This page converts millivolts into microvolts using the factor 1000, and shows the reverse figure alongside it. Both units measure the electrical potential difference driving a current, which is why one number does the whole job.
Millivolts are the working scale of sensors and thermocouples, where the whole usable signal may span less than a volt. One micro volt is one millionth of a volt (1e-6 volts).
Below the calculator there is a step table for the values people look up most, and a second table putting real the electrical potential difference driving a current figures into microvolts so the number you get has something to be compared against.
The formula
millivolts- The amount you are converting, in millivolts
1000- The exact number of microvolts in one millivolt
microvolts- The converted result
How it works, step by step
- Enter the value in millivolts.
- It is multiplied by 1000, the exact factor between the two units.
- The answer is shown in microvolts, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Car battery: 1.26e+04 mV in microvolts
Take car battery, roughly 1.26e+04 mV. The conversion is a single multiplication — 1.26e+04 × 1000 — giving 1.26e+07 µV. Because the relationship is proportional, doubling the input doubles the answer to 2.52e+07 µV.
US mains: 1.2e+05 mV in microvolts
US mains comes to about 1.2e+05 mV. Multiplying by the factor: 1.2e+05 × 1000 = 1.2e+08 µV. Dividing the answer back by 1000 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many microvolts are in one millivolt?
Exactly 1000. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert millivolts to microvolts?
microvolts = millivolts × 1000. Reversed, millivolts = microvolts ÷ 1000, which is the same as multiplying by 0.001.
Which is the bigger unit, the millivolt or the microvolt?
The millivolt. One millivolt equals 1000 microvolts.
What does this quantity actually measure?
Both units measure the electrical potential difference driving a current. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a millivolt?
Millivolts are the working scale of sensors and thermocouples, where the whole usable signal may span less than a volt.
What is a microvolt?
One micro volt is one millionth of a volt (1e-6 volts).
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Millivolts to microvolts reference tables
| Millivolts | Microvolts |
|---|---|
| 0.5 mV | 500 µV |
| 1 mV | 1000 µV |
| 2 mV | 2000 µV |
| 3 mV | 3000 µV |
| 5 mV | 5000 µV |
| 10 mV | 10,000 µV |
| 20 mV | 20,000 µV |
| 25 mV | 25,000 µV |
| 50 mV | 50,000 µV |
| 75 mV | 75,000 µV |
| 100 mV | 100,000 µV |
| 250 mV | 250,000 µV |
| 500 mV | 500,000 µV |
| 1000 mV | 1e+06 µV |
| 5000 mV | 5e+06 µV |
Exact factor: 1 millivolt = 1000 microvolts.
| Quantity | mV | µV |
|---|---|---|
| AA alkaline cell | 1500 mV | 1.5e+06 µV |
| USB bus | 5000 mV | 5e+06 µV |
| Car battery | 1.26e+04 mV | 1.26e+07 µV |
| UK mains | 2.3e+05 mV | 2.3e+08 µV |
| US mains | 1.2e+05 mV | 1.2e+08 µV |
| Overhead distribution line | 1.1e+07 mV | 1.1e+10 µV |
Published reference values, converted with the same factor this page uses.