Enter the candle weight and the burn rate into the calculator to determine the burn time of the candle. This calculator helps you estimate how long a candle will last.

Candle Burn Time Formula

The following formula is used to calculate the candle burn time.

BT = W / BR

Variables:

  • BT is the candle burn time (hours)
  • W is the weight of the candle (grams)
  • BR is the burn rate of the candle (grams per hour)

To calculate the candle burn time, divide the weight of the candle by the burn rate.

What is Candle Burn Time?

Candle burn time is the duration for which a candle can burn before it is completely consumed. It is dependent on the weight of the candle and the rate at which the wax is burned. This measurement is useful for consumers to understand how long they can expect their candles to last under normal conditions.

How to Calculate Candle Burn Time?

The following steps outline how to calculate the Candle Burn Time.


  1. First, determine the weight of the candle (W) in grams.
  2. Next, determine the burn rate of the candle (BR) in grams per hour.
  3. Next, gather the formula from above = BT = W / BR.
  4. Finally, calculate the Candle Burn Time (BT) in hours.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Candle Weight (W) = 200 grams

Burn Rate (BR) = 10 grams per hour