Electrical Formulator

Solve any electrical design problem with hundreds of conversion and calculation formulas.
The best tool in your kit, this formulator lets you save and even email or print your results.
Conveniently displays your most used and recently used formulas.
Now includes 100 charts as well as direct access to Electrical Code online from many states

Perform calculations related to:

Batteries

BTU Conversions

Costs

Kilowatts,

Joules

Generators

Impedance

Motors

Ohms Law

Transformers

Voltage Drop

Wiring

BATTERIES

Starting motor amperage

Number of cells required

Operating time

COSTS

Operating lights and appliances

Using appliances

Hours of new bulb usage

Insulation years to payback

GENERATOR

Direct Current Generator

Generator amperage output

Generator efficiency

IMPEDANCE

Resistance & reactance are known

Resistance & inductive reactance are known

MISCELLANEOUS

kVA to kW

Parallel Circuits

Total resistance

Capacitance

Reactance (X)

Inductive Reactance

Capacitance Reactance

Bandwidth

MOTORS

Locked rotor current

Single-phase motors

Three phase motors

Motor kVA calculations

When Fla is known

When motor kVA per horsepower is known

Motor kVA when above not known

Speed of motor

BATTERIES

Starting motor amperage

Number of cells required

Operating time

Btu CONVERSIONS

Btu to calories

Btu to cubic ft-atm

Btu to foot pounds

Btu to ft-lbf

Btu to gram-cal

Btu to gram-cms

Btu to horsepower-hr

Btu to inch-lbf

Btu to joules

Btu to kilocalories

Btu to liter-atm

Btu to pounds-cal

Btu to watt-hr

COSTS

Operating lights and appliances

Using appliances

Hours of new bulb usage

Insulation years to payback

KILOWATTS AND JOULES CONVERSIONS

kilowatts to Btu/Hr

kilowatts to Btu/min

kilowatts to Btu/sec

kilowatts to erg/sec

kilowatts to foot-lbs/hr

kilowatts to foot lbs/min

kilowatts to foot-lbs/sec

kilowatts to gigawatts

kilowatts to gram-cm/sec

kilowatts to (metric) horsepower

kilowatts to horsepower

kilowatts to joules/sec

kilowatts to kilogram-cal/min

kilowatts to kilogram- cal/sec

kilowatts to kilogram-M/sec

kilowatts t lumens

kilowatts to megajoules/hr

Lumens

Lumens to Btu min

Lumens to Btu sec

GENERATOR

Direct Current Generator

Generator amperage output

Generator efficiency

IMPEDANCE

Resistance & reactance are known

Resistance & inductive reactance are known

MOTORS

Locked rotor current

Single-phase motors

Three phase motors

Motor kVA calculations

When Fla is known

When motor kVA per horsepower is known

Motor kVA when above not known

Speed of motor

OHMS LAW

Calculate for power

Power

Calculate for Resistance

Calculate for voltage

TRANSFORMERS

Primary amperes

Secondary amperes

Transformers sizes full load cur

Single phase 208 V

Single phase 240 v

Single phase 480 v

Three phase 208 v

Three phase 240 v

Three phase 480 v

Rated full load

Impedance of secondary

Amperage capacity from secondary

VOLTAGE DROP

Voltage drop calculations feet

1 phase copper

1 phase aluminum

3-phase copper

3 phase Aluminum

Voltage drop calculations meters

1 phase copper meters

1 phase aluminum meter

3 phase copper meters

3 phase aluminum meters

WIRING

Wire size

Wire length copper

Wire resistance

Wire length aluminum

Amp to be calculated

Conduit size,

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