Amps to Volts calculator

Amps to Volts Calculator

Calculate voltage (Volts) from current (Amps) using either Watts or Ohms.

Amps to Volts Calculator

Calculate voltage (Volts) from current (Amps) using either Watts or Ohms.

How To Convert Amps to Volts

Converting Amperes (current) to Volts (voltage) is crucial in electrical engineering for determining voltage requirements, sizing equipment, and ensuring proper circuit operation. This conversion helps engineers and technicians design safe and efficient electrical systems.

Power Method Calculation

Calculate voltage from power and current using this fundamental formula:

V(V) = P(W) / I(A)

Where:

  • V(V) Voltage in Volts (V)
  • P(W) Power in Watts (W)
  • I(A) Current in Amperes (A)

Key Point: This method is particularly useful when working with power supplies and electrical appliances where power ratings are known.

Ohm’s Law Calculation

For circuits where resistance is known, use Ohm’s Law to calculate voltage:

V(V) = I(A) ร— R(ฮฉ)

Where:

  • V(V) Voltage in Volts (V)
  • I(A) Current in Amperes (A)
  • R(ฮฉ) Resistance in Ohms (ฮฉ)

Important: This formula applies to both DC circuits and AC circuits when using RMS values.

Practical Examples

Power Method Example

Given:

  • Power = 1200 W
  • Current = 5 A

Calculation:

V = 1200 W / 5 A = 240 V

Ohm’s Law Example

Given:

  • Current = 2 A
  • Resistance = 100 ฮฉ

Calculation:

V = 2 A ร— 100 ฮฉ = 200 V

Important Note: Always round calculations to appropriate decimal places and consider safety margins for practical applications.

Author

  • Manish Kumar

    Manish holds a B.Tech in Electrical and Electronics Engineering (EEE) and an M.Tech in Power Systems, with over 10 years of experience in Metro Rail Systems, specializing in advanced rail infrastructure. He is also a NASM-certified fitness and nutrition coach with more than a decade of experience in weightlifting and fat loss coaching. With expertise in gym-based training, lifting techniques, and biomechanics, Manish combines his technical mindset with his passion for fitness.

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