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Ohm's Law Calculators

Before clicking for the answer, enter numbers into the equation you wish to use to calculate for Current, Power, Resistance, or Voltage. *Updated January 8, 2011 to accept/change commas to periods for those that use commas as decimal separators.

Ohm's Law Calculators
• Current (I) Calculators
• Power (P) Calculators
• Resistance (R) Calculators
• Voltage (E) Calculators

Ohm's Law
• Ohm's Law Pie Chart

Calculate for Current (I)

I = P / E

Power	Voltage		Current

Watts	Volts		Amps

I = Square Root of (P / R)

Power	Resistance		Current

Watts	Ohms		Amps

I = E / R

Voltage	Resistance		Current

Volts	Ohms		Amps

Calculate for Power (P)

P = I ² x R

Current	Resistance		Power

Amps	Ohms		Watts

P = E x I

Voltage	Current		Power

Volts	Amps		Watts

P = E ² / R

Voltage	Resistance		Power

Volts	Ohms		Watts

Calculate for Resistance (R)

R = P / I ²

Power	Current		Resistance

Watts	Amps		Ohms

R = E / I

Voltage	Current		Resistance

Volts	Amps		Ohms

R = E ² / P

Voltage	Power		Resistance

Volts	Watts		Ohms

Calculate for Voltage (E)

E = I x R

Current	Resistance		Voltage

Amps	Ohms		Volts

E = P / I

Power	Current		Voltage

Watts	Amps		Volts

E = Square Root of (P x R)

Power	Resistance		Voltage

Watts	Ohms		Volts

• Ohm's Law Pie Chart
• Ohm's Law Calculators

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Friday, February 03, 2012

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Basics • Car Audio • Car Security • Cruise Controls • Diodes • Door Locks • Ohm's Law • Passive Crossovers • Relays • Resistors • Subwoofer Enclosures

Application Guides • Calculators, Charts, Diagrams • Downloads/Manuals • Find Installers • Forums • Glossary • Subwoofer Wiring • Tools • Vehicle Wiring

the12volt.com - Free Technical Information for Mobile Electronics Installers, Enthusiasts, and Do-It-Yourselfers since 1999

Donate to the12volt.com

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