01
Formula
Kilowatt-hours = watts ÷ 1,000 × hours.
Cost of one firing = kilowatt-hours × your price. A run of firings multiplies that cost. The kiln firing cost calculator does not add a demand charge.
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Kiln firing cost calculator for electric kiln energy
This kiln firing cost calculator multiplies kiln watts by hours, divides by 1,000 for kilowatt-hours, and prices that energy at the rate you type. The kiln calculator line repeats it for the number of firings you enter. It is electricity only, not a cone chart.
One firing
$6.40
Energy40.00 kWh
All firings$25.60
Wattage5,000 W
Planning estimate from the numbers you enter. Coverage, density, waste and price are assumptions, not a supplier quote or an engineering specification.
How it works
One firing is watts times hours, then your rate.
A 5,000 watt kiln run for 8 hours uses 40.00 kilowatt-hours. At $0.16 per kilowatt-hour one firing is $6.40. Four firings are $25.60. Those are the fields already filled in. Elements do not draw the nameplate watts for every minute of a firing, and a kiln that cycles the relays uses less than a continuous full-power estimate. Treat this as the upper planning bill unless you have measured the kiln. Gas kilns are a different fuel. Furniture, glaze, and the work itself are not in the energy line. The price per kilowatt-hour is yours.
02
Example
5,000 watts, 8 hours, $0.16 per kilowatt-hour, 4 firings.
One firing is 40.00 kilowatt-hours and $6.40. Four firings are $25.60. Shorten the hours if the kiln only holds peak temperature for part of the cycle and you want a lower estimate.
03
Tips
Nameplate watts are the high side.
A measured kilowatt-hour reading from one firing is better than the nameplate. If you have that reading, set watts to 1,000 and hours to the kilowatt-hours, and the kiln calculator will price the measured energy.
04
Equipment
The kiln is the machine.
Dengaro arranges equipment financing for a kiln. The firing bill is not sent as a loan amount.
Important questions
Know what to expect.
Is $0.16 my electric rate?+
It is a placeholder. The kiln firing cost calculator uses the price per kilowatt-hour you type. Check the utility bill before you treat the result as this month’s cost.
Does a kiln calculator include gas?+
This one is electric watts. A gas firing needs the fuel’s cost and the burner input, which are not these fields.
Why might the bill be lower than the result?+
Relays cycle. The elements are not on at full power for every hour you typed. The result is a full-power estimate for those hours.
Are cones or temperatures in the cost?+
No. Hours stand in for the schedule. A hotter firing is more expensive here only if it takes more hours or more watts.
Financing built into the sale