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Local calculation
Entered values never leave your device.
Entered values never leave your device.
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How the calculation works
Estimate electricity use and operating cost over a selected period. The tool converts the form units and presents the result using readable engineering notation.
kWh = W × h × dni / 1000
Example
A 60 W soldering iron used 1 hour daily for 30 days consumes 1.8 kWh.
How to interpret the result
- The estimate uses the stated power and operating time.
- Regulated devices and standby modes may draw variable power.
- Enter the complete unit price you use for your own comparison.
Limitations and safe use
The result uses a simplified model. Check tolerance, temperature, absolute ratings and the component datasheet.
FAQ
Is the result saved?
The latest result may be stored locally in this browser, but it is not sent to LutujTo.
Can I use the result in a project?
Yes, but select a real component with margin and confirm its ratings in the datasheet.