To convert volts to megavolts, multiply by 1e-06. That factor is the whole relationship: both units measure the electrical potential difference driving a current, so the conversion is a proportion with no offset and no substance-specific constant.
The volt is the SI unit of electric potential: one joule of energy per coulomb of charge moved. One mega volt is a million of a volt (1e6 volts).
The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in megavolts, so you can sanity-check whether your answer is a plausible size.
The formula
volts- The amount you are converting, in volts
1e-06- The exact number of megavolts in one volt
megavolts- The converted result
How it works, step by step
- Enter the value in volts.
- It is multiplied by 1e-06, the exact factor between the two units.
- The answer is shown in megavolts, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
AA alkaline cell: 1.5 V in megavolts
At 1.5 V (aa alkaline cell), the same quantity in megavolts is 1.5 × 1e-06 = 1.5e-06 MV. One volt is 1e-06 megavolts, so the numbers shrink as expected.
UK mains: 230 V in megavolts
At 230 V (uk mains), the same quantity in megavolts is 230 × 1e-06 = 0.00023 MV. One volt is 1e-06 megavolts, so the numbers shrink as expected.
How to read your score
Frequently asked questions
How many megavolts are in one volt?
Exactly 1e-06. 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 volts to megavolts?
megavolts = volts × 1e-06. Reversed, volts = megavolts ÷ 1e-06, which is the same as multiplying by 1,000,000.
Which is the bigger unit, the volt or the megavolt?
The megavolt. One volt is only 1e-06 of a megavolt, so it takes 1e+06 volts to make one megavolt.
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 volt?
The volt is the SI unit of electric potential: one joule of energy per coulomb of charge moved.
What is a megavolt?
One mega volt is a million of a volt (1e6 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.
Volts to megavolts reference tables
| Volts | Megavolts |
|---|---|
| 0.5 V | 5e-07 MV |
| 1 V | 1e-06 MV |
| 2 V | 2e-06 MV |
| 3 V | 3e-06 MV |
| 5 V | 5e-06 MV |
| 10 V | 1e-05 MV |
| 20 V | 2e-05 MV |
| 25 V | 2.5e-05 MV |
| 50 V | 5e-05 MV |
| 75 V | 7.5e-05 MV |
| 100 V | 0.0001 MV |
| 250 V | 0.00025 MV |
| 500 V | 0.0005 MV |
| 1000 V | 0.001 MV |
| 5000 V | 0.005 MV |
Exact factor: 1 volt = 1e-06 megavolts.
| Quantity | V | MV |
|---|---|---|
| AA alkaline cell | 1.5 V | 1.5e-06 MV |
| USB bus | 5 V | 5e-06 MV |
| Car battery | 12.6 V | 1.26e-05 MV |
| UK mains | 230 V | 0.00023 MV |
| US mains | 120 V | 0.00012 MV |
| Overhead distribution line | 1.1e+04 V | 0.011 MV |
Published reference values, converted with the same factor this page uses.