Free Wick Size Calculator

Wick size is primarily determined by your container diameter and wax type. Measure the inside diameter of your container, select your wax type, and use this calculator to find the recommended size. Always burn test to confirm proper performance.

CD (Stabilo) wicks are the most popular choice for soy wax. ECO wicks are a good alternative. Soy wax tends to tunnel, so you may need to size up one wick compared to paraffin.

For containers larger than 3.5 inches in diameter, multiple wicks help ensure an even melt pool. A single wick may not generate enough heat to melt wax to the edges, causing tunneling and wasted wax.

CD wicks have a cotton core with paper threads and work best with soy and harder waxes. ECO wicks are flat cotton braids ideal for soy blends and natural waxes. HTP wicks have a paper core, are self-trimming, and work well with all wax types.

Yes, burn testing is essential. Wick charts and calculators provide starting points, but every combination of wax, fragrance, dye, and container is unique. A proper burn test (4+ hours) ensures safety and performance.

Fragrance oils change the viscosity and burn characteristics of the wax. Higher fragrance loads (above 6%) may require sizing up one wick to maintain a proper melt pool. Dense or heavy fragrances have an even greater effect.