Amperios a Vatios Calculadora
Determine rápidamente cuántos vatios consume su dispositivo introduciendo su lectura de amperios y el voltaje de entrada. Esencial para medir la eficiencia de pequeños electrodomésticos.
Calculadora de Consumo
Amperios → Vatios
Medición de la potencia activa que utiliza la carga.
La Fórmula de Conversión
El cálculo de potencia depende del tipo de circuito — se requiere el factor de potencia para todos los sistemas de CA.
Sistemas de CC
W = I × V La ecuación fundamental de potencia — amperios por voltios es igual a vatios en todos los circuitos de CC.
CA Monofásica
W = I × V × PF El factor de potencia tiene en cuenta la diferencia de fase entre voltaje y corriente, reduciendo la potencia real efectiva.
CA Trifásica
W = √3 × I × V × PF La potencia trifásica equilibrada se suma en las tres fases con el coeficiente √3 (1.732) para el voltaje de línea.
How to Convert Amps to Watts
Converting amperes to watts tells you how much real power a device consumes. This is essential for calculating energy costs, sizing generators, verifying circuit capacity, and comparing appliances. Multiply amps by volts — then apply the power factor for AC systems.
Real Power vs. Apparent Power
Real power (watts) is energy that actually does work — turning a motor, heating an element. Apparent power (VA) is what the supply delivers including reactive current. For heaters and lamps they're equal. For motors and transformers, watts are always lower than VA because some current builds magnetic fields without doing useful work.
Practical Applications
- Energy Cost Calculation: Convert amps to watts, multiply by hours of use to get Wh, divide by 1000 for kWh, then multiply by your electricity tariff.
- Generator Sizing: Sum the watts of all simultaneous loads and add 25% for motor startup surges.
- Circuit Load Audit: Sum all load watts on a circuit. The total should not exceed 80% of the breaker rating × voltage (NEC continuous load rule).
Step-by-Step Conversion
- Read the Current: Measure with a clamp meter or find the amp rating on the device nameplate.
- Note the Voltage: Check your supply — 120V or 240V in North America; 230V in most of Europe.
- Apply Power Factor: Use 1.0 for pure resistive loads. Use 0.8–0.9 for motors and inductive equipment.
- Multiply: I × V for DC; I × V × PF for single-phase AC; √3 × I × V × PF for three-phase AC.