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Calcimator

Cone Equivalent Calculator

Convert pyrometric cone numbers to temperatures in Fahrenheit and Celsius for oxidation and reduction atmospheres.

Inputs

Results

Temperature

2,232 F

Temperature

1,222 C

Nearest Standard Cone6
How to Use This Calculator
  1. Enter the cone number you want to convert — use negative values for low-fire cones (e.g., -6 for cone 06).
  2. Select the kiln atmosphere: 1 for oxidation (electric kilns) or 2 for reduction (gas kilns).
  3. Read the resulting temperature in both Fahrenheit and Celsius.
  4. Note the nearest standard cone if your input falls between published cone values.
  5. Use the temperature output to set your kiln controller or compare with pyrometer readings.

How the result changes with Cone Number

Cone NumberTemperatureTemperature
-181,319 F715 C
-9.41,598 F870 C
1.42,079 F1,137 C
102,345 F1,285 C

What each input means

Cone Number
Pyrometric cone number. Use negative values for low-fire cones (e.g., -6 for cone 06). Range: -22 (lowest) to 14 (highest).
Atmosphere
Kiln atmosphere: 1 = Oxidation (electric kilns, clear colors), 2 = Reduction (gas kilns, ~30F lower peak).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Cone Number = 6, Atmosphere = 1 = 2 input(s) provided
  2. Calculate Temperature
    Temperature
    2232 = 2232
  3. Calculate Temperature
    Temperature
    1222 = 1222
  4. Calculate Nearest Standard Cone
    6 = 6

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