AC Electricity Cost
Estimate how much an air conditioner adds to your electricity bill.
13 tools
Home calculators
Choose the question you actually want answered. Each page includes plain-language input examples, a result breakdown, assumptions, Pro scenario comparison and related tools.
Appliance Running Cost
Estimate the monthly and annual electricity cost of any appliance.
Solar Savings
Estimate solar generation, bill savings and a simple payback period.
Battery Backup Runtime
Estimate how long a battery or inverter can support a given electrical load.
Paint Calculator
Estimate paint litres/gallons needed from wall area, coats and coverage.
Flooring Calculator
Estimate floor area, waste allowance, packs and approximate material cost.
Tile Calculator
Estimate how many tiles you need, including a cutting/waste allowance.
Concrete Calculator
Estimate concrete volume for a slab or rectangular pour.
Room Area
Calculate floor area and perimeter from room length and width.
Moving Cost
Build a simple moving budget from travel, labour, supplies and fixed charges.
Water Tank Fill Time
Estimate how long it takes to fill a tank from a measured flow rate.
Phone Charging Cost
Estimate how little—or how much—charging a phone costs over a year.
EV Range
Estimate electric-vehicle driving range from usable battery energy and efficiency.