Free tools for smarter buying decisions
Use these quick calculators and utilities when a product decision depends on price, size, energy use, capacity, or everyday fit.
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Smart Plug Energy Cost Calculator
Estimate what a device costs to run before you decide whether energy monitoring or scheduling is worth paying for.
Estimated monthly cost: $1.94
Estimated yearly cost: $23.65
Estimated yearly cost: $23.65
Formula: watts divided by 1,000, multiplied by hours, days, and your electricity rate. Use your local currency rate; the math works the same.
Useful tools by buying task
Use tools with active guides
The calculator above pairs especially well with smart plugs and small appliance decisions. For product shortlists, start with the guides below.
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