🕯️ Wax Calculator
Enter your container size, how many candles you're pouring, the fill level, and the wax type to see the wax per container and the batch total in ounces and pounds — no more guessing or wasted wax.
🧮 How Much Wax For Your Batch
What is a Wax Calculator?
It turns a container size into the weight of wax you actually need to melt. Because wax is measured by weight but jars are described by volume, this tool applies a typical wax density and your fill level to give the wax per container, then multiplies across the batch for a clean shopping total in ounces and pounds.
Use it to buy the right amount of wax the first time, scale a favourite recipe up or down, and compare how much soy, paraffin, beeswax, or coconut a run will take. It's a planning estimate — weigh a single test pour to dial in the numbers for your exact wax and containers.
❓ Frequently Asked Questions
How much wax do I need for my candles?
It depends on your container's volume, how many candles you're making, and your wax's density. Wax weighs less than the water a container holds, so you can't read weight straight off fluid ounces — a common maker's rule is roughly 0.86–0.90 oz of wax per fluid ounce of container. This calculator applies that density and your fill level to give the wax per container and the batch total.
Why is the wax weight less than the container's fluid ounces?
Fluid ounces measure volume, but candles are sold and poured by weight. Wax is lighter than water, so an 8 fl-oz jar holds only about 6–7 oz of wax by weight once you account for density and leaving a little headspace below the brim.
What is the fill factor?
The fill factor is the fraction of the container you actually fill with wax. Candles aren't poured to the very top — a factor around 0.9 leaves sensible headspace so the melt pool has room and the candle looks right. Lower it if you pour shallower.
Does the wax type change how much I need?
Yes. Denser waxes like beeswax and coconut pack a little more weight into the same volume than soy or paraffin, so switching wax type nudges the total. The calculator uses a typical density per wax type — always weigh a test pour to confirm for your exact product.