A reading of 450 mV on a digital multimeter is equal to how many volts?

When converting millivolts (mV) to volts, it's important to remember that 1 volt is equal to 1,000 millivolts. Therefore, to convert millivolts to volts, one must divide the millivolt reading by 1,000.

In this case, a reading of 450 mV can be converted to volts by performing the following calculation:

450 mV ÷ 1,000 = 0.450 volts.

This correctly yields a result of 0.450 volts, confirming that the choice indicating this value is accurate. Understanding this conversion is essential in various automotive applications, particularly when interpreting readings from diagnostic tools or sensors that report in millivolts.