FairWatt

Take complete control of your EV charging expenses at home with FairWatt—the straightforward, privacy-focused charge tracker and utility cost calculator designed for electric vehicle owners. Stop guessing how much plugging in actually adds to your monthly power bill. Whether you live in a shared home with roommates, manage split utility accounts, or simply want full visibility into your energy footprint, FairWatt makes tracking charging costs accurate and completely hassle-free. KEY FEATURES: • ACCURATE CHARGE COST CALCULATOR Calculate exact charging session costs based on your specific battery capacity, charging efficiency factor (wall-to-battery losses), and peak or off-peak utility electricity rates. • LOG & TRACK CHARGING HISTORY Keep a clear, detailed history of all your charging sessions. Review total kWh drawn, exact dollar amounts spent, and aggregate historical totals across billing cycles. • FAIR UTILITY BILL SPLITTING Split household energy costs with precision. FairWatt calculates and isolates EV power consumption from general household electricity, making roomie reimbursements fast, clear, and fair. • EXPORT & SHARE RECEIPT CARDS Generate beautiful, clean summary receipt cards for individual charging sessions or billing cycles to share directly with housemates or keep for personal records. • PRIVACY-FIRST & UNCLUTTERED No ads, no subscriptions, no account creation, and no tracking. All your data stays locally on your device. FairWatt delivers the clarity you need to charge smart and track every dollar.