"The 3 3 3 rule in sales says price your product at approximately three times your cost. For subscription boxes, this means: if the items inside cost $12 at wholesale, price the box at $36. It is a useful starting point — but used alone it will underprice your box."
Most subscription box founders price their box by looking at what competitors charge and picking a similar number. That approach fails because you have no idea what their cost structure looks like. A competitor charging $39 might be losing money on every box. The only way to set a price that works is to start with your real costs and build up from there. This guide walks through that process step by step using the same formulas the pricing calculator on this site uses.
What is the 3 3 3 rule?
The 3 3 3 rule is a markup formula used in retail and subscription commerce. The principle is simple: your selling price should be approximately 3 times the cost of your product.
In subscription boxes the formula looks like: Product cost × 3 = Suggested price
If you source $10 worth of products wholesale: $10 × 3 = $30 suggested monthly price
If you source $15 worth of products: $15 × 3 = $45 suggested monthly price
The rule exists because a 3x markup on product cost gives you roughly 66% gross margin on product alone — enough room for other costs and profit.
Why the 3 3 3 rule works as a starting point
| Product Cost | 3x Price | Implied Margin |
|---|---|---|
| $8 | $24 | 66% |
| $12 | $36 | 66% |
| $15 | $45 | 66% |
| $20 | $60 | 66% |
| $25 | $75 | 66% |
The 3x rule gives you a fast sanity check. If your product cost is $15 and you were planning to charge $25, the 3x rule immediately shows you are underpriced — you would need $45 just to cover product costs at a standard markup, let alone everything else.
Why the 3 3 3 rule fails without adjustments
"The 3x rule only accounts for product cost. A subscription box has 5 other costs that the rule completely ignores. Using the 3x rule alone leads to underpricing in almost every case."
The 5 costs the 3x rule ignores:
- Packaging: $1.25–$4.00 per box. Branded outer box, tissue, inserts, stickers. A well-branded box adds $2–$4 in real cost.
- Inbound shipping: $0.50–$1.50 per box. Getting products from supplier to you. Almost always forgotten by first-time founders.
- Outbound shipping: $5.50–$9.00 per box. Delivering the box to your subscriber. This alone can be 20–25% of a $30 price.
- Fulfillment labor: $3–$8 per box. Your time to pack each box. At 12 minutes per box and $25/hour — that is $5 per box in labor.
- Platform fees: 1–11% of revenue. Cratejoy marketplace charges 11.25% + $0.10. Subbly charges 1%. Shopify + Stripe charges about 3.2%.
| Cost Component | Amount |
|---|---|
| Product cost | $12.00 |
| Packaging | $2.50 |
| Inbound shipping | $1.00 |
| Outbound shipping | $6.50 |
| Fulfillment labor | $1.50 |
| Platform fee (Subbly 1%) | $0.30 |
| Total COGS | $23.80 |
3x rule price (based on product only): $36
Real required price at 50% margin: $47.60
Difference: $11.60 per box
At 200 subscribers: $2,320 per month in missed revenue
Monthly revenue left on the table at 200 subscribers when using 3x rule instead of full COGS pricing
The complete pricing formula
THE CORRECT PRICING FORMULA
Required Price = Total COGS ÷ (1 − Target Margin)
At $23.80 COGS and 50% target margin:
$23.80 ÷ 0.50 = $47.60
This is the formula the pricing calculator uses — every real cost included, not just product cost.
When to price above the 3 3 3 rule
"The 3x rule is a floor, not a ceiling. In premium, luxury, and specialty niches, pricing at 4x or 5x product cost is normal and expected. The formula tells you your minimum viable price. Your market tells you how high you can go."
When to charge above the formula:
- Luxury positioning: $60–$150 boxes can carry 5x–8x product cost markup
- Niche expertise: specialized knowledge justifies premium pricing
- Exclusivity: limited edition or hard-to-source products command higher prices
- Strong community: established audience pays premium for trusted curator
The pricing calculator builds your price from every real cost — not just product cost. Takes 2 minutes.
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Related posts
- How to Price a Subscription Box → PRICING
- What Is a Good Profit Margin → PROFIT
- Subscription Box Fulfillment Cost → OPERATIONS
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