Kiln Electricity Cost Calculator
Calculate energy consumption in kWh and electricity cost per kiln firing based on kiln wattage, firing duration, and your electricity rate.
Inputs
W
hrs
$/kWh
Results
Energy Used
33.6 kWh
Cost Per Firing
$4.37
Monthly (4 Firings)$17.48
Peak Demand6 kW
Amperage (240V)25 A
How to Use This Calculator
- Enter your kiln's rated wattage from the nameplate or manual (common hobby kilns are 4000–8000 W).
- Enter the total firing duration in hours from start to shut-off, not including cooling time.
- Enter your electricity rate in dollars per kWh — check your utility bill (US average ~$0.12–0.16/kWh).
- Read the total energy used in kWh and the cost per firing in dollars.
- Use the monthly cost estimate (4 firings/month) for studio budgeting.
- Note the amperage output to verify your electrical circuit is sized correctly for the kiln.
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