Millivolts to Volts Converter
Quick answer: To convert millivolts to volts, multiply by 0.001. For example, 10 mV is 0.01 V. One millivolt equals 0.001 V.
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Use the Millivolts to Volts Converter
Millivolts to Volts formula and what each symbol means
V = mV × 0.001
| Symbol | Meaning |
|---|---|
| mV | Millivolt |
| V | Volt |
Millivolts to Volts examples
1 mV
1 mV × 0.001 = 0.001 V.
10 mV
10 mV × 0.001 = 0.01 V.
100 mV
100 mV × 0.001 = 0.1 V.
Millivolts compared with Volts
One V is 1,000 times as large as one mV, so your number gets smaller when you convert millivolts to volts and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About millivolts and volts
Millivolt (mV): Millivolt, 0.001 V. Volt (V): The volt, the SI unit of electric potential.
How to calculate Millivolts to Volts step by step
- Enter the value in mV (the starting unit).
- Multiply by 0.001, because 1 mV = 0.001 V.
- The product is the value in V. To go back, divide by 0.001 or multiply by 1,000.
Popular electric potential (voltage) conversions
How to read your Millivolts to Volts result
The volt is the SI unit of electric potential and equals one joule per coulomb.
| MILLIVOLTS | VOLTS |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
Volts to Millivolts: quick table
| VOLTS | MILLIVOLTS |
|---|---|
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
Common mistakes when calculating Millivolts to Volts
- Forgetting that kV is 1,000 V.
- Dividing when you should multiply: from mV to V multiply by 0.001; from V to mV divide by 0.001.
Millivolts to Volts FAQ
How many V are in 1 mV?
1 mV equals 0.001 V.
How many mV are in 1 V?
1 V equals 1,000 mV.
Is 1 mV = 0.001 V an exact conversion?
The factor is shown rounded to 7 significant figures (0.001). The calculator above uses more digits.
What is a millivolt (mV)?
Millivolt, 0.001 V.
How can I estimate millivolts to volts in my head?
One V is 1,000 times as large as one mV, so your number gets smaller when you convert millivolts to volts and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
What is 200 mV in volts?
200 mV = 0.2 V (since 200 × 0.001).
What is 3 mV in volts?
3 mV = 0.003 V (since 3 × 0.001).
What is 30 mV in volts?
30 mV = 0.03 V (since 30 × 0.001).
How many decimals should I keep when converting mV to V?
Match the precision of your original measurement. For example, 0.01 V rounds to 0.01 V at 3 significant figures; keep more digits only for engineering or scientific work.
More in Electric Potential (Voltage) converters
- Microvolts to Volts Converter
- Microvolts to Millivolts Converter
- Kilovolts to Microvolts Converter
- Microvolts to Kilovolts Converter
- Kilovolts to Millivolts Converter
- Kilovolts to Volts Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)