Calculatree

Electricity Bill Calculator

See your monthly and annual electricity cost from kWh used and your rate.

Inputs

Updates live as you type

How it works

Your electric bill is mostly usage multiplied by your per-kWh rate, plus a fixed service charge. Knowing your kWh and rate makes it easy to see what a new appliance, an EV, or a thermostat change does to the monthly total.

Frequently asked questions

How do I find my rate per kWh?

Divide the energy portion of a recent bill by the kWh used, or check your utility’s rate schedule. Many areas also have tiered or time-of-use rates, so your effective rate can vary by season and time of day.

Related calculators

Solar Savings CalculatorEstimate the payback period and lifetime savings of a solar system.EV vs. Gas CalculatorCompare the annual fuel cost of an electric car against gasoline.Fuel Cost CalculatorEstimate the fuel cost of a trip from distance, MPG, and gas price.Percentage CalculatorWork out a percentage of a number and percentage change.