WattCost

WattCost is a simple and intuitive electricity cost calculator designed to help you easily estimate and manage the running costs of your household appliances. Whether you are managing home expenses, renting a room, living in a dorm, or running an office, WattCost helps you visualize your energy footprint and find where you can save on utility bills. How it Works: 1. Enter your appliance's power (in Watts or Kilowatts). 2. Input the hours used per day. 3. Enter your local price per kWh and select your currency. 4. Instantly view the estimated daily, monthly, and yearly costs! Key Features: • Dual Unit Support: Seamlessly switch between Watts (W) and Kilowatts (kW). • Multiple Currencies: Supports USD, CNY, EUR, GBP, JPY, HKD, and more. • Cumulative Tracking: Add multiple appliances to your "My Appliances" list to calculate total household power consumption and monthly costs. • Quick Reference Guide: Not sure how many watts your device uses? Tap on our built-in typical ranges for common electronics (such as laptops, ACs, fridges, water heaters) to auto-fill estimates instantly. • CSV Export: Easily export your appliance list and calculations to a CSV file for your personal records. • 100% Offline & Private: No accounts, no sign-ups, and no internet required. All data is saved strictly on your local device. Take control of your electricity bills today with WattCost! (Note: This tool provides rough calculations for estimation purposes only. Actual electricity bills may vary depending on your local utility provider and device efficiency.)