Ceramic firing schedule duration calculator

Calculate program [segment,ramp hours,hold hours,cumulative hours] and total nominal duration with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use program [segment,ramp hours,hold hours,cumulative hours] and total nominal duration to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Initial temperature (°C)
20
User-supplied program [target °C,absolute ramp °C/hour,hold hours]
[[600,100,1],[1200,150,0.5]]
Program [segment,ramp hours,hold hours,cumulative hours]
[[1,5.8,1,6.8],[2,4,0.5,11.3]]
Total nominal duration (hours)
11.3

Try another scenario

Initial temperature (°C)
30
User-supplied program [target °C,absolute ramp °C/hour,hold hours]
[[600,100,1],[1200,150,0.5]]
Program [segment,ramp hours,hold hours,cumulative hours]
[[1,5.7,1,6.7],[2,4,0.5,11.2]]
Total nominal duration (hours)
11.2
Calculation method

Calculation method

Program [segment,ramp hours,hold hours,cumulative hours]

Absolute target−previous temperature divided by positive supplied ramp rate; sum holds.

Total nominal duration (hours)

Sum ramp and hold durations; actual kiln tracking may differ.

Symbols and units
a
Initial temperature (°C)
b
User-supplied program [target °C,absolute ramp °C/hour,hold hours]

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Duration arithmetic for an entirely user-supplied kiln program; no safe schedule or material suitability is recommended. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Initial temperature (°C): minimum None, maximum 1000000000000.0.
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