Guide to Essential Oil conversions and dilutions

Essential Oil Conversions 

Ounces to Milliliters

1/8th oz = 3.75 ml
1/4th oz = 7.5 ml
1/2 oz = 15 ml
1 oz = 30 ml
4 oz = 120 ml
8 oz = 237 ml
16 oz = 473 ml


Ounces to Drops

1/8th oz = 75 drops
1/4th oz = 150 drops
1/2 oz = 300 drops
1 oz = 600 drops

Pure undiluted essential oils are very strong. Some essential oils can burn the skin if not diluted. All essential oils are diluted in either carrier oils, diffuser, soap, lotion, massage oil, or an aroma spray. Most people use 1 - 2% dilution meaning that only 1 - 2% of essential oils should go in a finished product. I like to use the 1% dilution for infants, kids, elderly or sensitive skin. 2% dilution for adults or for people with normal skin. 

1% dilution = 6 drops of essential oil per 1 oz of carrier oil

2% dilution = 12 drops of essential oil per 1 oz of carrier oil

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