Volt to Millivolt Converter
Enter the value that you want to convert volt (V) to millivolt (mV) or millivolt to volt.Also written as V to MV conversion.
1 volt = 1000.0000000 millivolt
Formula: millivolt = volt value × 1000.0000000
V to MV — volt to millivolt
10 volt = 10000.00000 millivolt
Popular Electric Potential Converters:
Converting Volt to Millivolt
Understanding the Volt
Volt (V) is a unit of electric potential measurement. 1 volt is equal to 1000.0000000 millivolt.
What is Millivolt?
Millivolt (mV) is a unit of electric potential measurement. 1 millivolt is equal to 0.0010000 volt.
volt to millivolt metric conversion table
| 0.01 V | = | 10.00000 mV |
| 0.1 V | = | 100.00000 mV |
| 1 V | = | 1000.00000 mV |
| 2 V | = | 2000.00000 mV |
| 3 V | = | 3000.00000 mV |
| 4 V | = | 4000.00000 mV |
| 5 V | = | 5000.00000 mV |
| 6 V | = | 6000.00000 mV |
| 7 V | = | 7000.00000 mV |
| 8 V | = | 8000.00000 mV |
| 9 V | = | 9000.00000 mV |
| 10 V | = | 10000.00000 mV |
| 11 V | = | 11000.00000 mV |
| 12 V | = | 12000.00000 mV |
| 13 V | = | 13000.00000 mV |
| 14 V | = | 14000.00000 mV |
| 15 V | = | 15000.00000 mV |
| 16 V | = | 16000.00000 mV |
| 17 V | = | 17000.00000 mV |
| 18 V | = | 18000.00000 mV |
| 19 V | = | 19000.00000 mV |
| 20 V | = | 20000.00000 mV |
| 30 V | = | 30000.00000 mV |
| 40 V | = | 40000.00000 mV |
| 50 V | = | 50000.00000 mV |
| 60 V | = | 60000.00000 mV |
| 70 V | = | 70000.00000 mV |
| 80 V | = | 80000.00000 mV |
| 90 V | = | 90000.00000 mV |
| 100 V | = | 100000.00000 mV |
| 200 V | = | 200000.00000 mV |
| 300 V | = | 300000.00000 mV |
| 400 V | = | 400000.00000 mV |
| 500 V | = | 500000.00000 mV |
| 600 V | = | 600000.00000 mV |
| 700 V | = | 700000.00000 mV |
| 800 V | = | 800000.00000 mV |
| 900 V | = | 900000.00000 mV |
| 1000 V | = | 1000000.00000 mV |
How to Convert V to MV (Volt to Millivolt)?
We can convert volt to millivolt by using an example.
Example:
Convert 20 Volt to Millivolt?
We know 1 Volt = 1000.0000000 millivolt; 1 Millivolt = 0.0010000 volt.
20 volt = ___mV
20 × 1000.0000000 = 20000.00000 mV (we know 1 volt = 1000.0000000 millivolt)
Answer:
20 volt = 20000.00000 millivolt
Volts to Millivolts: Precision Measurements in Electronics
In electronics, many signals are measured in millivolts (mV) rather than volts. Sensor outputs, thermocouple readings, audio signals, and biological measurements (like EKG) all operate in the millivolt range. Converting volts to millivolts is simply multiplying by 1,000, since "milli" means one-thousandth. This conversion is essential for Arduino analog inputs, oscilloscope readings, and amplifier design.
- Take the voltage value in volts (V).
- Multiply by 1,000.
- The result is the voltage in millivolts (mV).
- Example: 0.5 V × 1,000 = 500 mV.
Volts to Millivolts Common Electronics Values
Voltage levels frequently encountered in electronics projects and sensor work:
| Volt | Millivolt |
|---|---|
| 0.001 V | 1 mV |
| 0.005 V | 5 mV |
| 0.01 V | 10 mV |
| 0.1 V | 100 mV |
| 0.5 V | 500 mV |
| 1 V | 1,000 mV |
| 3.3 V | 3,300 mV |
| 5 V | 5,000 mV |
Solved: Volts to Millivolts in Electronics
Question 1: A temperature sensor outputs 0.247 V. Express in millivolts.
Solution:
mV = V × 1,000
= 0.247 × 1,000
= 247 mV
Answer: 0.247 V = 247 mV — a typical LM35 sensor output at about 24.7°C.
Question 2: An op-amp has an input offset voltage of 0.002 V. Convert to mV.
Solution:
mV = V × 1,000
= 0.002 × 1,000
= 2 mV
Answer: 0.002 V = 2 mV — this offset must be compensated in precision circuits.
Question 3: A guitar pickup produces a signal of 0.15 V peak-to-peak. What is that in mV?
Solution:
mV = V × 1,000
= 0.15 × 1,000
= 150 mV
Answer: 0.15 V = 150 mV p-p — a typical passive pickup output before the preamp.
Practice: Volts to Millivolts
Try solving these on your own to test your understanding:
- Convert 0.033 V to millivolts. (Answer: 33 mV)
- An ADC reads 1.65 V. Express in mV. (Answer: 1,650 mV)
- Convert 0.0048 V to mV. (Answer: 4.8 mV)
- A battery voltage drop is 0.72 V. What is that in mV? (Answer: 720 mV)
- Convert 2.5 V to millivolts. (Answer: 2,500 mV)
Arduino ADC Resolution in Millivolts
The Arduino Uno has a 10-bit ADC with a 5V reference: 5000 mV ÷ 1024 = 4.88 mV per step. The ESP32 has a 12-bit ADC with 3.3V reference: 3300 mV ÷ 4096 = 0.806 mV per step. When your sensor signal is only a few millivolts (like a strain gauge at 2-10 mV), you need an instrumentation amplifier to boost the signal above the ADC resolution before digitizing.
Why Millivolts Matter in Audio
Audio line level is about 316 mV RMS (-10 dBV consumer standard) or 1,228 mV RMS (+4 dBu professional standard). Microphone outputs are even smaller: 1-100 mV depending on type. A dynamic mic might output 2 mV for quiet speech. Understanding these millivolt-level signals helps in choosing the right preamp gain and preventing noise from overwhelming your signal.
Key Takeaways
- Multiply volts by 1,000 to get millivolts.
- Arduino Uno ADC resolution: ~4.88 mV per step.
- Most sensor outputs (thermocouples, strain gauges) are in the 1-100 mV range.
- 3.3V logic = 3,300 mV; 5V logic = 5,000 mV.
- Audio signals range from ~2 mV (mic) to ~1,228 mV (pro line level).
Volt to Millivolt Conversion Formula
millivolt = volt × 1000.0000000
1 volt = 1000.0000000 millivolt
1 millivolt = 0.0010000 volt
Reverse: volt = millivolt × 0.0010000
Frequently Asked Questions
How many millivolt are in 1 volt?
There are 1000.0000000 millivolt in 1 volt. To convert volt to millivolt, multiply the value by 1000.0000000.
How do I convert volt to millivolt?
Multiply your volt value by 1000.0000000 to get the equivalent in millivolt. For example, 5 volt = 5 × 1000.0000000 = 5000.00000 millivolt.
How do I convert millivolt to volt?
Multiply your millivolt value by 0.0010000 to get the equivalent in volt. Alternatively, divide by 1000.0000000.
What is 10 volt in millivolt?
10 volt is equal to 10000.00000 millivolt.
What is 100 volt in millivolt?
100 volt is equal to 100000.00000 millivolt.