How It Works
Three simple steps to get accurate calculations
Enter price and subscribers
Add current actives and either new subs or monthly growth % with churn.
Add per‑box costs
Items, packaging, shipping, labor minutes, and staff hourly.
Include fixed costs
Marketing and overhead. Optionally add spoilage, refunds, and capacity hours.
Subscription Box Business Calculator
Calculate per‑box unit economics and monthly profit. Model subscribers, churn, marketing, shipping, and fulfillment time.
Share Your Scenario
Copy link with your current inputs
Quick Setup
Average billed price per shipment (tax excluded).
Number of paying subscribers receiving this month's box.
New subscribers you expect this month. Leave 0 if using growth %.
If > 0, new subs are estimated as current actives × growth%.
Percent of actives who cancel each month (e.g., 7%).
Per‑Box Costs
Total cost of items placed inside the box.
Box, filler, sticker, booklet, etc.
Average outbound label cost. Add buffer if zones vary.
Pick, pack, label, and QA time per box.
Blended hourly for fulfillment team.
Fixed Costs
Paid ads, influencers, affiliates, etc.
Rent, software, insurance, and other fixed costs.
Advanced (Optional)
Percent of item cost added for damage, loss, or overage.
Hours your team can commit to fulfillment this month.
Percent of boxes refunded (damaged, lost in transit).
Average net refund cost (product + shipping, net of recovery).
Enter your CAC if known; otherwise we estimate it as Marketing / New Subs.
Results
Per‑Box Unit Economics
Monthly P&L
Growth & Capacity
CAC, Payback & LTV
Frequently Asked Questions
How do I reduce shipping impact?
What if I offer a discounted first box?
How do I handle seasonal spikes?
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