Scent Sillage Radius Predictor
Estimate the distance your fragrance projects based on temperature, sprays, and notes.
What is the Scent Sillage Radius Predictor?
The Scent Sillage Radius Predictor is a beauty decision engine designed to estimate the projection bubble (sillage radius in feet) of your fragrance. Scent projection is highly sensitive to environmental heat and spray counts. This tool helps you check your projected scent cloud radius and warns you if you risk choking out an indoor office space.
How Does the Scent Sillage Radius Predictor Work?
1. Provide Temperature — Current ambient temperature in Fahrenheit.
2. Enter Sprays Applied — The number of sprays you plan to wear.
3. Choose Concentration — EDT (light/louder projection), EDP, or Extrait (closer to skin).
4. Select Accord Type — Choose Citrus/Aquatic (volatile/wide) or Amber/Woody (heavy/close).
5. Set Environment — Select Indoor confined space or Outdoor open air.
6. Analyze Sillage Radius — Review projected projection feet and risk grades.
Formula & Calculation Method
Sillage Calculation Logic:
- Base Sillage Radius: EDT (3.5 ft - high alcohol projects wider), EDP (2.5 ft), Extrait (1.6 ft - heavy oils sit close to pulse points).
- Heat Multiplier: 1 + (Temp°F - 70) × 0.025. Heat increases vapor pressure, accelerating evaporation.
- Spray Volume Multiplier: 1 + (Sprays - 4) × 0.18.
- Accord volatility: Citrus/Aquatic (+30% radius), Amber/Woody (-18% radius).
- Environment: Outdoor wind disperses trails (-35% radius).
Example Calculation
Example: Applying 6 sprays of a Citrus EDT (Perfume 1) indoors in hot 85°F weather.
- Base Radius (EDT): 3.5 feet
- Adjustments:
- 85°F Temperature = 1.375x
- 6 Sprays = 1.36x
- Citrus Accord = 1.30x
- Indoor = 1.0x
- Projected Sillage: 3.5 × 1.375 × 1.36 × 1.30 = 8.5 feet.
- Grade: Loud/Choking Risk indoors (exceeds 5 ft safety line). Recommends dropping to 3 sprays.
Frequently Asked Questions
**Sillage Calculation Logic:** - **Base Sillage Radius:** EDT (3.5 ft - high alcohol projects wider), EDP (2.5 ft), Extrait (1.6 ft - heavy oils sit close to pulse points). - **Heat Multiplier:** 1 + (Temp°F - 70) × 0.025. Heat increases vapor pressure, accelerating evaporation. - **Spray Volume Multiplier:** 1 + (Sprays - 4) × 0.18. - **Accord volatility:** Citrus/Aquatic (+30% radius), Amber/Woody (-18% radius). - **Environment:** Outdoor wind disperses trails (-35% radius).
Disclaimer: This tool is provided for informational and calculation purposes. Output values are estimates based on standard user inputs.