Soap / lye calculator

Pick your experience level
Check this if you are a novice soap maker.
A step-by-step wizard guides you to build your soap recipe, giving detailed explanations of each step.
You will be taken only through the necessary steps of the process. We have pre-selected some of the values for you, so that you have to make the minimum number of choices.
A step-by-step wizard guides you to build your soap recipe, giving detailed explanations of each step.
You can still control all steps of the process!
Check this if you are an experienced soap maker.
All parameters and selections are laid out in a single page, so you can make your selections fast.
Type a name for your 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%).
How much water will you put in your soap?

Are you measuring in weight or percentage of oils?
What is the total weight of all the oils you will use?
Weight:
Weight is measured in:
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
Almond Butter
Almond Oil, sweet
Aloe Butter
Andiroba Oil,karaba,crabwood
Apricot Kernel Oil
Argan Oil
Avocado butter
Avocado Oil
Babassu Oil
Baobab Oil
Beeswax
Black Cumin Seed Oil, nigella sativa
Borage Oil
Camelina Seed Oil
Camellia Oil, Tea Seed
Canola Oil, high oleic
Canola Oil, rapeseed
Castor Oil
Cherry kernel Oil, p. avium
Cherry kernel Oil, p. cerasus
Chicken Fat
Cocoa Butter
Coconut Oil, 76 deg
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
Cupuacu Butter
Duck Fat, flesh & skin
Emu Oil
Evening Primrose Oil
Flax Oil, linseed
Ghee, any bovine
Goose Fat
Grapeseed Oil
Hazelnut Oil
Hemp Oil
Horse Oil
Illipe Butter
Jatropha Oil, soapnut seed oil
Jojoba Oil (jojoba wax ester)
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 Butter
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
Neem Tree Oil
Oat Oil
Oleic Acid
Olive Oil
Olive Oil pomace
Ostrich Oil
Palm Kernel Oil
Palm Kernel Oil Flakes, hydrogenated
Palm Oil
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
Rice Bran Oil
Rosehip Oil
Sacha Inchi, Plukenetia volubilis
Safflower Oil
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 Butter
Shea Oil, fractionated
Soybean Oil
Soybean, 27.5% hydrogenated
Stearic Acid
Sunflower Oil
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)
Select additives
Aloe Vera
Basil (herb)
Basil essential oil
Bergamot essential oil
Calendula (herb)
Carrot oil
Cedarwood essential oil
Chamomile (herb)
Chamomile essential oil
Cinnamon (herb)
Cinnamon Leaf essential oil
Citronella essential oil
Clary Sage essential oil
Clove (herb)
Clove Bud essential oil
Coriander essential oil
Cypress essential oil
Echinacea (herb)
Eucalyptus essential oil
Fennel essential oil
Geranium essential oil
Grapefruit essential oil
Grapefruit seed extract
Honey
Jasmin absolute essential oil
Juniper essential oil
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
Myrrh essential oil
Myrtle essential oil
Neroli essential oil
Niaouli essential oil
Nutmeg essential oil
Oatmeal
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
Rose essential oil
Rosemary (herb)
Rosemary essential oil
Rosewood essential oil
Sandalwood essential oil
Spearmint (herb)
Spirulina
Tea Tree essential oil
Thyme essential oil
Valerian essential oil
Vanilla essential oil
Verbena essential oil
Walnut leaves
Yarrow (herb)
Yarrow essential oil
Ylang essential oil
Notes