Calculators
Estimate electricity, gas, and internet spend in minutes. Update usage assumptions and see how bundled plans or seasonal changes impact your bills.
Electricity
Estimate appliance costs, household charging, and seasonal electricity usage
Electricity Cost
Project quarterly and annual kWh costs using supply and usage rates
Use CalculatorAir Conditioner Running Cost
Estimate cooling costs from wattage, run time, and electricity tariffs
Use CalculatorHeater Running Cost
Model electric heater costs during winter or overnight use
Use CalculatorEV Charging Cost
Calculate home charging costs for battery top-ups and full charges
Use CalculatorPool Pump Cost
Check how much daily pool filtration adds to your electricity bill
Use CalculatorGas
Estimate gas heating, hot water, and overall household MJ usage
Gas Cost
Calculate MJ usage, daily supply charges, and total gas spend
Use CalculatorGas Heating Cost
Estimate space-heating costs from heater run time and gas tariffs
Use CalculatorHot Water Cost
Estimate gas hot water costs from household usage and temperature rise
Use CalculatorGas Usage
Combine cooking, heating, and hot water demand into one MJ estimate
Use CalculatorInternet
Compare internet value, speed needs, bandwidth demand, and connection info
Internet Value
Compare NBN & fixed wireless plans by speed tier and price
Use CalculatorInternet Speed Test
Run a clean speed test UI with download, upload, ping, and jitter states
Use CalculatorNBN Availability Checker
Estimate NBN availability and the internet speed tier your household should compare first
Use CalculatorStreaming Bandwidth
Estimate Mbps demand and monthly data use for streaming and calls
Use CalculatorWhat Is My IP
Check your current public IP address and browser network details
Use CalculatorFAQ
Calculator FAQs
How accurate are the compareus.com.au calculators?
They are built to give planning estimates based on the tariff, usage, and appliance assumptions you enter. Your actual bill can differ if a retailer uses controlled load, time-of-use pricing, or fixed fees not included in the estimate.
Which calculator should I use first?
Start with the calculator closest to your decision. Use electricity or gas bill estimators for switching research, and use appliance or bandwidth tools when you are trying to explain a specific cost driver.
Can I use these calculators before switching providers?
Yes. They are designed to help you estimate likely spend before you compare plans, negotiate with your current provider, or decide whether a bundle is worthwhile.