Pick a concentration to see its typical oil share and wear time, and how many sprays of another concentration carry the same oil as one spray of it. Free, and it shows how long a 2, 5 or 8 ml decant lasts.
Sprays of the same size, compared by the middle of each oil range.
1 spray
EDP
9
Mist
1 spray
Mist
under 0.5
EDP
A guide, not a measurement: the oil share is not the whole story. The notes, the alcohol and your skin change how strong a spray smells.
Change the picksStandard industry bands, from the most to the least concentrated.
| Concentration | Oil share | Wear time |
|---|---|---|
| Parfum (extrait) | 20–30 % | 8–12 h |
| Eau de parfum (EDP) | 15–20 % | 5–8 h |
| Eau de toilette (EDT) | 5–15 % | 3–5 h |
| Eau de cologne (EDC) | 2–5 % | 2–3 h |
| Eau fraîche | 1–3 % | 1–2 h |
| Body mist | 1–3 % | 1–2 h |
Read across: one spray of the concentration in the row carries the oil of the number shown in sprays of the one in the column.
| Parfum | EDP | EDT | EDC | Fraîche | Mist | |
|---|---|---|---|---|---|---|
| Parfum | 1 | 1.5 | 2.5 | 7 | 13 | 13 |
| EDP | 0.5 | 1 | 2 | 5 | 9 | 9 |
| EDT | 0.5 | 0.5 | 1 | 3 | 5 | 5 |
| EDC | <0.5 | <0.5 | 0.5 | 1 | 2 | 2 |
| Fraîche | <0.5 | <0.5 | <0.5 | 0.5 | 1 | 1 |
| Mist | <0.5 | <0.5 | <0.5 | 0.5 | 1 | 1 |
Assumptions: sprays per ml: 10; sprays per wear: 3.
| Decant | Sprays | Wears |
|---|---|---|
| 2 ml | 20 | 6 |
| 5 ml | 50 | 16 |
| 8 ml | 80 | 26 |
Worn once a day, the wears are also the days.
The oil shares are the standard industry bands: parfum (extrait) 20 to 30 %, eau de parfum 15 to 20 %, eau de toilette 5 to 15 %, eau de cologne 2 to 5 %, and eau fraîche and body mist 1 to 3 %. They are the bands perfumery references and fragrance houses commonly quote. The references differ slightly at the edges (Wikipedia's Perfume article, for example, gives 15 to 30 % for parfum and 2 to 3 % for cologne), no law fixes the names, and a house may sit outside a band.
Wear times are typical hours on skin for the same bands: parfum 8 to 12, eau de parfum 5 to 8, eau de toilette 3 to 5, eau de cologne 2 to 3, eau fraîche and body mist 1 to 2. Skin, climate and the notes in the perfume move them a lot, and some references quote lower hours.
The spray match compares the middle of two oil bands (25, 17.5, 10, 3.5 and 2 %) and assumes every spray is the same amount of liquid. One EDP spray carries about 1.75 times the oil of one EDT spray, which is shown as 2. Results are rounded to the nearest half spray below 5 and to a whole spray from 5.
The decant figures assume about 10 sprays per ml (one spray is about 0.1 ml) and the sprays per wear you pick, 3 by default. Your atomizer may differ a little. The sizes are the 2, 5 and 8 ml decants Scento sells.
These are guide values from published ranges, not a lab measurement. How strong a perfume smells also depends on its notes and how it is made, so test on your skin.
