4 free tools
Utilities & Bills calculators
Explore utilities & bills tools with adjustable inputs, formulas, assumptions and worked examples. Choose a calculator below to see its method and limits.
Electricity Cost
Calculate the monthly cost of running any electrical device.
Open calculator →Discount Calculator
Calculate sale price after discount and the exact amount you save.
Open calculator →Appliance Energy Cost
Calculate yearly cost of running any appliance.
Open calculator →Water Bill Estimator
Estimate monthly water cost from household usage.
Open calculator →