DIY recipe cost calculator what homemade really costs, per load or per bath bomb

Pick a recipe or paste your own. Every ingredient is priced at the cheapest pack from 28 stores.

Homemade

$0.15 a load

61 loads from one 1,225 gram batch + your bar soap

Store-bought a load

Stores: United States · 20 grams a load · 1 batchChange

Stores in

Grams per load

Buy enough for

It goes on skin: price only food, cosmetic and pharmacy grades

$4.16

Buy 2 × 454 grams for $7.54 at Wholesale Supplies Plus. 407 grams left over.
$5.15

Buy 2 × 454 grams for $9.34 at Wholesale Supplies Plus. 407 grams left over.
From your kitchen. Type its cost.

One batchPlus your bar soap: $9.30
Buy todayWhole packs, before shipping. Enough for 1 batch.: $16.88

Paste a recipe

One ingredient a line, with its weight. Like "Baking soda 400 grams" or "1 lb borax".

Use at your own risk. These recipes and prices are general information, not safety, medical or legal advice. Wear gloves and eye protection, never mix with bleach or other cleaners, and keep it away from children and pets.

More safety notes

Prices are a guide. In-stock pack prices from 28 stores, checked November 2, 2026, in US dollars without shipping or tax. The store's page is the final word.
Read the safety data sheet for each product, work in fresh air, and label every jar. Homemade cleaners look like sugar or salt.
Patch test anything for skin. Stop if it stings or itches. Washing soda and borax are for laundry and dishes, never for skin.
Selling what you make? Cosmetics and cleaners have their own label and safety rules, such as the FDA's in the United States, Health Canada's, and a safety assessment in the European Union and the United Kingdom.
Only household recipes. The calculator prices a fixed list of cleaning and bath ingredients. We never price or give recipes for anything dangerous or illegal to make. See our terms.

Recipes, worked out

At the cheapest packs in the United States. Open one for the method.

More free tools

How it works: each ingredient is priced at the cheapest whole packs that cover the amount, from one store, then shared out by weight. Kitchen items like soap and oil use the price you type. Prices cover 8 chemicals: each store's in-stock pack price, in US dollars at European Central Bank rates of 2026-11-02, without shipping or tax.