Power & Electrical Resistance to DC Voltage Calculator

DC Electrical Circuit Voltage Parameters
Power (P) [?]
Select power unit watts (W) kilowatts (kW) megawatts (MW) volt-amperes (V·A) kilovolt-amperes (kV·A) electrical horsepower (hp(E)) yoctowatts (yW) zeptowatts (zW) attowatts (aW) femtowatts (fW) picowatts (pW) nanowatts (nW) microwatts (µW) milliwatts (mW) centiwatts (cW) deciwatts (dW) watts (W) decawatts (daW) hectowatts (hW) kilowatts (kW) megawatts (MW) gigawatts (GW) terawatts (TW) petawatts (PW) exawatts (EW) zettawatts (ZW) yottawatts (YW) yoctovolt-amperes (yV·A) zeptovolt-amperes (zV·A) attovolt-amperes (aV·A) femtovolt-amperes (fV·A) picovolt-amperes (pV·A) nanovolt-amperes (nV·A) microvolt-amperes (µV·A) millivolt-amperes (mV·A) centivolt-amperes (cV·A) decivolt-amperes (dV·A) volt-amperes (V·A) decavolt-amperes (daV·A) hectovolt-amperes (hV·A) kilovolt-amperes (kV·A) megavolt-amperes (MV·A) gigavolt-amperes (GV·A) teravolt-amperes (TV·A) petavolt-amperes (PV·A) exavolt-amperes (EV·A) zettavolt-amperes (ZV·A) yottavolt-amperes (YV·A) electrical horsepower (hp(E)) mechanical horsepower (hp(I)) imperial horsepower (hp(I)) metric horsepower (PS) calories/sec (cal/s) kilocalories/sec (kcal/s) joules/sec (J/s) kilojoules/sec (kJ/s) british thermal units/sec (Btu/s ISO) foot-pounds/sec (ft·lb/s) newton-metres/sec (N·m/s) kilogram-force metres/sec (kgf·m/s) gram-force centimetres/sec (gf·cm/s) ergs/sec (erg/s) calories/min (cal/min) kilocalories/min (kcal/min) joules/min (J/min) kilojoules/min (kJ/min) british thermal units/min (Btu/min ISO) foot-pounds/min (ft·lb/min) newton-metres/min (N·m/min) kilogram-force metres/min (kgf·m/min) gram-force centimetres/min (gf·cm/min) ergs/min (erg/min) calories/hour (cal/h) kilocalories/hour (kcal/h) joules/hour (J/h) kilojoules/hour (kJ/h) british thermal units/hour (Btu/h ISO) foot-pounds/hour (ft·lb/h) newton-metres/hour (N·m/h) kilogram-force metres/hour (kgf·m/h) gram-force centimetres/hour (gf·cm/h) ergs/hour (erg/h)
Resistance (R) [?]
Select resistance unit ohms (Ω) kiloohms (kΩ) megaohms (MΩ) yoctoohms (yΩ) zeptoohms (zΩ) attoohms (aΩ) femtoohms (fΩ) picoohms (pΩ) nanoohms (nΩ) microohms (µΩ) milliohms (mΩ) centiohms (cΩ) deciohms (dΩ) ohms (Ω) decaohms (daΩ) hectoohms (hΩ) kiloohms (kΩ) megaohms (MΩ) gigaohms (GΩ) teraohms (TΩ) petaohms (PΩ) exaohms (EΩ) zettaohms (ZΩ) yottaohms (YΩ)
Calculate DC Electrical Current
Voltage (V) [?]
Select voltage unit microvolts (µV) millivolts (mV) volts (V) kilovolts (kV) yoctovolts (yV) zeptovolts (zV) attovolts (aV) femtovolts (fV) picovolts (pV) nanovolts (nV) microvolts (µV) millivolts (mV) centivolts (cV) decivolts (dV) volts (V) decavolts (daV) hectovolts (hV) kilovolts (kV) megavolts (MV) gigavolts (GV) teravolts (TV) petavolts (PV) exavolts (EV) zettavolts (ZV) yottavolts (YV)

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User Guide

Use this calculator to determine the voltage in microvolt, millivolt, volt or kilovolt units, generated by a direct current (DC) electrical circuit for a specified power and resistance. Two conversion scales show how the voltage will vary  when the power or resistance is changed independently, whilst the other remains fixed with the entered value.

Formula

The formula used by this calculator to determine the DC voltage from the power and resistance of the circuit is:

V = √ (P · R)

Symbols

• V = Voltage (DC)
• P = Electrical power (DC)
• R = Resistance (DC)

Power (P)

This is the electrical power generated in a DC electrical circuit.

Resistance (R)

This is the electrical resistance of the DC electrical circuit

Voltage (V)

This is the DC voltage or electrical potential difference applied to or generated by the electrical circuit with the entered values for current and resistance