Energy & Home Calculators
Household energy and utility calculators for electricity costs, AC usage, solar savings, EV charging, and water use.
What these calculators help with
Energy & Home calculators help estimate household energy costs, appliance usage, solar savings, EV charging costs, and water usage.
Use these calculators when reviewing utility bills, comparing household equipment choices, or planning simple energy and water usage scenarios.
Results are estimates for planning and education. Actual costs depend on tariffs, usage habits, climate, equipment efficiency, local prices, maintenance, and provider rules.
Electricity Cost Calculator
Estimate appliance energy use and electricity cost from watts, daily hours, price per kWh, and days used.
Air Conditioner Running Cost Calculator
Estimate AC energy use and running cost using power, runtime, electricity price, days, and a simple efficiency adjustment.
Solar Panel Savings Calculator
Estimate annual solar energy production, annual savings, and simple payback period from basic system assumptions.
EV Charging Cost Calculator
Estimate EV charging cost from battery size, charge added, electricity price, and charging efficiency.
Water Usage Cost Calculator
Estimate total water used and water cost using metric litres or US gallons.
Monthly Utility Cost Calculator
Estimate monthly utility cost from electricity, water, gas, internet, and other utilities.
Appliance Annual Energy Cost Calculator
Estimate annual appliance energy use and cost from watts, hours per day, electricity price, and days.