Subscription box margins.

Subscription box margins depend on product curation cost, packaging, and shipping. Typical breakdown: product 30-40%, packaging 5-10%, shipping 15-25%, platform/payment 3-5%. Net margin 20-40% for well-run boxes. Key: boxes must feel like great value to customers while maintaining 2-3x markup on product cost.

1,000 subscribers × 30 box. Product 10 + packaging 2 + shipping 6 + 3% platform = 18.90/box. Profit 11.10/box × 1,000 = 11,100/month. 37% margin. Strong. Typical sub box at 1,000+ subscribers should hit 25-40% margin.

Churn is the subscription box killer. Monthly churn 8-12% is typical. At 10% monthly churn, the entire subscriber base turns over every 10 months. Growth requires acquiring 10%+ new subscribers per month just to stand still. Reduce churn via: surprise and delight (varied curation), community building, annual payment discounts (30-50% lower churn vs monthly).

A worked example

Try the defaults: subscribers of 1,000, box price of 30, product cost per box of 10, packaging cost of 2. The tool returns 11,100.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Subscribers, Box Price, Product Cost per Box, Packaging Cost, and Shipping Cost. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.

The formula behind this

Revenue = subscribers × price. Costs = subscribers × (product + packaging + shipping) + platform fee. Profit = revenue - costs. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

What to do with a low result

A disappointing result is information, not a judgement. Pick the single input that dragged the figure down most and focus the next quarter on that one factor. Breadth-first improvement rarely works; depth-first on the worst input usually does.

What this doesn't capture

The score is a composite of the inputs you provide. Life context — job security, family obligations, health, housing — doesn't appear in the math but shapes the real picture. Use the number as a prompt, not a verdict.