Electricity bill calculator for QLD, NSW and VIC
Free calculator, input your personal household details and discover your estimated annual cost, usage, usage rate and supply charge.
Last updated: July 2026 · Electricity: AER benchmarks · Data source review: annually each JulyWhat drives an electricity bill
Two things move the estimate the most: how many people live in the home, and the suburb's climate zone. A bigger household runs more appliances and needs more hot water, so usage scales up with occupants. Climate zone matters because a suburb that needs more heating in winter or more cooling in summer carries a heavier load than a mild-climate suburb with the same number of people in it.
Tariffs add a second layer on top of usage. Each electricity network has its own regulated rate per kilowatt-hour and daily supply charge, so two suburbs with identical usage can still land on different bills depending on which network serves them. Units are estimated lower than houses, reflecting a smaller conditioned floor area to heat and cool.
This is a benchmark estimate, not a retailer quote. It uses the Australian Energy Regulator's published benchmark usage by household size and climate zone, not your actual meter reading, appliances or plan. Use it to compare suburbs and household sizes on a consistent basis, then get an actual quote from a retailer before you commit to a plan.
Frequently asked questions
What does the electricity bill calculator include?
It estimates your annual, quarterly and monthly electricity cost from your suburb's climate zone and your household size. It applies the same AER benchmark usage and each network's 2026-27 regulated tariff used across SuburbCost's suburb reports. It does not include solar feed-in credits, off-peak or time-of-use plans, or appliance-level usage, since those vary by retailer and plan, not by suburb.
How accurate is it?
It's a benchmark estimate, not a retailer quote. The underlying usage figures come from the AER's Simple electricity benchmarks (seasonal kWh by household size and climate zone), costed at the 2026-27 regulated flat tariff for the suburb's electricity network (the Default Market Offer in south-east Queensland and New South Wales, the Victorian Default Offer in Victoria, and the regional Queensland tariff elsewhere in Queensland). Your actual bill depends on your retailer, plan, appliances, heating and cooling habits, and whether you have solar. Use this figure to compare suburbs and household sizes, not as a bill quote.
Which states does the calculator cover?
Queensland, New South Wales and Victoria. It uses each state's AER climate zone benchmarks and the regulated tariff for the suburb's own electricity network, since networks charge different rates per kWh and different daily supply charges.
Why do bills vary so much between suburbs and households?
Household size and climate zone are the two biggest factors. A bigger household uses more electricity, especially for heating and cooling, so the AER benchmark scales up with occupants. Climate zone matters because a suburb in a hotter or colder zone needs more heating or cooling load than a mild-climate suburb, even for the same household size. QLD and NSW also charge different tariff rates, which shifts the dollar figure even where usage is similar.