Getting your ratios wrong is the most common mistake when making your own dupe perfume at home. Too much fragrance oil and the scent becomes overpowering. Too little and it fades within the hour. The good news: the maths is simple once you have the right tool.
Use the two calculators below — the first tells you exactly how much of each ingredient to add per bottle. The second tells you how many bottles you can fill from the fragrance oil you’ve bought.
Enter your bottle size and your preferred fragrance oil concentration. The calculator will instantly break down how much fragrance oil, fixative, and perfumer’s alcohol you need.
Craft your perfect formula
Your Bottle
Formula Breakdown
Fragrance Oil
20.00%
6.00 ml
Fixative
2.00%
0.60 ml
Perfumers Alcohol
78.00%
23.40 ml
Formula exceeds 100% — please reduce fragrance oil concentration.
Know how much fragrance oil you have, and want to know how many bottles you can fill? Enter your stock and bottle size below. The calculator will also tell you exactly how much perfumer's alcohol and fixative to buy.
Know exactly how far your oil goes
Your Ingredients
Your Results
Bottles you can fill
16
× 30 ml bottles
Fragrance Oil
6.00 ml
per bottle
Fixative
0.60 ml
per bottle
Fixative to Buy
9.60 ml
total across all bottles
Perfumers Alcohol to Buy
374.40 ml
23.40 ml per bottle
Concentration too high — please reduce fragrance oil percentage.
Once you know your formula, browse Scentella's full range of 400+ inspired fragrance oils to find your scent. Or WhatsApp us if you need help choosing the right oil for your blend.
