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Calcimator

Smoker Fuel Calculator

Calculate charcoal and wood chunk amounts needed based on cook time, smoker type, and ambient temperature.

Inputs

hours
°F

Results

Charcoal Needed

30 lbs

≈ 7 bags of sugar

Wood Chunks

4 lbs

≈ 16 sticks of butter

Charcoal Bags (20 lb)2
Charcoal Burn Rate3 lbs/hr
Est. Charcoal Cost$36.00
Est. Wood Cost$10.00
How to Use This Calculator
  1. Enter the total cook time in hours.
  2. Select your smoker type (offset, kettle, ceramic, etc.).
  3. Enter the current ambient temperature, which affects fuel consumption.
  4. The calculator returns total charcoal needed, number of 20-lb bags, wood chunks for smoke, hourly burn rate, and estimated cost.
  5. Load the charcoal and wood ahead of the cook to avoid running out mid-session.

How the result changes with Cook Time

Cook TimeCharcoal NeededWood Chunks
3.39.9 lbs3.3 lbs
9.0527.2 lbs4 lbs
1648 lbs4 lbs
2266 lbs4 lbs

What each input means

Cook Time
Total expected cook time in hours.
Smoker Type
1 = Offset (3 lbs/hr — large firebox), 2 = Kamado (1.5 lbs/hr — insulated ceramic), 3 = Kettle (2 lbs/hr).
Ambient Temperature
Outside air temperature. Colder weather increases fuel consumption (~2% per degree below 70°F).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Cook Time = 10, Smoker Type = 1, Ambient Temperature = 70 = 3 input(s) provided
  2. Calculate Charcoal Needed
    Charcoal Needed
    30 = 30
  3. Calculate Wood Chunks
    Wood Chunks
    4 = 4
  4. Calculate Charcoal Bags
    Charcoal Bags
    2 = 2
  5. Calculate Charcoal Burn Rate
    Charcoal Burn Rate
    3 = 3

Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.

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