 12 — benchmark271 subs
Month 12 — best-in-class394 subs
Month-by-month
12-month projection table
Each row shows the running subscriber count, monthly revenue, and cumulative revenue lost to churn at your current settings.
| Month | Subscribers | Monthly revenue | Gross profit | Cumulative revenue lost |
|---|---|---|---|---|
| M1 | 211 | $8,437.89 | $4,218.95 | $560 |
| M2 | 221 | $8,846.99 | $4,423.49 | $1,151 |
| M3 | 231 | $9,227.45 | $4,613.72 | $1,770 |
| M4 | 240 | $9,581.28 | $4,790.64 | $2,416 |
| M5 | 248 | $9,910.34 | $4,955.17 | $3,086 |
| M6 | 255 | $10,216.36 | $5,108.18 | $3,780 |
| M7 | 263 | $10,500.97 | $5,250.48 | $4,495 |
| M8 | 269 | $10,765.65 | $5,382.83 | $5,230 |
| M9 | 275 | $11,011.81 | $5,505.90 | $5,984 |
| M10 | 281 | $11,240.73 | $5,620.36 | $6,755 |
| M11 | 286 | $11,453.63 | $5,726.81 | $7,542 |
| M12 | 291 | $11,651.62 | $5,825.81 | $8,343 |
By month 12, you go from 200 to 291 subscribers — a net change of +91 with $8,343.38 in cumulative revenue lost to churn.
Action plan
What to fix first
Three retention moves in priority order. Run them sequentially — most boxes can drop monthly churn by 1.5-3 points in 30-60 days.
Highest leverage
Set up dunning
A modern dunning setup (Stripe smart retries, account updater, pre-renewal emails) recovers 50-80% of failed payments. At your settings that saves roughly $109.17 a month with one operational change.
Quick win
Add a pause option
Native pause is built into Recharge, Subbly, Bold, and Appstle. Boxes that add it typically see 15-25% fewer full cancellations. Subscribers who'd otherwise quit take a 1-3 month break and most return — much cheaper than re-acquiring.
Compounding gain
Improve first-month experience
The first box determines whether someone stays for month 3+. Welcome email sequence, preference quiz, "how to use this month's items" content, and a personal note from the founder all measurably lift month-2 retention by 3-8 points.
Why churn compounds
A snapshot lies — churn is a 24-month movie
Monthly churn doesn't subtract once. It subtracts every month against the surviving base. At 8% churn you lose 63% of a cohort in 12 months; at 5% you lose 46%. That gap stacks across every cohort, every month — which is why most boxes that stagnate are losing the churn race, not the acquisition one.
The retention lever vs. acquisition
3 points of churn ≈ doubling acquisition
Most founders pour budget into more subscribers. The math says otherwise: reducing churn by 3 percentage points almost always adds more revenue than doubling acquisition spend — at a fraction of the cost. Use the Growth Simulator to see the exact 24-month dollar difference for your box.
FAQ
Questions about churn
Seven questions founders ask most when reading their churn numbers.
Q01What's a healthy monthly churn rate for a subscription box?
Subscription-box benchmarks by type: curated boxes 7-10% monthly, replenishment boxes 4-6%, access/membership models 3-5%. Best-in-class boxes across any type sit below 4%. Above 10% monthly is a retention crisis — no amount of acquisition can outrun those losses. Most founders underestimate their own churn because they confuse it with cancellation rate; churn includes failed payments and silent attrition too.
Q02Why does a 3-point churn drop matter so much?
Churn compounds geometrically while acquisition adds linearly. At 8% monthly churn you lose about 63% of any cohort in 12 months — every cohort, every month. Dropping to 5% means losing only 46% of a cohort over the same window. On a 200-subscriber base at $40/box, that's the difference between an LTV of $250 vs. $400 per customer at 50% margin — and that gap scales with every new subscriber you acquire.
Q03How much of my churn is recoverable vs. structural?
Roughly 20-40% of subscription-box churn is involuntary — failed payments, expired cards, declined renewals. A full dunning setup (smart retries, account updater, pre-renewal emails) recovers 50-80% of these. So if you're at 8% monthly churn with 30% involuntary, fixing dunning alone can drop you to 6.5-7% — without changing the box itself. The Cancellation Analyzer breaks down the exact dollar impact by reason.
Q04What's the difference between LTV and customer lifetime?
Customer lifetime is just the average months a subscriber stays — calculated as 1 ÷ monthly churn rate. At 7% monthly churn that's about 14.3 months. LTV (lifetime value) multiplies that by your monthly revenue per subscriber AND your gross margin. At $40/box × 50% margin × 14.3 months, LTV = $286. Most calculators show only one or the other; the combination is what tells you whether you can afford your current CAC.
Q05How does this calculator compute the chart comparison?
Three projection lines over 12 months at your current acquisition rate: (1) Your churn — the blue line, your input; (2) Box-type benchmark — the amber line, the typical churn for curated/replenishment/access boxes; (3) Best-in-class — the teal line, a 3% monthly churn target. Same starting subscribers and same monthly acquisition, only churn varies. The gap between lines is exactly what improved retention is worth in subscriber count.
Q06Why is replenishment churn lower than curated?
Replenishment boxes (food, supplements, skincare, pet consumables) retain better because subscribers naturally run out and the box solves that pain. Curated boxes (beauty, lifestyle, hobby) ride on novelty — once the variety feels predictable, retention drops. Access/membership boxes (BattlBox, Bespoke Post style) sit between because the identity-fit is strong but the items themselves are still discovery-driven. The score weights this — a 7% rate is healthy for a curated box but bad for replenishment.
Q07What's the fastest single fix for high churn?
Three orders, most impact first: (1) Set up dunning — recovers 20-40% of involuntary losses in week one. (2) Add a pause option to the cancellation flow — typical 15-25% reduction in full cancellations. (3) Add a pre-renewal email 7 days before billing — converts a small but meaningful slice of about-to-churn subscribers back to active. None of these change the box; all three together can drop monthly churn by 1.5-3 percentage points within 30-60 days.
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