“How much is this thing costing me?” is a question that’s surprisingly hard to answer just by staring at your utility bill — it lumps every appliance in the house into one total. Our electricity cost calculator isolates just the one you’re wondering about:
- Instant — enter the wattage, hours used per day, and your rate, and the daily, monthly, and yearly cost update as you type.
- Shareable — your inputs live in the link, so you can send an exact result to a roommate, partner, or landlord.
- Honest — we show the daily figure right next to the monthly and yearly ones, because a small-looking daily number can add up to a surprising annual total.
- Private — the math runs in your browser. We never see your numbers.
Try it with your own appliance’s wattage and your real electricity rate, and if you write about home energy use, the calculator is embeddable on your own site with one iframe.