All electrical calculators

Wire & conductor size

89 pages

Pick the right gauge for a load, service, or subpanel from the NEC 310.16 ampacity tables.

Wire Gauge Calculator

100 Amp Wire Size

50 Amp Wire Size

200 Amp Wire Size

40 Amp Wire Size

What Size Wire For 100 Amp Service

Wire Size For 20 Amp

60 Amp Wire Size

30 Amp Wire Size

100 Amp Service Wire Size

Dc Wire Size Calculator

What Size Wire For 20 Amp Circuit

200 Amp Service Ground Wire Size

Amp Wire Size

Range Wire Size

400 Amp Wire Size

Grounding Wire Size

100 Amp Wire Gauge

Ground Wire Size For 100 Amp Service

Sizing Ground Wire

150 Amp Service Wire Size

Nec Wire Size

600 Amp Wire Size

Equipment Grounding Conductor Size

Ground Wire Size Calculator

250 Amp Wire Size

Awg Calculator

200 Amp Service Wire Size Copper

100 Amp Wire Size Calculator

Ground Wire Size For 400 Amp Service

50 Amp Wire Size Copper

What Size Cable For 200 Amp Service

Multiple Wire Gauge Calculator

150a Wire Size

Electical Wire Size

Electric Service Line Size

Minimum Gage Copper Wire For Grounding Antenna

Sub Panel Load Calculator

125 Amp Panel Wire Size

Dc Current Wire Size Calculator

25 Kva Secondary Wire Sizing

Ground Conductor Size For 50 Amp Breaker

Calculate Current Rating Cable

Page Wire Size Calculator

Grounding Conductor Size For 100 Amp

AWG For 60 Amp Service

24v Ac Wire Size Calculator

600 Amp Ground Wire Size

10 Awg Copper Ok for Ground Wire

16 Gauge Wire Length For 1 Amp

2-20 Amp Breaker Wire Size

60 Amp Breaker Wire Size Copper

99 Amps Of 120v Needs What Size Wire

Aluminum Cable For 500 Foot Electrical Service Run

Dc Circuit Breaker Size For 4 Wire Gauge

Diameter Of A Wire Cal

Estimate Wiring Cable For A Basement

Size Of Conductor To Grounding Rod

Size Of Grounding Electrodes

Size Wire For House Feed

Speaker 70 Volt Page Wire Size Calculator

Speaker Page Wire Size Calculator

What Gauge Wire To Ground A Generator

60 Amp Wire Size Copper

Ground Size For 125 Amp Service

10 Gauge Wire Amperage Load 12v

150 Amp Motor Ground Wire Size

250 Amp Service Wire Size

NEC Wire Size Calculator

70 Amp Service Wire Size

Low Voltage Wire Size Calculator

20 Amp Circuit Breaker Wire Size

Ground Wire For 1200 Amp Service

10 Guage Wire 240v Amps

100 Ampplifier Wire Size Calculator

100a Wire Size @12v

115v 11amp 700 Feet Of Wire Size

15amp Circuit Wire Size

20 Amp Gauge Wire Length

20 AWG Wattage 110V

60 Amp Wire Size 75 Degrees

Breaker Amperage For 100 Ft 8 Gauge Wire

Cable Size 150 Amp Box 150 Ft From Meter

Elecrical Wire Size Amp Rating

NEC Wire Sizes Based On Breakers Size Or Load

Service Panel Wire Size Calculator

Size Of Cable For 175 Amp

Sizing A TBB Grounding Conductor

Distance Wire Size

Voltage drop

14 pages

Check the drop on a run and see whether it stays inside the 3% guideline.

Calculate Voltage Drop

Southwire Voltage Drop

Dc Voltage Drop Calculator

Ac Voltage Drop Calculator

480 Voltage Drop Calculator

12vdc Voltage Drop Calculator

5V Voltage Drop Over 100 Ft Of 22 Gauge Wire

1oo Amp Urd Voltage Drop

Find The Voltage Drop From C T Od

450 Feet Voltage Drop

SolarEdge DC Voltage Drop

10 Ohm Resistor Voltage Drop Calculator

Heating Element Voltage Drop Calculator

NEC Voltage Drop Calculations

Conduit fill

23 pages

Fill percentage for EMT, PVC, and RMC from the NEC Chapter 9 tables.

Box fill

3 pages

Minimum box volume from the conductor, device, and ground allowances in 314.16(B).

Junction Box Size Calculator

Calculating Box Fill Plastic Box

Cubic Inches Per 14-2 Connection In J-Box

Ampacity & derating

23 pages

Allowable ampacity for a conductor at its termination temperature.

More calculators

83 pages

Ohm’s law and the rest of the on-the-job math.

Electrical Calculator

Load Calculator

Conduit Bending Calculator

Home Generator Sizing Calculator

Electric Load Calculator

40 Amp Wire

Residential Load Calculator

Full Load Amps Calculator

Bending Calculator

Breaker Size Calculator

NEC Service Load Calculation

Conduit Offset Calculator

HP to FLA

Motor Calculator

Watts Law Calculator

Ohm Law Calc

Electrical Load Calculator App

Motor Fla Calculator

7.5 Hp Motor Amps

Dc Circuit Calculator

Home Generator Wattage Calculator

400 Hp 460v Motor Fla

Electrical Residential Online Load Calculater

Service Load Calculation

Electrician Calculator App

FLC of 75hp 1000 Volt Motor

Electric Vehicle Charging Calculator

Home Load Calculator

Hp To Flc

2hp Motor Flc

Extension Cord Calculator

Multiplier For A 10 Degree Bend

Racyway Fill

Online Load Calculater

40 Hp Motor Amps

0.8 Hp Motor Fla

1.25hp to Amps

10 Gauge Cable Length Limits

70 Hp Fla

75 Foot Run 50 Amp Service

80 Amps Aluminum Wire

900 Amp Electrical Wire

Amps On 525hp

Calculate Va Of Continuous And Noncontinuous Loads

Dc Voltage Calculator Length

Fill A 5.5 By 2.5 Box

Find Maximum Current In Wire

Full Load Amps 50 Hp

Level 1 Ev Calculator

Load Calculation For Small Apartment

Nec Number Of Circuits Per Pipe

125 Horsepower Motor Amps

Home Generators Size Calculators

100 Hp Motor Fla

How Many Amps Does A 1.5 Hp Motor Draw

Nec Load Commercail Calculation

NEC 220 Calculator

Branch Circuit Calculator

MG High Temp Wire Amp Calculations

55kW 480V Motor FLA

Square D Motor Calculator

Nec 220 Load Calculations

5hp Motor 480v To Amp

Single Phase 10hp Motor Amps

Saddle Bend Calculator

12amp Motor Horsepower

160w And 120v How Mych Resistance

20 Amp 250 Feet

80 Amp 240V Cable

Circuit Breaker Fault Currentc Calculator

Find Max Motor Amperage

House Circuit Breaker Calcualtor

House Load Calculator Appliances

House Load Calculator List Of Appliances

How Many Amps On A 600hp Motor

NEC Load Calc For On Demand Electric Hot Water

NEC Sizing Motro Power Cables

NEC Solar DC Wire

Size Of Al Conductors For 200 Amp Service

Sizing Conductor Calculator

Sizing Conductor Calculator Ambient Temperature

Sizing Transfomer Secondary Conductor Calculator

Copper To Aluminum Wire Conversion