Engineering CalculatorLive calculator
Universal Appliance Power Calculator
Use this calculator for any appliance with known wattage and usage hours.
Universal Appliance Calculator
Use this for any device when wattage and usage time are known.
Input Details
Fill what you know. If a value is unknown, keep the practical default and verify the nameplate later.
How to use this result
Monthly units = watts × hours/day × days/month × quantity ÷ 1000. Use actual nameplate wattage for better accuracy.
This is a preliminary planning estimate. For certified audits, use site measurement and nameplate readings.
FAQ
Can I calculate any device?
Yes, if you know approximate wattage and usage time.
What if appliance cycles on/off?
Use average wattage or duty-cycle adjusted wattage instead of full rated wattage.
Universal tool tip
Use this page for any device not listed elsewhere. Enter wattage, quantity and actual runtime for best results.
Accuracy note
The result is a planning estimate. Use nameplate wattage, measured runtime and current tariff for professional-level accuracy.