Milliamps are used when we are working with amps or electrical current that comes in smaller quantities. They are also used to power 4-20 mA current loops, which is a device used to measure things like pressure, temperature, and pH. Milliamps are used as a unit of measurement on devices such as ammeters, digital multimeters (DMM), and galvanometers. A milliampere is abbreviated as mA, so one milliamp would be written as 1 mA. Just like amps, milliamps are a unit of measurement for electrical current. This means that 1 amp is equal to 1,000 milliamps. What Is a Milliamp?Ī milliamp, which is short for milliampere, is a sub-unit of measurement that’s equivalent to one 1,000th of an amp. You can use these values to calculate the amp hours of a circuit or appliance. If you own a solar panel kit and want to convert the wattage value to amperes for more precise calculations, all you would need to do is divide the wattage by the voltage. The symbol for amperes is ‘A’, so one ampere would be expressed as 1 A. It measures the rate or amount of electricity flowing through an electrical circuit. For this example, we'll take one of our 40 amp solar charge controllers and convert the power rating in amps to milliamps:Īn amp, which is short for amperes, is the basic unit of measurement for electric current. Let's use an example to help you understand. If you need to do the opposite and convert milliamps to amps, there is a similarly simple formula:įormula: Amps (A) = Milliamps (mA) ÷ 1,000 To make the amp to milliamp conversion, you need only use the following formula:įormula : Milliamps (mA) = Amps (A) x 1,000 How to Convert Amps to Milliampsġ amp is equal to 1,000 milliamps. No matter if you're measuring electrical current or distance, this is always the case. This is a prefix that means one thousandth, or 1/ 1,000 of a specific value. Generally speaking, when you're working with units of measurement you’re likely to come across a unit with the word ‘milli’ attached to it.
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