Cable
Cable size
Screen metric conductor sizes with voltage-drop context.
Most used calculators
Open the calculation that matches the job, then move to tables or guides only when needed.
View calculator
Cable
Voltage drop
Estimate voltage drop for AC cable runs.
Load
Maximum demand
Build a transparent switchboard demand worksheet.
Power
Load current
Convert kW, kVA, voltage and power factor to current.
Protection
Fault loop impedance
Estimate fault current from loop impedance.
Testing
RCD test checker
Organise RCD or RCBO measurements against entered criteria.
Find tools for your work
Start from the work type, then open the exact calculator or reference family.
Installation checks
Cable runs, current, protection and measured test records.
Design review
Switchboard demand, fault levels, solar strings and inverter AC cables.
Records and estimates
Phase balance, running cost, generator loading and cable quantities.
Browse by category
Calculator families for cable, load, protection, solar, EV, motors and site records.
Cable sizingVoltage drop, cable size and submain checks.18 calculatorsLoad and demandMaximum demand and phase-balance worksheets.14 calculatorsPower conversionCurrent, kVA, power factor and energy cost.12 calculatorsProtectionFault current, loop impedance and RCD records.15 calculatorsMotorsFLC, starting current and voltage dip.3 calculatorsTransformersTransformer kVA and current relationships.1 calculatorSolar and batteryPV string, inverter AC cable and battery cable checks.9 calculatorsEV chargingEV charger load planning.4 calculatorsBattery and backupRuntime, capacity and DC current worksheets.5 calculatorsLightingLighting circuit load worksheets.1 calculatorEstimatingCable quantity and material cost.7 calculatorsPower qualityVoltage events, harmonic records, resonance screening and measurement logs.7 calculatorsGeneratorsFuel use, runtime and starting kVA.3 calculatorsBackup powerUPS runtime and battery sizing.2 calculators
What is AUWiring?
AUWiring groups calculation tools, reference tables, formula charts and concise guides for Australian electrical work.
Why professionals use it
AU TERMS
Australian terminology
Metric cable sizes, switchboards, earthing, RCD/RCBO language and 230/400 V a.c. context.
CONNECTED
Tools and reference together
Move from a calculator to tables, charts or guides without losing the task context.
STATIC ACCESS
Fast public pages
Open static pages directly, with no sign-in step between the user and the calculation.