Work out kiln firing schedule instantly with clear inputs, formula shown and shareable results.
Heating time is the temperature rise divided by the ramp rate, and natural cooling is slower, modelled here at about 60% of the heating rate. Cooling is the longest part of the cycle and cannot be rushed, since opening a kiln above about 200 C thermal shocks the glaze.
Heating time
hours = (target - start temperature) / ramp rate
Total cycle
total = heating + soak + cooling time
hours = (target - start temperature) / ramp rate. Heating time is the temperature rise divided by the ramp rate, and natural cooling is slower, modelled here at about 60% of the heating rate.
Cooling is the longest part of the cycle and cannot be rushed, since opening a kiln above about 200 C thermal shocks the glaze.
Enter target temperature, ramp rate, soak at temperature, starting temperature. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.