Educational reference
Electrical Reference Tables
These tables organize calculated examples for wire, power, energy, batteries, solar, motors, and circuits using the formula shown with each calculator. Values are derived from the linked equations or the dated NIST, NLR, EIA, Census, and standards-publication sources identified on each page.
A crawlable index of the semantic reference table included with every Power Totals calculator.
Each calculator includes a sourced or mathematically derived table beside its formula and worked example. Select a row to open the table in context.
| Calculator | Category | Reference table |
|---|---|---|
| Voltage Drop Calculator | Wire & voltage | AWG conductor resistance by material and temperature |
| Wire Size by Voltage Drop Calculator | Wire & voltage | AWG conductor resistance by material and temperature |
| AWG to mm² Calculator | Wire & voltage | AWG conductor resistance by material and temperature |
| Wire Resistance Calculator | Wire & voltage | AWG conductor resistance by material and temperature |
| Ohm's Law Calculator | Technical utilities | Electrical and resistor formula variants |
| Watts to Amps Calculator | Power & phase | Common-voltage watts and amps conversions |
| Amps to Watts Calculator | Power & phase | Common-voltage watts and amps conversions |
| kW to Amps Calculator | Power & phase | Common-voltage watts and amps conversions |
| kVA to Amps Calculator | Power & phase | Common-voltage watts and amps conversions |
| Single-Phase Power Calculator | Power & phase | DC, single-phase, and three-phase relationships |
| Three-Phase Power Calculator | Power & phase | DC, single-phase, and three-phase relationships |
| Power Factor Calculator | Power & phase | DC, single-phase, and three-phase relationships |
| Voltage Divider Calculator | Technical utilities | Electrical and resistor formula variants |
| Series & Parallel Resistor Calculator | Technical utilities | Electrical and resistor formula variants |
| Battery Runtime Calculator | Battery & energy | Nominal appliance power planning values |
| Battery Bank Calculator | Solar | Nominal appliance power planning values |
| Inverter Size Calculator | Solar | Nominal appliance power planning values |
| Solar Cable Voltage Drop Calculator | Solar | AWG conductor resistance by material and temperature |
| Transformer kVA Calculator | Transformers & motors | Nominal kVA, voltage, and current examples |
| Transformer Turns Ratio Calculator | Transformers & motors | Nominal kVA, voltage, and current examples |
| Motor Current Estimator | Transformers & motors | Nominal kVA, voltage, and current examples |
| Generator Sizing & Load Calculator | Transformers & motors | Nominal kVA, voltage, and current examples |
| Conduit Fill Geometry Calculator | Technical utilities | Circle diameter and geometric area examples |
| LED Resistor Calculator | Technical utilities | Electrical and resistor formula variants |
| Electricity Cost Calculator | Battery & energy | Energy and cost examples by kWh rate |
| Appliance Running Cost Calculator | Battery & energy | Nominal appliance power planning values |
| kWh Calculator | Battery & energy | Energy and cost examples by kWh rate |
| EV Charging Cost Calculator | Battery & energy | Energy and cost examples by kWh rate |
| Energy Usage Calculator | Battery & energy | Nominal appliance power planning values |
| Solar Panel Calculator: How Many Panels Do You Need? | Solar | Nominal kVA, voltage, and current examples |
| Solar Battery Calculator | Solar | Nominal kVA, voltage, and current examples |
| Off-Grid Solar Calculator | Solar | Nominal kVA, voltage, and current examples |
| RV Solar Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar System Size Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar ROI Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Savings Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Payback Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Panel Angle Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Charge Controller Calculator | Solar | Nominal kVA, voltage, and current examples |
| Portable Power Station Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Loan Calculator | Solar | Nominal kVA, voltage, and current examples |
| Solar Lease vs Buy Calculator | Solar | Nominal kVA, voltage, and current examples |
| Commercial Solar Calculator | Solar | Nominal kVA, voltage, and current examples |
| Home Backup Power Calculator | Battery & energy | Nominal kVA, voltage, and current examples |
| Solar Panel String & MPPT Calculator | Solar | Nominal kVA, voltage, and current examples |
| Generator Fuel Consumption & Runtime Calculator | Transformers & motors | Nominal kVA, voltage, and current examples |
| Battery Charging Time & C-Rate Calculator | Battery & energy | Nominal kVA, voltage, and current examples |
| EV Home Charging Planner | Battery & energy | Nominal kVA, voltage, and current examples |
| Plug-In Solar Savings Calculator | Solar | Nominal kVA, voltage, and current examples |
| Virtual Power Plant Value Calculator | Solar | Nominal kVA, voltage, and current examples |