Your energy costs, made clear.
Free Australian calculators for air conditioning, solar panels, home batteries and EV charging. No signup, no sales calls — just transparent estimates.
Choose a calculator
Start with the appliance or upgrade you are considering. Each tool uses editable inputs so you can compare scenarios.
❄️ Air conditioner running costs
Estimate electricity cost per day, month and year.
Calculate →🔋 Solar battery savings
Estimate annual bill savings and simple payback.
Calculate →☀️ Solar panel payback
Compare solar self-use, exports and upfront cost.
Calculate →🚙 EV charging costs
Estimate home charging cost including charging losses.
Calculate →How SaveWise estimates work
- Choose a free energy calculator.
- Enter your own electricity rates and household details.
- Review the estimated costs, savings and assumptions before making a decision.
All estimates are indicative. Actual savings depend on your usage, tariff, equipment and installation costs.
Built for Australian households
Electricity rates and solar feed-in tariffs vary by retailer, plan, location and time. Our calculators let you enter your own values instead of assuming a universal Australian tariff.
How to get better estimates
Use figures from your electricity bill, product specifications or measured consumption. Treat results as planning estimates and check quotes, tariffs and incentive eligibility independently.
Australian home energy guides
Understand the assumptions behind your results and make more informed comparisons.