Pricing is the single biggest lever on your profit, yet most founders set prices by guessing, copying a competitor, or simply doubling their cost. That leaves money on the table — or, worse, prices a product so low that every sale actually loses money once rent, ads, and shipping are counted. This product pricing calculator takes your real costs and works backward from a profit margin you choose, so the number you publish is the number that actually pays you.
Enter what the product costs you to make, package, and ship, add your overhead as a percentage, then tell the calculator the gross margin you want on the final sale price. It returns the exact selling price, the profit per unit, and the markup on cost — the three numbers every product seller needs.
How to Use
- Enter the Cost of Goods Sold (COGS) — the direct cost to make or buy one unit, including materials, manufacturing, or your wholesale supplier price.
- Add the Packaging Cost per unit: boxes, mailers, labels, inserts, and any branded wrapping.
- Enter Shipping & Fulfillment — postage plus picking, packing, and any third-party fulfillment fee per order.
- Set your Overhead Allocation as a percentage of direct cost. This covers rent, software, labor, advertising, and other indirect bills spread across every unit you sell.
- Set your Target Profit Margin — the gross profit you want as a percentage of the final selling price. Remember: margin is measured against price, not against cost.
- Read the result card. The Suggested Selling Price is the price that hits your target margin after overhead is covered.
The calculator then breaks the price into a direct cost line, an overhead line, a fully loaded cost, the profit per unit, and the equivalent markup on cost. Slide the margin up and down to see how sensitive your price is to the profit you demand.
The Pricing Formula: Margin vs. Markup
This tool uses margin-based (target-margin) pricing, the method recommended by most small-business accounting guides:
Price = Fully Loaded Cost ÷ (1 − Target Margin)
Where the fully loaded cost is your direct cost (COGS + packaging + shipping) plus your allocated overhead. This is the same relationship documented in the open-source pricing engine pricing-core, where its margin and targetMargin strategies are defined as price = cost / (1 − margin).
Why divide by (1 − margin) instead of simply multiplying by (1 + markup)? Because the two methods are not the same. If a product costs you $24 and you want a 35% margin, the correct price is $24 ÷ (1 − 0.35) = $36.92. A naive 35% markup on cost would instead give $24 × 1.35 = $32.40 — and at that price your true margin is only 25.9%, not 35%. The calculator shows both numbers side by side so you never confuse the two.
Worked example: COGS $15, packaging $2, shipping $3 give a direct cost of $20. A 20% overhead allocation adds $4, for a fully loaded cost of $24. Dividing by (1 − 0.35) lands on $36.92, leaving $12.92 of profit per unit and a markup of about 53.8% on cost.
Why Overhead Matters
The most common pricing mistake is pricing off COGS alone. A $15 product that sells for $25 looks like a $10 profit — until you subtract the $2 box, the $3 postage, and a 20% overhead allocation ($4). Suddenly the real profit is $1, not $10. Building overhead into the cost base up front prevents exactly this surprise.
A good starting overhead percentage is whatever your total monthly indirect costs divided by the number of units you expect to sell in a month equals. If your fixed bills run $2,000 a month and you move 1,000 units, that is $2 per unit — about 10%–20% on a typical product. Plug that in and your price automatically carries the load.
Examples
Example 1 — The $36.92 candle. A maker pays $15 for wax, wicks, and jars, $2 for a box and label, and $3 to ship. They allocate 20% overhead and want a 35% margin. Direct cost is $20, overhead adds $4, and the suggested price is $36.92 with $12.92 profit per unit. Rounding to $36.95 or $37 is normal for retail charm pricing.
Example 2 — Breaking even at zero margin. A new seller tests a product with overhead and margin both set to 0%. With the same $20 direct cost, the price is exactly $20.00 and profit is $0.00. This is the absolute floor you should never sell below — anything under $20 loses money on every order.
Example 3 — A high-volume industrial run. A supplier prices a bulk item: COGS $1,200,000, packaging $50,000, shipping $50,000, 15% overhead, and a 40% target margin. The fully loaded cost is $1,495,000 and the suggested selling price is about $2,491,666.67, leaving $996,666.67 of profit. The engine handles figures of this magnitude without rounding errors.
Example 4 — A tighter 50% margin. For an $8 item with $1.50 packaging, $4 shipping, and 10% overhead, the loaded cost is $14.85. A 50% margin doubles it to a $29.70 price, with profit of $14.85 and a 100% markup on cost — typical for handmade or branded goods.
FAQ
How do you calculate the selling price from cost and margin?
Add COGS, packaging, and shipping to get your direct cost, add overhead as a percentage, then divide the fully loaded cost by (1 minus your target margin). For a $24 loaded cost and a 35% margin: $24 ÷ 0.65 = $36.92. Dividing rather than multiplying is what guarantees the profit is measured against the price, not against the cost.
What is the difference between margin and markup?
Margin is profit as a percentage of the selling price; markup is profit as a percentage of your cost. A product that costs $24 and sells for $36.92 earns $12.92. That is a 35% margin ($12.92 ÷ $36.92) but a 53.8% markup ($12.92 ÷ $24). Confusing the two is the most common reason sellers think they are making more than they are.
What overhead percentage should I use?
Take your total monthly indirect costs — rent, software, subscriptions, part-time labor, and advertising — and divide by the number of units you expect to sell in a month, then express that per-unit overhead as a percentage of direct cost. Many product sellers land between 15% and 30%. If you are unsure, 20% is a reasonable default to test.
Why does the price go up more than I expected?
Because margin pricing divides by a fraction under 1. A 50% margin does not mean doubling cost — it means the cost is only half the price, so you divide by 0.5. Raising your target margin has a disproportionately large effect on price, which is why sliding the margin slider is the fastest way to see your pricing power.
Should I include platform or payment fees in the price?
The overhead field is the right place for roughly predictable fees like payment processing and marketplace commissions if you prefer not to add a separate line. If your fees are a percentage of every sale, raise the overhead allocation to absorb them, or test a higher target margin so the fee comes out of your profit rather than eating it.
What if my target margin is 0%?
At a 0% margin the calculator returns a price equal to your fully loaded cost and $0.00 profit. That is your break-even floor — useful as a minimum advertised price or a loss-leader baseline, but not a sustainable long-term selling price.
Disclaimer
This product pricing calculator is provided for informational purposes only and does not constitute financial, accounting, tax, or legal advice. Results are estimates based on the cost and margin inputs you enter and the standard target-margin pricing formula; actual profitability depends on your overhead, fees, taxes, returns, discounting, and competition. Always validate pricing against your own books and, when needed, a qualified accountant or business advisor before committing to a retail price.