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Essential Oil Dilution Calculator

Work out essential oil dilution instantly with clear inputs, formula shown and shareable results.

About Essential Oil Dilution Calculator

Essential oil volume is the carrier volume times the dilution percentage, converted to drops at the standard twenty drops per millilitre. Dilution is the main safety control in aromatherapy, and drop counts vary with viscosity, which is why weighing is more reliable than counting for repeatable blends.

Formulas

Oil volume

ml = carrier oil ml x dilution percentage

Drops

drops = oil ml x drops per ml

Worked example

With the default values below, Essential Oil Dilution Calculator returns Drops of essential oil of 12.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Carrier oil volumeminimum 0.1 ml
30 ml
Target dilutionaccepts 0.05–20 %
2 %
Drops per millilitreminimum 1
20

Results

Drops of essential oil
12.0
Essential oil by volume
0.600 ml
Finished blend volume
30.60 ml
Typical use for this dilution
Standard adult body dilution

Step by step

  1. 1Values used
  2. 2Oil volume
  3. 3Drops
  4. 4Drops of essential oil= 12.0
  5. 5Essential oil by volume= 0.600 ml
  6. 6Finished blend volume= 30.60 ml
  7. 7Typical use for this dilution= Standard adult body dilution

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Dilution guidance is general information, not medical advice. Check contraindications for each oil before use on skin.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Dilution guidance is general information, not medical advice. Check contraindications for each oil before use on skin.

Frequently Asked Questions

How is the Essential Oil Dilution figure worked out?

ml = carrier oil ml x dilution percentage. Essential oil volume is the carrier volume times the dilution percentage, converted to drops at the standard twenty drops per millilitre.

Why does this matter?

Dilution is the main safety control in aromatherapy, and drop counts vary with viscosity, which is why weighing is more reliable than counting for repeatable blends.

What do I need to enter?

Enter carrier oil volume, target dilution, drops per millilitre. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

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