Electricity Cost Calculator Australia
kWh + state rate → estimated bill.
Last updated: January 2025 · Built for the 2024–25 financial year
Inputs
Results
Usage cost
$148.50
Supply cost
$99.00
Estimated total (ex-GST)
$247.50
Results are estimates only. For financial advice, consult a licensed adviser.
Overview
Cost per appliance, per day, per year
Australian electricity tariffs vary 25-45 c/kWh depending on state, retailer and time-of-use plan. NSW and SA sit at the high end; QLD and TAS are cheaper. Demand tariffs add a peak-kW charge on top of usage.
Knowing the kWh draw of a device — printed on the compliance sticker or measured with a $25 plug-in meter — is the fastest way to find energy hogs (often pool pumps, second fridges and old tumble dryers).
Formula
Running cost
kWh = watts × hours / 1000 cost = kWh × tariff(c/kWh) / 100
Typical appliance draw
| Appliance | Power |
|---|---|
| LED bulb | 8-12 W |
| Laptop | 30-65 W |
| Fridge (300 L) | 120-150 W avg |
| Reverse-cycle AC (2.5 kW) | 600-900 W in heating mode |
| Electric kettle | 2,200 W (short bursts) |
| Pool pump | 1,000-1,500 W |
Pro tips
- •Switch off standby — the average house wastes $100/yr.
- •Run dishwashers and washing machines on off-peak tariffs.
- •Solar self-consumption is now worth ~25 c/kWh saved.