Candle Wax Calculator
Calculate exactly how much wax you need for your containers. Works with any wax type and container size.
Container Size
Wax Settings
Most popular container soy wax
Wax Needed
Container Volume
13.7 fl oz
Usable Volume
11.7 fl oz
Est. Burn Time
~84 hours
Per Container
10 oz
Production Details
Wax Weight Formula
For container candles:
Density varies by wax type. Soy wax is typically 0.86 (86% the weight of water), while paraffin and beeswax are denser at 0.90-0.96.
Candle Making Tips
- • Always test wicks - this calculator provides a starting point
- • Leave room at top for second pour (sink holes)
- • Add 10% extra wax for pour pot residue and testing
- • Weigh wax, don't measure by volume for consistency
- • Let candles cure 1-2 weeks for best scent throw
Safety Note
Always test burn every candle design. Incorrect wick sizing can cause tunneling, sooting, or dangerous flame heights. Never leave burning candles unattended.
Wax Density by Type
Different waxes have different densities, meaning you need different weights to fill the same container. Here's a comparison:
Soy (464/444)
Coconut
Paraffin
Beeswax
Common Container Sizes
Tins
- 4oz tin: ~3.4oz wax
- 6oz tin: ~5.1oz wax
- 8oz tin: ~6.8oz wax
Jars
- 9oz tumbler: ~7.7oz wax
- 12oz status: ~10oz wax
- 16oz mason: ~14oz wax
Multi-Wick
- 3-wick 14oz: ~12oz wax
- 3-wick 22oz: ~19oz wax
- 3-wick 36oz: ~31oz wax
Based on 85% fill with soy wax (0.86 density). Adjust for your wax type.
Production Tips
- Weigh, don't measure: Always weigh wax for consistency - volume varies with temperature
- Account for shrinkage: Wax shrinks as it cools, often needing a second pour
- Batch your pours: Calculate total wax for all containers plus 10% overage
- Keep records: Note actual wax used vs. calculated for future accuracy
- Test everything: Different fragrances and dyes affect wax volume slightly
Frequently Asked Questions
How do I calculate wax weight from container volume?
Multiply container volume (fluid ounces) by fill percentage (typically 85-90%) by wax density (0.86 for soy, 0.90 for paraffin). For example: 9oz container × 0.85 fill × 0.86 density = 6.6 oz wax. This calculator does this automatically.
Why do I need less wax than container volume?
Wax is less dense than water (which fluid ounces measure). Soy wax is about 86% as dense, so a 10oz container needs only about 8.6oz of wax by weight. You also leave room at the top for wick centering and aesthetics.
How much extra wax should I prepare?
Prepare 10-15% more wax than calculated. This accounts for: wax left in pour pot, topping off after cooling (sink holes), test candles, and spillage. For production runs, the overage percentage can decrease with experience.
What fill level should I use?
Standard is 85% fill, leaving room at top for second pour to fill sink holes. For single-pour waxes or if doing a top pour, you can fill to 90-95%. Leave at least 0.25" below rim for safety and aesthetics.
How do I measure container volume?
Fill container with water to desired level, pour into measuring cup. Or calculate from dimensions: for cylinders, Volume = π × radius² × height. This calculator can compute volume from diameter and height.
What wick size should I use?
Wick size depends on container diameter: 2" needs small wick (CD6-8), 3" needs medium (CD10-12), 4"+ often needs large or multiple wicks. Always test burn - this calculator provides starting recommendations only. Different waxes, fragrances, and dyes affect wick performance.
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