{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-06-02T23:18:39.401Z","discovery":{"catalog":"https://toptool.io/tools.json","llmsTxt":"https://toptool.io/llms.txt","sitemap":"https://toptool.io/sitemap.xml"},"relatedTools":[{"slug":"salary-converter","name":"Salary Converter","url":"https://toptool.io/salary-converter"},{"slug":"fuel-cost-calculator","name":"Fuel Cost Calculator","url":"https://toptool.io/fuel-cost-calculator"},{"slug":"gpa-calculator","name":"GPA Calculator","url":"https://toptool.io/gpa-calculator"},{"slug":"compound-interest-calculator","name":"Compound Interest Calculator","url":"https://toptool.io/compound-interest-calculator"},{"slug":"age-calculator","name":"Age Calculator","url":"https://toptool.io/age-calculator"},{"slug":"bmi-calculator","name":"BMI Calculator","url":"https://toptool.io/bmi-calculator"},{"slug":"date-difference","name":"Date Difference Calculator","url":"https://toptool.io/date-difference"},{"slug":"tip-calculator","name":"Tip Calculator","url":"https://toptool.io/tip-calculator"}],"kind":"utility","slug":"electricity-cost-calculator","name":"Electricity Cost Calculator","description":"Calculate your electricity cost from watts, usage hours and rate per kWh — see daily, monthly and yearly estimates instantly.","longDescription":"Enter the wattage of any appliance or device, how many hours per day you use it, your local electricity rate per kilowatt-hour, and the number of days to calculate for. The tool instantly shows daily cost, monthly cost, yearly cost, and total kWh consumed. Useful for budgeting utility bills, comparing energy-efficient appliances, estimating mining rig power expenses, or figuring out how much that space heater actually costs. All math runs in your browser — nothing is sent to a server. Formula: kWh = (watts × hours) / 1000; cost = kWh × rate.","category":"calc","categoryName":"Calculators","keywords":["electricity cost calculator","electricity cost calculator online","electric bill calculator","power consumption calculator","kwh calculator","energy cost calculator","watt to cost calculator","appliance electricity cost","electricity usage calculator","utility bill estimator","power cost estimator","electricity rate calculator","energy bill calculator"],"badge":"Calculator","url":"https://toptool.io/electricity-cost-calculator","inputs":[{"type":"number","key":"watts","label":"Watts (W)","defaultValue":100,"min":0,"step":1,"help":"Power consumption of the appliance in watts."},{"type":"number","key":"hours-per-day","label":"Hours per day","defaultValue":8,"min":0,"max":24,"step":0.5,"help":"How many hours per day the device is running."},{"type":"number","key":"rate-per-kwh","label":"Rate per kWh ($)","defaultValue":0.12,"min":0,"step":0.01,"help":"Your electricity rate in dollars per kilowatt-hour. US average ≈ $0.12."},{"type":"number","key":"days","label":"Days","defaultValue":30,"min":1,"step":1,"help":"Number of days to calculate for (default 30)."}],"outputs":[{"key":"dailyKwh","label":"Daily kWh"},{"key":"totalKwh","label":"Total kWh (for period)"},{"key":"dailyCost","label":"Daily cost"},{"key":"monthlyCost","label":"Monthly cost (30 days)"},{"key":"yearlyCost","label":"Yearly cost (365 days)"}],"invocation":{"webUi":"https://toptool.io/electricity-cost-calculator","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}