Electricity Cost Calculator
Estimate daily, monthly and annual energy use and electricity cost for an appliance.
Open calculatorFree tools with visible assumptions
Home cost calculators
Practical tools for energy, materials and household costs. Enter your own measurements and rates for a transparent estimate.
Energy & Electricity
Estimate electricity use and costs with your own rate and usage pattern.
Air Conditioner Electricity Cost
Compare an air conditioner’s estimated running cost with and without a duty-cycle adjustment.
Open calculatorPC Power Cost Calculator
Estimate a desktop computer’s electricity use from power, time and your local tariff.
Open calculatorHome Appliances
Compare the energy used by appliances and household equipment.
Appliance Energy Calculator
Add several appliances to compare estimated energy use and monthly cost.
Open calculatorRenovation & Materials
Plan quantities and early project budgets before requesting local quotes.
Paint Calculator
Estimate wall area and the amount of paint to buy after openings, coats and waste.
Open calculatorTile Calculator
Calculate room coverage and a practical tile count with an optional waste allowance.
Open calculatorFlooring Calculator
Estimate room coverage and the number of flooring packages to purchase.
Open calculatorRoom Area Calculator
Find area and, where applicable, perimeter for common room shapes.
Open calculatorHome Renovation Cost Estimator
Build a transparent preliminary estimate from area, unit rates and additional costs.
Open calculatorWater & Utilities
Estimate water use and related costs using a rate you provide.
Water Usage Calculator
Estimate daily and monthly water use and its cost from a flow rate you provide.
Open calculator