Enter both values to calculate kilowatt hours
Watts (W)
Hours (h)
Kilowatt Hours (kWh)
Result will appear here
Understanding Energy vs Power
The relationship between kilowatt hours and watts involves time:
- Energy (kWh) = Power (W) × Time (h) ÷ 1000
- Power (W) = Energy (kWh) × 1000 ÷ Time (h)
For Your Electric Bill
Understanding these relationships helps you:
- Estimate costs - Know how much devices cost to run
- Size solar panels - Match production to consumption
- Compare appliances - Understand energy efficiency ratings
- Track usage - Break down your monthly bill
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