One ampere (A), sometimes known as an amp, is equal to five hundred milliamperes (mA). The unit for measuring and expressing electric current in the metric system is the ampere. A thousandth of an amp is equivalent to one milliamp, or 1 mA = 0.001 A in numerical form. Therefore, you can multiply 500 by 0.001, which is 0.5, to convert 500 mA to amps. It only takes a few operations of multiplication to find the answer to the question “What is 500 mA in amps?”
If you’re making mathematical conversions for a school assignment or working on a project at home and finally need to calculate another electricity-related value, it can be useful to know the 500mA to amp equivalent. For instance, amps times volts equal one watt. If you need to calculate watts from a milliamp measurement and a volt measurement, you must first convert the milliamps to amps in order to complete the final equation.