How do you measure fragrance oil for candles?

Candle fragrance has become the most defining characteristic of a candle.

If you want to learn how to make scented candles at home, it’s essential you start with learning the ins and outs of candle fragrance, beginning with the fragrance load.

amber glass bottle of candle fragrance with dried lavender

Candle Fragrance Frequently Asked Questions:

The fragrance load of a candle correlates to the percentage of fragrance used in candle making. It will determine the scent throw of the candle and the maximum amount of fragrance a candle can hold without causing issues.

  1. When figuring out how much candle fragrance to use, you need to know the fragrance load of your candle wax first. Most candle wax makers will include this on the label and/or in the description of the product. Soy wax, for example, can hold fragrance better than paraffin. 
  2. The second step is choosing your desired fragrance load within the capabilities of the candle wax. Store-bought candles have a common fragrance load of 6%, whereas high-quality, handcrafted candles can have a fragrance load up to 12%, depending on the wax blend. 
  3. Take, for example, this pure soy wax has a maximum fragrance load of 10%. You could choose to make a fragrance load anywhere between 6 and 10 percent working with this wax.

Once you have these numbers, you can put them to use with a fragrance load calculator and calculate the fragrance load for your homemade candle! 

Adding too much fragrance to a candle can cause it to self-extinguish or not burn properly, as well as cause candle sweating.

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It’s no surprise that essential oils have become incredibly popular for all kinds of things, including candle making. But do they deserve the hype when it comes to scented candles? I share the pros and cons of using essential oils for candle making and all candle fragrance types.

  • Follow the steps above and use the candle fragrance load calculator to create the desired strength of your candle scent.
  • Add your fragrance at the correct temperature according to the flashpoint of the fragrance.
  • Make sure to give it a sufficient stir of two minutes to make the candles smell stronger.

Read more tips for making strong-smelling candles in my book!

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Create Candles Made Simple

If you have made candles before or always wanted to, it’s time you became the candle maker you’ve longed to be. I’m here to help you every step of the way, teaching you the art of candle making, refining and evolving your skills with each candle project.

There’s nothing like creating beautiful, rich aromas and the warm glow of candlelight for an instant cozy atmosphere with your two hands!

Homemade scented candles need to cure for a minimum of three days for a good scent throw. But a cure time of 1 to 2 weeks is even better for an incredibly strong candle scent!

This step is easy to figure out when making candles with fragrance oils designed for candle making because the oil’s flashpoint is listed on the label! (Use code CREATEWITHKRISTY10 to get 10% off natural candle fragrances from Makesy.)

However, if you are using essential oils to fragrance candles, you won’t likely find a flashpoint listed anywhere. So, to keep the scent from evaporating, a.k.a. burning off, add essential oils at the lowest temperature possible for your wax type.

Here’s how to use the fragrance load calculator: 

  • #1 Enter how many candles are you making.
  • #2 Enter how many ounces your candle container or candle mold holds.
  • #3 Enter how many ounces of fragrance you plan on adding to the wax.
  • #4 Click CALCULATE to determine the answer.

    The calculator will quickly compute the fragrance load percentage! Adjust the amount of fragrance entered in #3 until you get your desired fragrance load.


    Fragrance Load Calculator



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    Need help figuring out how much candle wax to use? Use the Candle Wax Calculator!

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