---
title: "Amps to Watts Conversion Chart"
canonical: "https://ampstowatt.com/conversion-charts/"
author: ""
published: "2026-09-05T09:07:44+00:00"
modified: "2026-09-05T09:07:44+00:00"
language: "en-US"
site: "Ampstowatt"
description: "Complete amps to watts reference tables for 12V, 120V, 240V, and 480V circuits. DC, AC single-phase, and 3-phase values included."
attribution: "Ampstowatt (https://ampstowatt.com/)"
---

# Amps to Watts Conversion Chart

## Comprehensive Amps to Watts Conversion Charts

 

Use these quick reference tables to convert amps to watts across the most common electrical voltages used worldwide. These charts assume a power factor of 1.0 (resistive load). For inductive loads, remember to multiply the chart wattage by the equipment’s power factor.

 

### 12V DC (Automotive, RV, Solar)

 

12-volt systems are standard for cars, boats, and small off-grid setups.

 

| Current (Amps) | Power (Watts) | Common Application |
| --- | --- | --- |
| 1A | 12W | LED dome light |
| 5A | 60W | Small water pump |
| 10A | 120W | 12V refrigerator |
| 15A | 180W | Standard accessory outlet |
| 20A | 240W | Light bar |
| 30A | 360W | Small power inverter |
| 50A | 600W | Winch or large inverter |

 

### 120V AC (Standard US Household)

 

120-volt circuits are used for standard wall outlets in North America.

 

| Current (Amps) | Power (Watts) | Common Application |
| --- | --- | --- |
| 1A | 120W | Television |
| 5A | 600W | Small blender |
| 10A | 1200W | Microwave or small heater |
| 12A | 1440W | Max continuous load on 15A breaker |
| 15A | 1800W | Max peak load on 15A breaker |
| 16A | 1920W | Max continuous load on 20A breaker |
| 20A | 2400W | Max peak load on 20A breaker |

 

### 240V AC (US Heavy Appliances & Global Standard)

 

240-volt circuits power heavy US appliances (dryers, EV chargers, HVAC) and are the standard wall outlet voltage in many countries.

 

| Current (Amps) | Power (Watts) | Common Application |
| --- | --- | --- |
| 10A | 2400W | Baseboard heater |
| 16A | 3840W | Level 2 EV Charger (Standard) |
| 20A | 4800W | Water heater |
| 30A | 7200W | Clothes dryer |
| 40A | 9600W | Electric range / oven |
| 50A | 12000W | Large central air conditioner |

 

### 480V AC Three-Phase (Industrial)

 

480-volt 3-phase power is standard in US manufacturing and commercial facilities. (Calculated with line-to-line formula, PF 1.0)

 

| Current (Amps) | Power (Watts) | Kilowatts (kW) |
| --- | --- | --- |
| 10A | 8,314W | 8.3 kW |
| 20A | 16,627W | 16.6 kW |
| 50A | 41,568W | 41.5 kW |
| 100A | 83,138W | 83.1 kW |

      Hub  

## Apply This Knowledge

     **Start with the main conversion tool** 

Use these calculator pages to apply the concept to real current, voltage, watts, and power-factor problems.[Amps to Watts Calculator](/)

  [W**Amps to Watts Calculator**Main calculator hub and formula reference](/)[AC**AC Amps to Watts Calculator**Apply power factor to AC current](/ac-amps-to-watts-calculator/)[DC**DC Amps to Watts Calculator**Use the direct DC watts formula](/dc-amps-to-watts-calculator/)[A**Watts to Amps Calculator**Find current from known watts and volts](/watts-to-amps-calculator/)[FX**Amps to Watts Formula**Review the formulas behind the tools](/amps-to-watts-formula/)[PF**Power Factor**Understand real power in AC circuits](/power-factor/)     Advertisement