Updated April 2026 · Free · No account needed
Subscription Box Calculator
Free tools for box subscribers and subscription box founders.
VALUE SCORE
1.14
Good value
COST PER ITEM USED
$11.43
At 70.0% usage
ANNUAL COST
$479.88
12 months of this box
RETAIL-TO-PRICE
1.63x
Higher is better
FREE TO USEUPDATED OCTOBER 2026NO ACCOUNT NEEDED14 CALCULATORSRUNS IN YOUR BROWSERCHURN DATA FROM SUBBLY & RECURLYUS SUBSCRIPTION BOX MARKET: ~$10-11B (2025 EST.)HEALTHY MARGIN: 40-55%MEDIAN CHURN: 7.4%/MONTH (SUBBLY 2024)
Today's benchmarks
The numbers healthy boxes target
Common rules of thumb for judging a box's economics. Sourced market and churn data is on the statistics page.
Healthy gross margin
40-55%
Below 30% is the danger zone for subscription boxes
Average monthly churn
7-10%
For curated subscription boxes in the US
Healthy LTV:CAC ratio
3:1+
The unit economics floor for sustainable growth
Churn: Subbly 2024 churn report (median 7.44%) and Recurly benchmarks. Margin and LTV:CAC: widely used operator rules of thumb, not a single study.
Start here
Pick the question, not the calculator
Two audiences. Six starting points. Find yours below.
SUBSCRIBERS
FOUNDERS
The math
The number most subscription box founders never calculate
A subscription box losing 8% of its subscribers monthly does not lose 8% per year. It loses 63%.
Starting with 500 subscribers and adding 25 new ones per month, at 8% monthly churn you end month 12 with 381 subscribers. You acquired 300 new people and still lost ground.
Cut churn from 8% to 5% with the same 25 new subscribers a month and you bill about 28% more subscriber-months over 24 months (12,000 instead of 9,365), without spending a dollar more on acquisition.
At 8% monthly churn
500 → 381 subscribers in 12 months
| Month | Subscribers | Change |
|---|---|---|
| Start | 500 | — |
| M3 | 459 | −41 |
| M6 | 426 | −74 |
| M12 | 381 | −119 (−24%) |
Adding 25 new subscribers per month throughout
Box types
Every major box type, ranked by economics
Margin is what each box-type calculator returns at its default price with free shipping and 2026 USPS rates. Every type lands below the 40% healthy target at those defaults, which is why price and shipping decisions matter. Price and churn ranges are the typical starting assumptions used in each calculator.
| Box type | Avg price | Margin at defaults | Monthly churn | Calculator |
|---|---|---|---|---|
| Beauty | $20-$35/mo | 30.7% | 7-9% | Open |
| Pet | $35-$45/mo | 20.8% | 5-7% | Open |
| Food & Snack | $25-$40/mo | 8.5% | 8-10% | Open |
| Kids & Education | $20-$35/mo | 7.5% | 4-6% | Open |
| Fitness | $30-$50/mo | 18.1% | 6-8% | Open |
| Books | $20-$30/mo | 21.5% | 4-6% | Open |
| Candle & Lifestyle | $35-$55/mo | 17.3% | 6-8% | Open |
| Men's Lifestyle | $45-$65/mo | 23.8% | 5-7% | Open |
Margins calculated with each box-type calculator's default inputs. Updated October 2026.
Every calculator
Every tool on this site, numbered and explained
Each one answers one specific question. Start with pricing or profit.
№01
Profit Calculator
MRR, LTV, CAC payback, and break-even subscribers
Open№02
Pricing Calculator
Build price from real COGS, fees, and target margin
Open№03
Churn Calculator
Revenue lost, subscriber decline, and churn benchmarks
Open№04
Value Calculator
Is your subscription box worth the monthly cost?
Open№05
Multi-Box Tracker
Track all subscriptions and see total monthly spend
Open№06
Launch Readiness Calculator
Operational and financial readiness before you launch
Open№07
Niche Viability Scorer
Score your box idea before spending on inventory
Open№08
Growth Simulator
24-month subscriber and MRR projection
Open№09
Cancellation Analyzer
Revenue cost of each cancellation reason
Open№10
Shipping Calculator
DIM weight and real carrier cost by box dimensions
Open№11
Cratejoy vs Subbly vs Shopify
Full platform cost and feature comparison side by side
Open№12
3PL vs Self-Fulfillment
Find the subscriber count where outsourcing becomes cheaper
Open№13
Break-Even Calculator
Subscribers needed to cover your fixed costs
Open№14
MRR and ARR Calculator
Recurring revenue, net new MRR, and MRR churn
Open№15
COGS Calculator
Cost of goods sold per box and gross margin
Open№16
Prepaid & Gift Pricing Calculator
Price prepaid and gift plans and find your break-even discount
OpenBy stage
Where are you in the journey?
The right calculator depends on your stage. Pick yours.
01
Idea Stage
Not sure if your niche will work
Start here 02Pre-Launch
Ready to launch but need to check the numbers
Start here 03Just Launched (1–100 subscribers)
Setting price and understanding your margin
Start here 04Growing (100–500 subscribers)
Tracking profit, LTV, and break-even
Start here 05High Churn
Subscribers are leaving and you need to find out why
Start here 06Scaling (500+ subscribers)
Deciding on 3PL and modelling 24-month growth
Start hereQ&A
Questions we get every day
Short answers. No fluff.
A tool that calculates the profit, pricing, churn impact, or consumer value of a subscription box. This site has 14 free calculators plus 8 box-type calculators covering the main financial decisions in subscription boxes, from pricing your first box to modeling 24-month growth.
Target 40-55% gross margin, which means revenue minus all costs to produce and ship one box. Below 30% leaves almost no cushion for shipping rate increases or bad product months. Use the profit calculator to see your current margin.
Below 7% monthly for curated boxes like beauty and lifestyle. Below 4% is best-in-class. At 8% monthly churn, a box loses 63% of its subscriber base in a year, even while adding new subscribers. Use the churn calculator to see your 12-month projection.
Most boxes need $3,000-$8,000 to launch with 50 subscribers. This includes the first inventory order, packaging setup, platform fees, and first month marketing. Use the launch readiness calculator to model your specific numbers.
Use the value calculator. Enter your price, number of items, estimated retail value, and how many you actually use. You get an instant value score: 1.10 or above is good value, below 0.90 means you are overpaying.
Guides
Built around the same math the calculators use
No fluff. Every guide connects back to a calculator.
How to Start a Subscription Box
Niche choice, sourcing, pricing, and launch readiness in one place.
Read guideHow to Price a Subscription Box
Build your price from every real cost: COGS, platform fees, shipping, and target margin.
Read guideWhat Is a Good Profit Margin for a Subscription Box?
Gross margin vs net margin and the benchmarks by box type.
Read guide