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Convert DC Amps to AC Amps

By Benjamin Strusnik February 13, 2023

Converting DC amps to AC amps is imperative for a solar panel system to function properly. But what exactly are DC and AC amps? 

Before we can jump into the technical aspects of current and conversion, it’s important that we understand exactly what these terms mean and what they do.

What Is ‘DC’?

dc amps to ac amps calculator

DC, which is short for direct current, refers to an electrical current that flows in a single direction within a circuit. Direct current is typically used in smaller electronics that operate at a lower voltage.

A common use of direct current is in anything that provides power to an electrical circuit via a specific power supply, such as mobile phone and car batteries, DC generators, as well as solar panels that generate direct current.

Many of your household electronics and appliances make use of direct current, appliances such as TVs, smartphones, and computers. Since the electricity provided by your home's power outlets comes in the form of AC, appliances that run on direct current would need to convert the power themselves to turn it into usable electricity.

What Is ‘AC’?

AC is short for alternating current. An alternating current is a form of electrical current that is continuously changing direction from a positive charge to a negative charge within a circuit. The change in direction can affect the voltage levels within a circuit as well.

Alternating current is best known for its role in providing power to houses, buildings, etc. It is used for this purpose because only alternating current is able to send electricity over large distances.

This form of electrical current is necessary for applications such as powering the electrical outlets in a home or powering an electricity grid to provide power to cities and towns.

This is also the case when it comes to radio and audio signals, which are transmitted over large distances.

What Is an Amp?

An amp, which is short for ampere, is a base unit of measurement for electrical current. It is a measurement of the power running through a circuit.

how do you convert dc amps to ac amps

To get to the value of an ampere, you would need to divide the wattage by the voltage in an electrical circuit. Knowing the amperage, along with wattage and voltage, is necessary when determining the amount of electricity your household uses when sizing a solar panel system for your home.

Once you know the current of your circuit in amps, you can do conversions like amps to kilowatts and amps to volts.

This is also important when it comes to sizing the wires and cables for your electrical circuit because the higher the amperage is the bigger your cables will need to be in order to safely and efficiently transfer the electricity, as well as to prevent things like electrical fires.

What Is the Correlation Between DC Amps and AC Amps?

DC amps and AC amps are more or less the same things. They are both measurements of electricity flowing through a circuit. The only difference between the two would be the flow of the electrical current itself.

DC amperage means the flow of electricity only moves in one direction at a particular frequency. AC on the other hand refers to the electricity that changes direction (polarity) from positive to negative and back again within a certain time frame. In other words, in an AC circuit, the current moves back and forth rather than in one continuous direction.

Neither of these terms can tell you anything about the strength of the current. For that, you need an amp draw calculator.

An important distinction between these two forms of electrical current is how they are supposed to be measured, or more specifically, the device used to measure them.

dc to ac amp calculator

You need to use an ammeter to measure the electrical current in a circuit. However, despite DC amps and AC amps being more or less the same thing, they cannot be measured using the same type of ammeter. This is why you get a DC ammeter and an AC ammeter respectively. They are both made to measure You need to make sure you have the right one for the type of circuit you’re measuring.

How to Convert DC Amps to AC Amps

If you're looking for a formula to convert DC amps to AC amps, there is no such thing. Converting DC amps to AC amps has less to do with mathematical formulas and more with converting one form of electrical current to another.

To convert direct current to alternating current you need to use an inverter.

What Is an Inverter?

An inverter is an electrical device that, when connected to an electrical circuit, turns direct current into alternating current or vice versa. If you own a solar panel system, then you would know that this device is crucial to its functionality.

You should also look into an amp wire gauge calculator to make sure you have the right wiring for your system.

How Does an Inverter Convert DC Amps to AC Amps?

A solar powered generator works by absorbing light given off by the sun, which is then converted to direct current thanks to the solar cells found on the panels.

dc to ac amps calculator

This DC electricity is then sent through the circuit before reaching the inverter where the conversion takes place. This conversion is necessary for a solar panel system to power a house or building because DC electricity wouldn't be able to be spread evenly across the entire household or building otherwise.

An equally important function of the inverter is to regulate the voltage levels of the circuit before it reaches the home.

To find out what inverter you need for your home, check out our amp hour calculator to get started.

Types of Inverters

There are 3 types of inverters for solar panel systems; string inverters, microinverters, and power optimizers. Each type of inverter has its way of going about converting DC to AC.

String Inverter

This is the standard type of inverter you would generally come across when dealing with rooftop solar. It is made up of a single inverter unit that’s responsible for converting the DC electricity from the entire solar array.

The downside of this type of inverter is that if even a single panel is damaged or covered in shade, it affects the performance of the entire solar array.


With this type, each solar panel is given an individual inverter to convert the current. This setup allows the owner to monitor the performance of each solar panel individually, which comes in handy for troubleshooting.

ac to dc amp conversion calculator

This helps you ensure each panel is performing at its best. If one of the solar panels is damaged or in the shade, it won't affect the solar array as a whole because each of them would be functioning as a separate unit.

This is one of the most efficient types of solar inverters out there.

Power Optimizer

Power optimizers function as a mix between the first two types of inverters. They come in the form of optimizing components connected to each solar panel, as well as a single inverter unit.

The optimizing components maximize the DC electricity before it gets sent to the inverter, where the optimized direct current is then converted into AC electricity. This optimization increases the efficiency of each part of the solar array.

Power optimizers offer the same benefits as microinverters. The solar array will still function efficiently even if one of the panels is compromised.

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