Standby Power Cost Calculator
Standby W × 8,760 hr/yr × $/kWh ÷ 1000 = annual phantom-load cost.
- Total standby load
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- Daily kWh
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- Annual kWh
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- Annual cost
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Typical phantom-load devices — TV with HDMI-CEC 3 W, cable box 25 W, console in standby 8 W, phone charger plugged-in 0.5 W, instant-on coffee machine 4 W. Smart plugs / switched strips eliminate most of it.
About this tool
Standby Power Cost Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
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