What changes the answer
A low headline usage rate can be offset by the supply charge or a different time band. Solar value depends on when electricity is used, not only annual generation.
AUAUD · en-AU
Australia home calculators
Compare supply charges, usage rates, solar self-consumption and appliance labels with Australian inputs.
What people mix up
Building work is metric, while product packs and property descriptions can still create conversion mistakes. Project calculators use explicit mm, m, m² and m³ paths.
Pain points covered
Decisions this pack helps you check
Compare daily supply and energy charges on the same period.
Use the Energy Rating Label's annual kWh with a personal rate.
Test solar self-consumption before treating export as equal-value energy.
Estimate metric concrete, paint and flooring quantities.
Available for Australia
14 relevant calculators
Currency symbols are presentation only; enter the current plan, label or project values that apply to you.
Working shownEnergy bills & appliancesGlobal Appliance Electricity Cost Calculator
Estimate appliance energy and cost in your own currency from label watts, runtime and your electricity rate
Open calculator Working shownEnergy bills & appliancesEffective Electricity Bill Rate CalculatorSeparate fixed charges from energy charges and calculate both all-in and usage-only bill rates
Open calculator Working shownEnergy bills & appliancesElectricity Bill Change ExplainerExplain why an electricity bill changed by separating billing days, daily usage, effective usage rate and fixed charges
Open calculator Working shownEnergy bills & appliancesTime-of-Use Electricity Plan ComparisonCompare peak and off-peak energy charges with a flat-rate plan using the same electricity use
Open calculator Working shownEnergy bills & appliancesHome EV Charging Cost CalculatorEstimate wall energy, charging cost and cost per distance with visible charging losses
Open calculator Working shownEnergy bills & appliancesHeat Pump vs Resistance Heating CalculatorCompare electricity needed for the same useful heat using an editable heat-pump COP
Open calculator Working shownEnergy bills & appliancesAppliance Label Annual Cost CalculatorTurn the annual kWh on an official appliance label into annual and multi-year energy cost
Open calculator Working shownSolar, battery & backupSolar Self-Consumption Value CalculatorSeparate solar electricity used at home from exports and value each with its own rate
Open calculator Working shownSolar, battery & backupHome Battery Energy-Shift CalculatorEstimate deliverable shifted energy and gross rate-spread value after round-trip losses
Open calculator Working shownSolar, battery & backupGlobal Battery Backup Runtime CalculatorEstimate backup runtime from voltage, amp-hours, usable discharge, conversion efficiency and load
Open calculator Working shownHome projectsConcrete Volume Calculator — Metric & US UnitsCalculate rectangular concrete volume in cubic metres or cubic yards with explicit unit conversion and waste
Open calculator Working shownHome projectsPaint Quantity Calculator — Litres & GallonsEstimate paint from wall dimensions, openings, coats and the exact product coverage
Open calculator Working shownHome projectsFlooring & Tile Quantity CalculatorEstimate floor area, pieces and packs using metric or imperial dimensions and a visible waste allowance
Open calculator Working shownProperty & area unitsInternational Property Area TranslatorConvert standard property-area units while keeping the exact factor and both unit labels visible
Open calculator Independent verification
Full source library 10 official Australia resources
These links help verify tariffs, labels, schemes, measurements and rules. Their inclusion is not an endorsement.
Australiabills
Find the best energy deal
Australian Government
Explains bill comparison and the role of supply and usage charges.
Open official resourceAustraliaappliances
Understand the Energy Rating Label
Australian Government
Use label annual energy values rather than guessing from stars.
Open official resourceAustraliaappliances
Energy Rating product registration database
Australian Government
Official searchable product-performance records.
Open official resourceAustraliasolar storage
Size your solar system
Australian Government
Official planning guidance for matching solar size to household use.
Open official resourceAustraliasolar storage
Batteries
Australian Government
Battery planning and safety context; calculator losses remain editable.
Open official resourceAustraliabills
Energy Made Easy
Australian Energy Regulator
Official plan comparison service for eligible regions.
Open official resourceAustraliabills
Understanding energy bills
Australian Energy Regulator
Regulator consumer information on energy services and charges.
Open official resourceAustraliabuilding
National Construction Code for homeowners
Australian Building Codes Board
Explains how the NCC applies; material estimates do not certify compliance.
Open official resourceAustraliabuilding
Your Home technical manual
Australian Government
Independent residential design and efficiency guidance.
Open official resourceAustraliasolar storage
Small-scale renewable energy scheme
Clean Energy Regulator
Official scheme information; no rebate value is assumed by a calculator.
Open official resource