How to calculate what your handmade products really cost you

A practical guide for makers who buy in bulk and sell one at a time.

Here is the problem in one sentence. You buy wax in ten pound bags and jars by the case, then you sell candles one at a time, and nobody ever does the division in between.

So you price by feel. Then a year later you find out that your bestseller, the one you can barely keep in stock, was making you about forty cents. This guide walks through the arithmetic properly, with a worked example you can copy for your own products.

First, what counts as cost

The number you are looking for has a formal name, cost of goods sold, or COGS. It sounds like an accounting term because it is one, but the idea is simple. It is what physically went into the thing you sold.

For one candle that means the wax, the fragrance, the wick, the jar, and the label. It does not include your rent, your Shopify subscription, your camera, or the hours you spent photographing it. Those are real costs, but they are business overhead rather than product cost, and mixing them in makes the number useless for pricing decisions.

Step one: list everything that goes into one unit

Everything. This is where most calculations go wrong, because the small items feel too trivial to bother with. A wick is twelve cents. A warning label is four cents. Individually they are noise. Across a few hundred units they are the difference between a healthy margin and a hobby.

Write down every physical item, including the ones you forget:

• The obvious materials (wax, oils, base, clay, flour)
• The vessel or container, and its lid
• Wicks, stickers, warning labels, product labels
• Packaging that ships with the product (box, tissue, insert card)

Step two: turn bulk prices into a cost per unit of measure

This is the step people skip, and it is the whole game. Your supplier prices things by the bag, the case, or the bottle. Your recipe uses grams and milliliters. You need them in the same language.

The conversion is always the same shape:

A few conversions worth keeping handy: one pound is 453.6 grams, one ounce is 28.35 grams, and one US fluid ounce is 29.57 milliliters. If your supplier sells by weight and your recipe is by volume, work in whichever one your scale actually measures, because that is the number you can check.

Do not forget shipping on your supplies

If that $40 bag of wax cost $12 to ship, the bag really cost you $52, and your true cost per gram is $0.0115 rather than $0.0088. That is a thirty percent difference on your single largest material. Spread the freight across what you received and use that number.

Step three: add it up

Here is a complete worked example for a single eight ounce soy candle, using realistic supplier prices.

Material	What you paid	Used per candle	Cost
Soy wax	$40 per 10 lb bag (4,536 g)	120 g	$1.06
Fragrance oil	$28 per 16 oz bottle (454 g)	12 g	$0.74
Wick	$12 per pack of 100	1	$0.12
Jar with lid	$18 per case of 12	1	$1.50
Label	$9 per sheet of 30	1	$0.30
True cost per candle			$3.72

Notice that the jar costs more than the wax. That surprises almost everyone the first time they run these numbers, and it is exactly the kind of thing that changes what you buy next.

Step four: compare it to what you charge

If that candle sells for $20, your gross profit is $16.28 and your margin is about 81 percent. Margin is the share of the selling price you keep after materials:

Eighty one percent sounds wonderful, and this is the point where a lot of guides stop. They should not, because that number is not really your profit.

The part almost everyone leaves out: your time

Strictly, COGS covers materials and any labor you actually pay for. If you make everything yourself, your own hours are not in that number. But if you price as though your time is free, you will build a business that cannot afford to hire you.

Say that candle takes twelve minutes end to end, including melting, pouring, curing checks, labeling, and cleanup. At $20 an hour, that is $4.00 of labor.

• Materials only: $3.72 cost, 81 percent margin
• Materials plus your time: $7.72 cost, 61 percent margin

Both numbers are worth knowing. Track the materials number, because that is the one that has to be right for your books and your reorder decisions. Price against the second one, because that is the one that tells you whether the work is worth doing.

What margin should you aim for

There is no single correct answer, but there are useful reference points. Handmade sellers going direct to customers usually want a materials margin somewhere north of 60 percent, because that gap has to absorb your time, your fees, your packaging, breakages, discounts, and the months when nothing sells.

If you also sell wholesale, work backwards from there. Wholesale is typically half of your retail price, so anything that does not clear a healthy margin at half price cannot be sold wholesale without losing money.

Five mistakes that quietly wreck the number

1. Skipping the small items. Wicks, warning labels, and tissue paper feel too small to count. They are not.
2. Ignoring waste. If one pour in twenty fails, your real cost per sellable unit is about five percent higher than your recipe says.
3. Using last year's prices. Supply costs move. A number you worked out eighteen months ago is a guess wearing a disguise.
4. Forgetting freight. Shipping on supplies is part of what the material cost you.
5. Pricing off materials alone. It looks profitable right up until you count the hours.

Keeping it true

The hardest part is not the arithmetic, it is that the arithmetic goes stale. Every time a supplier raises a price, every time you tweak a recipe, every one of these numbers moves, and the spreadsheet you built in January slowly stops describing reality.

That is the problem we built Benchtop for. You enter your materials and what you paid, you tell it what goes into each product, and it keeps the cost and margin current on its own. When you log a batch, it takes the materials off your shelf and pushes the finished stock into Shopify so you are not typing the same numbers twice.

See how Benchtop works