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WattWise
Free calculators to estimate electricity costs
WattWise helps you understand exactly how much electricity your appliances use and what they cost to run. Choose from 15 free calculators covering everything from AC units and space heaters to washers, dryers, and pool pumps. Enter your usage details and local electricity rate, and get instant cost breakdowns — daily, monthly, and yearly.
Top comment
Hey everyone! I built WattWise because I was shocked by my electricity bill and had no idea which appliances were costing me the most. WattWise gives you 15 free calculators that let you plug in your usage and see exactly what each appliance costs to run — daily, monthly, and yearly. It covers everything from AC and heating to pool pumps and EV chargers. No signups, no ads, just quick answers. Would love to hear what you think!
About WattWise on Product Hunt
“Free calculators to estimate electricity costs”
WattWise was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #160 on the daily leaderboard. WattWise helps you understand exactly how much electricity your appliances use and what they cost to run. Choose from 15 free calculators covering everything from AC units and space heaters to washers, dryers, and pool pumps. Enter your usage details and local electricity rate, and get instant cost breakdowns — daily, monthly, and yearly.
On the analytics side, WattWise competes within Productivity and Home — topics that collectively have 820.5k followers on Product Hunt. The dashboard above tracks how WattWise performed against the three products that launched closest to it on the same day.
Who hunted WattWise?
WattWise was hunted by Jonathan Zames. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of WattWise including community comment highlights and product details, visit the product overview.