Room Spray Calculator
Enter your bottle size and fragrance load to get exact amounts by weight. Fragrance load is calculated against the total finished spray weight (the industry standard).
Most bases: 5–10%. Check your supplier.
Water-based = 1.0. Leave at 1.0 if unsure.
Your room spray formula
Fragrance oil (total)
Room spray base (total)
Per bottle: fragrance oil
Per bottle: base
⚠ Over 10%! Many room spray bases max out around 10% fragrance before separation occurs. Check your base supplier’s recommendation and test before committing to a batch.
Fragrance load is measured by weight against the total finished spray. Always check the IFRA limit for your fragrance (Category 10B covers air fresheners) and test for separation, discoloration, and scent strength in your own base.
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