Standby power calculator
What do plugged-in devices cost while doing nothing?
Estimate the electricity and money used by routers, televisions, consoles, chargers and other devices left on standby.
✓ Instant estimate · ✓ No sign-upA complete example is already filled in. Change only the numbers you know.
Exact settings (optional)Average example values are used until you replace them.
03 · Every number explained
What the result means
Every result and starting value is shown below, with no hidden items.
What counts as standby power?
What counts as standby power?
Standby power is the small continuous draw while a device appears off but remains ready. The estimate uses the number of devices, their standby level, idle time and your electricity price. CO₂ is only a broad comparison because the real grid varies by place and time.
Methodology and limits →Quick answers
How do I know standby watts?
Check the manual or measure the device with a plug-in power meter.
Should I unplug every device?
Prioritize clusters with several watts each, long idle periods and easy-to-reach power strips.
Do phone chargers use much without a phone?
Modern chargers usually use very little, so measure before changing a useful routine.
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