Essential Oil Dilution Calculator
Use this essential oil dilution calculator to blend safely with a carrier oil. Enter the carrier amount and the dilution % you want (1%, 2%, 3%…) — it returns how many drops of essential oil to add.
Enter the carrier amount and dilution % to get the drops of essential oil to add.
How to dilute essential oils
A dilution percentage is the share of essential oil in the finished blend. Using a standard drop size, the number of drops is:
The default is 20 drops per mL. For 1 oz (≈30 mL) of carrier, a 1% blend is 6 drops, 2% is 12 drops, and 3% is 18 drops — an easy sanity check.
Worked example
For 30 mL of carrier at 2%: 30 × 20 × 0.02 = 12 drops of essential oil, which is about 0.6 mL.
Related tools
For lab-style percentage solutions, see the percent solution calculator, or the home dilution calculator for concentration-based dilutions.
Frequently asked questions
›How many drops of essential oil per oz for a 2% dilution?
At the common estimate of 20 drops per mL, 1 oz (about 30 mL) of carrier at 2% needs 30 × 20 × 0.02 = 12 drops of essential oil. 1% would be 6 drops, and 3% would be 18 drops.
›What is the essential oil dilution formula?
Drops of essential oil = carrier volume (mL) × drops per mL × (dilution % ÷ 100). The default is 20 drops per mL, though drop size varies by oil and dropper.
›What is a safe dilution for essential oils?
General guidance: 1% for face, sensitive skin, children and the elderly; 2% for daily body use; 3% for a targeted, short-term area. Always follow the guidance for the specific oil and patch-test first — this calculator is for convenience, not medical advice.
›How many drops are in a mL?
Roughly 20 drops per mL is the common rule of thumb, but it depends on the oil viscosity and the orifice reducer. You can change the drops-per-mL value in the calculator if your oil differs.
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