We've released a new version of our soap calculator! Learn what's new here.

Soap / lye calculator

Pick your experience level
Select this option if you’re new to soap making.
A step-by-step wizard will guide you through creating your soap recipe, with detailed explanations provided at each stage.
You’ll only be taken through the essential steps of the process, and many values are pre-selected to minimize the number of decisions you need to make.
A step-by-step wizard will guide you through creating your soap recipe, with detailed explanations provided at each stage.
You’ll have full control over every step of the process, allowing you to customize your recipe to your exact preferences.
Select this option if you’re an experienced soap maker.
All parameters and options are displayed on a single page, allowing you to make quick selections without unnecessary navigation.

Enter a name for your soap recipe

Are you making solid or liquid soap?

NOTE: If uncertain about the purity of NaOH/KOH, you are advised to keep the recommended value (99.8% for NaOH and 90% for KOH).

How much water will you put in your soap?

:


Oil quantities and preferred weight unit

Oil quantities will be entered as:
Preferred weight unit:

What is the total weight of all the oils you will use?

Weight:
g
You can also adjust the batch quantity by giving the total capacity (or dimensions) of your mold. Click this button to start:

How much will you superfat your soap?

Select oils and fats

( commonly used fats/oils appear first )
Coconut Oil, 76 deg
Olive Oil
Palm Oil
Shea Butter
Castor Oil
Avocado Oil
Almond Oil, sweet
Cocoa Butter
Mango Seed Butter
Jojoba Oil (jojoba wax ester)
Grapeseed Oil
Hemp Oil
Apricot Kernel Oil
Rice Bran Oil
Sunflower Oil
Safflower Oil
Neem Tree Oil
Canola Oil, high oleic
Cupuacu Butter
Babassu Oil
Almond Butter
Aloe Butter
Andiroba Oil,karaba,crabwood
Argan Oil
Avocado butter
Baobab Oil
Beeswax
Black Cumin Seed Oil, nigella sativa
Borage Oil
Camelina Seed Oil
Camellia Oil, Tea Seed
Canola Oil, rapeseed
Cherry kernel Oil, p. avium
Cherry kernel Oil, p. cerasus
Chicken Fat
Coconut Oil, 92 deg
Coconut Oil, fractionated
Coffee Bean Oil, green
Coffee Bean Oil, roasted
Cohune Oil
Corn Oil
Cottonseed Oil
Cranberry Seed Oil
Crisco, new w/palm
Crisco, old
Duck Fat, flesh & skin
Emu Oil
Evening Primrose Oil
Ghee, any bovine
Goose Fat
Hazelnut Oil
Horse Oil
Illipe Butter
Jatropha Oil, soapnut seed oil
Karanja Oil
Kokum Butter
Kpangnan Butter
Kukui nut Oil
Lard, Pig Tallow
Laurel Fruit Oil
Lauric Acid
Linseed Oil, flax
Loofa Seed Oil, Luffa cylinderica
Macadamia Nut Butter
Macadamia Nut Oil
Mango Seed Oil
Marula Oil
Milk Fat, any bovine
Monoi de Tahiti Oil
Moringa Oil
Mowrah Butter
Murumuru Butter
Mustard Oil, kachi ghani
Myristic Acid
Oat Oil
Oleic Acid
Olive Oil pomace
Ostrich Oil
Palm Kernel Oil
Palm Kernel Oil Flakes, hydrogenated
Palm Stearin
Palmitic Acid
Papaya seed oil, Carica papaya
Passion Fruit Seed Oil
Peach Kernel Oil
Peanut Oil
Perilla Seed Oil
Pistachio Oil
Plum Kernel Oil
Pomegranate Seed Oil
Poppy Seed Oil
Pumpkin Seed Oil virgin
Rabbit Fat
Rapeseed Oil
Red Palm Butter
Rosehip Oil
Sacha Inchi, Plukenetia volubilis
Safflower Oil, high oleic
Sal Butter
Saw Palmetto Extract
Saw Palmetto Oil
Sea Buckthorn Oil, seed
Sea Buckthorn Oil, seed and berry
Sesame Oil
Shea Oil, fractionated
Soybean Oil
Soybean, 27.5% hydrogenated
Stearic Acid
Sunflower Oil, high oleic
Tallow, Bear
Tallow, Beef
Tallow, Deer
Tallow, Goat
Tallow, Sheep
Tamanu Oil, kamani
Tucuma Seed Butter
Ucuuba Butter
Walmart GV Shortening, beef tallow, palm
Walnut Oil
Wheat Germ Oil
Yangu, cape chestnut
Zapote seed oil, (Aceite de Sapuyul or Mamey)
Selected Oils/Fats

Select additives

Achillea (Yarrow) (herb)
Activated charcoal
Almond milk
Aloe Vera (liquid)
Aloe Vera powder
Apricot kernel seeds
Baking Soda
Basil (herb)
Basil essential oil
Beer
Beeswax
Bentonite clay
Bergamot essential oil
Blueberry Seeds
Buttermilk powder
Calendula (herb)
Carrot oil
Cedarwood essential oil
Chamomile (herb)
Chamomile essential oil
Cinnamon (herb)
Cinnamon Leaf essential oil
Citric acid
Citronella essential oil
Clary Sage essential oil
Clay
Clove (herb)
Clove Bud essential oil
Cocoa powder
Coconut milk
Coconut milk powder
Coffee (liquid)
Coffee grounds
Coriander essential oil
Corn meal
Cranberry seeds
Cypress essential oil
Donkey milk
Dried rose buds
Echinacea (herb)
Eucalyptus essential oil
Fennel essential oil
Geranium essential oil
Goat milk
Goat milk powder
Grapefruit essential oil
Grapefruit seed extract
Green clay
Honey
Jasmin absolute essential oil
Juniper essential oil
Kaolin clay
Lanolin
Laurel Leaf essential oil
Lavender (herb)
Lavender essential oil
Lemon balm (herb)
Lemon essential oil
Lemongrass essential oil
Mandarin essential oil
Marigold essential oil
Marjoram essential oil
Mermaid blue mica
Milk
Myrrh essential oil
Myrtle essential oil
Neroli essential oil
Niaouli essential oil
Nutmeg essential oil
Oatmeal
Orange peel powder
Orange, bitter essential oil
Orange, sweet essential oil
Other essential oil or fragrance
Other ingredient
Palmarosa essential oil
Parsley essential oil
Patchouli essential oil
Pennyroyal essential oil
Peppermint (herb)
Pine essential oil
Pine tar
Pink clay
Poppy seeds
Raspberry seeds
Rose essential oil
Rosemary (herb)
Rosemary essential oil
Rosewood essential oil
Salt
Sandalwood essential oil
Silk fibers
Sodium lactate
Spearmint (herb)
Spirulina
Sugar
Tea Tree essential oil
Thyme essential oil
Titanium dioxide
Valerian essential oil
Vanilla essential oil
Verbena essential oil
Vitamin E (Tocopherol)
Walnut leaves
Yarrow essential oil
Ylang essential oil
Selected ingredients

Recipe notes