Fresh to Dry Herb Converter
Convert fresh herbs to dried herbs and back, using the standard three-to-one ratio.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
Enter an amount in any unit; the fresh and dried equivalents use that same unit. The ratio varies by herb type.
Worked example
calculated with the default values below
Amount (use a consistent unit) 3 · Herb type Robust (oregano, thyme, rosemary) Dried equivalent 1.000 · Fresh equivalent 9.000 · Fresh to dried ratio 3 : 1
General background references
Disclaimer
These calculators give general cooking guidance. Ingredient density, oven calibration, altitude and equipment all vary, and safe minimum internal temperatures always take precedence over timings. Follow the food-safety advice issued by your national authority.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
dried = amount / r; fresh = amount x r; r = { 3, h ∈ R; 4, h ∈ D }
- amount
- quantity of the reference form
- r
- fresh-to-dry ratio
- dried
- dried-herb equivalent
- fresh
- fresh-herb equivalent
- h
- herb
- R
- robust-herb set
- D
- delicate-herb set
Enter the fresh amount in any unit and keep that unit for the dried equivalent. The model divides by 3 for robust herbs and by 4 for delicate herbs; these are kitchen estimates, not exact substitutions for every recipe.
Frequently asked questions
Which unit should I use for the fresh-to-dried conversion?
Enter the fresh amount in any unit and keep that unit for the dried equivalent. The model divides by 3 for robust herbs and by 4 for delicate herbs; these are kitchen estimates, not exact substitutions for every recipe.