Soap School Toolbox
Free calculators and helpers from Nurture Soap School to plan, make and sell your soap, grouped by what they help with. Not sure where to start? Take the Start Here quiz and we'll point you to the right ones.
Recipe and batch
Work out a safe recipe, how much fills your mold, and your measurements.
Lye Calculator
Saponification made simple. Dial in your lye and liquid with zero stress.
Open the Lye Calculator →Mold Calculator
Pick your mold or enter its size and see exactly how much oil fills it.
Open the Mold Calculator →Oil Swap Helper
Out of an oil? See which oils can take its place and how your bar will change.
Open the Oil Swap Helper →Measurement Converter
Teaspoons to grams, usage rates for your batch, ounces to milliliters, and scaling a recipe up or down.
Open the Measurement Converter →
Fragrance
How much fragrance to use, blending scents, and what a fragrance does to your soap.
Fragrance Calculator
Just plug in your batch size and let us find your perfect scent strength.
Open the Fragrance Calculator →Fragrance Blend Builder
Mix two or more fragrances and see the safe max, browning, scent notes and how much of each to use.
Open the Fragrance Blend Builder →Browning Preview
See how a fragrance will change your soap as it cures, your colors after browning, and colors that work with it.
Open the Browning Preview →
Color and design
Find, match and mix colors for your soap.
Find Your Nurture Match
Have a color from another brand? Type its name or add a photo, and find the Nurture color that matches it.
Find your match →Photo Palette Matcher
Add a photo you love and find the Nurture colors that match it.
Open the Photo Palette Matcher →Color Blender
Mix, match, and master your very own custom colors.
Open the Color Blender →
Selling your soap
Pricing, labels, listings and wording that keeps your soap a soap.
Soap Cost Calculator
Cost out every oil, scent, color, additive, wrapper and minute of your time, then set wholesale and retail prices.
Open the Soap Cost Calculator →Ingredient List Maker
Turn your soap recipe into its ingredient list, in the right order with the right names.
Open the Ingredient List Maker →Soap Claim Checker
Paste your soap description and see which words could make it a cosmetic or a drug, with safer wording to use.
Open the Soap Claim Checker →Soap Listing Writer
Pick your fragrance and colors and get titles, scent notes and a description for your listing.
Open the Soap Listing Writer →