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The math behind
your perfect candle

Free calculator and guides for candle makers. Get exact wax and fragrance measurements — no guesswork, no upsells.

How It Works

1

Enter Your Jar Size

Type your container volume in fluid ounces or milliliters. We handle the conversion.

2

Choose Wax & Fragrance

Pick your wax type and set your fragrance percentage. We'll warn you if it's too high.

3

Get Your Measurements

Instant results in grams and ounces. Scale up for batches with one click.

Latest Guides

Ingredients & Materials

Best Wax for Container Candles

Compare soy, paraffin, beeswax, and coconut wax for container candles. Pros, cons, and which to pick as a beginner.

Candle Making Basics

Jar Volume to Wax Weight Conversion

Convert your candle jar size in fluid ounces or milliliters to wax weight in grams. Includes density factors for all wax types.