This tool will calculate any parameter from the formula R₁ = R₀·(1+α·(T₁–T₀)) for determining how much electrical resistance changes with temperature

# Electrical & Electromagnetic Calculators

Web tools for electrical and electromagnetic based calculations

## Voltage & Electrical Resistance to DC Power Calculator

Use this calculator to determine the power in a direct current (DC) electrical circuit with a specified voltage and resistance P = V²/R

## Voltage & Power to DC Electrical Resistance Calculator

Use this calculator to determine the resistance of a direct current (DC) electrical circuit with a specified voltage and power R = V²/P

## Power & Electrical Resistance to DC Voltage Calculator

Use this calculator to determine the voltage generated by a direct current (DC) electrical circuit for a specified power and resistance V = √(P·R)

## Power & Electrical Resistance to DC Current Calculator

Use this calculator to determine the current generated by a direct current (DC) electrical circuit for a specified power and resistance I = √(P/R)

## Power & Current to DC Electrical Resistance Calculator

Use this calculator to determine the resistance of a direct current (DC) electrical circuit with a specified power and current R = P/I²

## Current & Electrical Resistance to DC Power Calculator

Use this calculator to determine the power in a direct current (DC) electrical circuit with a specified current and resistance P = I²·R

## Voltage & Current to DC Electrical Resistance Calculator

Use this calculator to determine the electrical resistance of a direct current (DC) electrical circuit with a specified voltage and current R = V/I

## Current & Electrical Resistance to DC Voltage Calculator

Use this calculator to determine the voltage in a direct current (DC) electrical circuit with a specified current and resistance V = I·R

## Voltage & Electrical Resistance to DC Current Calculator

Use this calculator to determine the current in a direct current (DC) electrical circuit with a specified voltage and resistance I = V/R

## Power & Voltage to DC Current Calculator

Use this calculator to determine the current generated by a direct current (DC) electrical circuit for a specified power and voltage I = P/V

## Power & Current to DC Voltage Calculator

Use this calculator to determine the voltage applied to a direct current (DC) electrical circuit with a specified power and current V = P/I

## Voltage & Current to DC Power Calculator

Use this calculator to determine the power generated by a direct current (DC) electrical circuit for a specified voltage and current P = V·I

## Time Delay to Distance Calculator for Electromagnetic Waves in a Vacuum

Calculate how far away the receiver is from an electromagnetic wave emission source, by entering the time it takes it to travel in a vacuum between the two locations d = t·c₀

## Distance to Time Delay Calculator for Electromagnetic Waves in a Vacuum

Calculate the time it takes for an electromagnetic wave to travel in a vacuum by entering the distance to the emission source t = d/c₀

## Photon Energy to Wavelength Calculator for Electromagnetic Waves in a Vacuum

Calculate the wavelength of an electromagnetic wave in a vacuum by entering a value for the corresponding energy per photon for the em wave λ = h·c₀/E

## Wavelength to Photon Energy Calculator for Electromagnetic Waves in a Vacuum

Calculate the energy per photon of an electromagnetic wave by entering a value for the corresponding wavelength E = h·c₀/λ

## Frequency to Photon Energy Calculator for Electromagnetic Waves

Calculate the energy per photon of an electromagnetic wave in by entering a value for the corresponding em wave frequency E = h·f

## Photon Energy to Frequency Calculator for Electromagnetic Waves

Calculate the frequency of an electromagnetic wave by entering a value for the corresponding energy per photon for the em wave f = E/h

## Frequency to Wavelength Calculator for Electromagnetic Waves in a Vacuum

Calculate the wavelength of an electromagnetic wave in a vacuum by entering a value for the corresponding frequency λ = c₀/f

## Wavelength to Frequency Calculator for Electromagnetic Waves in a Vacuum

Calculate the frequency of an electromagnetic wave in a vacuum by entering a value for the corresponding wavelength f = c₀/λ