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A browser-based candle burn time estimator tool. No data sent to server.

📘 How to Use

  1. Enter the total weight of the wax in grams.
  2. For a quick estimate, select the wax type and wick size in 'Standard Mode'.
  3. For a precise calculation, switch to 'Calibration Mode' and input data from your own burn test.

Candle Burn Time Estimator

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Estimated Burn Time
-- hours
Est. Rate
-- g/h
Please enter valid numbers

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Article

Candle Burn Time Estimator | Calculate Wax Consumption & Burn Hours for DIY Candles

Estimate the total burn time of your handmade candles with this easy-to-use calculator. Perfect for hobbyists and professional candle makers, this tool helps you predict a candle's lifespan based on its weight, wax type, and wick size, or by using your own precise burn test data. Get consistent results and label your products with confidence.

💡 Tool Overview

  • Dual Calculation Modes: Choose between 'Standard Mode' for a quick estimate based on common materials (Paraffin, Soy, Beeswax, Gel) and wick sizes, or 'Calibration Mode' for highly accurate predictions using your own test burn results.
  • Real-Time Results: The estimated burn time and wax consumption rate (in grams per hour) are calculated and updated instantly as you input or change your values.
  • Material-Specific Factors: The standard calculator uses different consumption multipliers for various wax types, ensuring more realistic estimates for different candle formulas.
  • Custom Rate Calculation: The Calibration Mode allows you to determine the exact consumption rate of your specific wax, fragrance, and wick combination, empowering you to create precise product specifications.

🧐 Frequently Asked Questions

Q. Why is my actual burn time different from the 'Standard Mode' estimate?

A. The 'Standard Mode' provides a general estimate based on average material properties. Factors like fragrance oil percentage, dye, ambient temperature, and drafts can all affect the actual burn rate. For the most accurate results, use the 'Calibration Mode' with data from a test burn of your specific candle formula.

Q. How do I perform a burn test for 'Calibration Mode'?

A. Create a test candle with your final formula. Weigh it precisely before lighting. Burn it for a set period (e.g., 2-4 hours is a good standard). Extinguish the flame and let the candle cool completely. Weigh it again. The difference in weight is the 'Consumed Wax', and the duration you burned it is the 'Test Burn Time'. Enter these two values into the calculator for a highly accurate rate.

📚 A Deeper Dive into Burn Rates

A candle's burn rate, measured in grams per hour, is the key to its longevity and performance. This rate isn't just about the wax and wick; it's a delicate balance. A wick that's too large for the container will create a deep melt pool, consuming wax too quickly and potentially producing soot. Conversely, a wick that's too small will "tunnel," leaving a wall of unused wax around the edge and wasting fuel. Professional candle makers conduct numerous burn tests to find the perfect combination of wax, wick, and vessel diameter. The 'Calibration Mode' in this tool allows you to leverage the same testing principles to perfect your own creations and achieve a clean, efficient burn.