How to Use Our Calculator
Our candle calculator helps you plan candle purchases based on usage and burn time, plus calculate ingredient quantities if you're making candles yourself.
"How many candles do I need for my use case?"
Enter how often you burn candles, how long each session lasts, and the typical advertised burn time of candles in your size range. The calculator factors in real-world burn time (typically 75-85% of advertised) and tells you how long one candle will realistically last, so you can plan how many to buy and how often to replace them.
"How much wax and fragrance oil do I need to make X candles?"
For DIY candle making, the calculator handles wax quantity (in pounds or ounces), recommended fragrance oil percentage by wax type (soy generally takes 6-10%, paraffin 8-12%, beeswax 3-6%), and total ingredient cost based on bulk material prices.
Other Helpful Resources
Beyond the calculator, our most-used tool resources include the wax comparison guide (burn time, scent throw, soot production, and price for each major wax type), a burn time reality check explaining why a "60-hour" candle gives you 45-50 hours in practice, and our candle making guide with a wick sizing chart for DIY projects.
Frequently Asked Tool Questions
Why doesn't the calculator account for my specific candle brand? Burn time varies enough between manufacturers (and even between scents within the same brand) that we use general averages. For most accurate planning, use the manufacturer's stated burn time and apply our 80% real-world adjustment.
How accurate are the DIY ingredient estimates? Within ±10% for most home candle making. Variables that shift it: wax flake density, specific fragrance oil viscosity, vessel size irregularities. Always have 10-15% extra wax and fragrance on your first try.
Can the calculator handle wax blends? For 50/50 blends, average the recommended fragrance oil percentage between the two wax types. For more complex blends, consult the wax supplier's documentation as ratios vary by manufacturer.
Quick interactive tools to help you make better candle decisions. Estimate how long a candle will last, compare burn time on a warmer, calculate cost per hour — all without spreadsheets.
How we test our calculators
Every calculator on Candle Buyer Guide uses real-world data from candles we've burned and timed. The burn-time calculator's wax-specific rates come from comparing manufacturer claims against our own session logs across more than 40 candles tested over the past two years.
Where formulas are estimates, we explain the assumptions transparently. Burn time depends on wick trim, draft, ambient temperature, and session length — the calculator gives you the median expected range, not a guarantee.
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