# How do I calculate the amount of fragrance oil I need?

> First you need to know what percentage of fragrance oil you want to use The average usage is 6  Please reference our  FAQ  for more information to help dete

Source: https://support.candlescience.com/en_us/how-do-i-calculate-the-amount-of-fragrance-oil-i-need-SyntMBWRbx

Last updated: 2026-04-30T21:29:08.646Z

First, you need to know what percentage of fragrance oil you want to use. The average usage is 6%.

Please reference our [How much fragrance oil should I add to melted wax?](https://support.candlescience.com/en_us/how-much-fragrance-oil-should-i-add-to-melted-wax-B15NnQAWl) article for more information to help determine how much fragrance oil to use with your particular wax.

Here is a simple formula:

(**oz / grams of wax using**) x (**% of fragrance oil you want to use, converted to a decimal**) = (**oz / grams of fragrance oil needed**)

For example, let's say you are using two pounds (32 oz/908 grams) of wax and want to use 6% fragrance oil.

Plug these numbers into your formula:

32 oz (or 908 grams) x 0.06 = 1.92oz (or 54.48 grams)

You can round up to 2oz or 55 grams for easy measuring on your scale.