Voltage Converter
Convert between different units of voltage measurement including volts, millivolts, kilovolts, abvolts, statvolts, and more. Essential for electrical engineering and electronics applications.
Conversion Settings
No value entered
Conversion Result
Conversion result will appear here
Enter a value and click "Convert" to start
Common Voltage Conversions
⚡ Voltage Types & Measurements
Peak Voltage (V_peak): Maximum instantaneous voltage
RMS Voltage (V_rms): Root Mean Square, effective voltage (AC)
Peak-to-Peak (V_pp): Difference between positive and negative peaks
Average Voltage (V_avg): Full-wave rectified average over one period
For sine waves: V_rms = V_peak / √2 ≈ 0.707 × V_peak
⚠️ Safety Warning
High voltages can be extremely dangerous and potentially lethal.
Low Voltage: < 50V (generally safe)
High Voltage: > 1kV (requires special precautions)
Extra High Voltage: > 100kV (transmission lines)
Always follow proper safety procedures when working with electrical systems.
🔬 Applications by Voltage Range
About Voltage Converter
A specialized voltage converter that handles precise conversions between various electrical voltage units including volts, millivolts, kilovolts, and specialized units like abvolts and statvolts. This professional tool is designed for electrical engineering, electronics design, and scientific applications requiring accurate voltage measurements.
Why use a Voltage Converter?
Critical for electrical engineers designing circuits, electronics technicians troubleshooting equipment, and researchers working with electrical measurements. Ensures accurate voltage conversions for component selection, safety calculations, and system specifications while preventing costly errors in electrical design and testing.
Who is it for?
Essential for electrical engineers, electronics technicians, power system engineers, and students studying electrical engineering. Also valuable for physicists working with electromagnetic measurements, renewable energy professionals, and anyone involved in electrical equipment design or maintenance.
How to use the tool
Input your voltage value in the designated field
Select the source voltage unit from the comprehensive list
Choose your target voltage unit for conversion
View the converted result
Use the accurate voltage value for circuit design or electrical calculations
Frequently Asked Questions
How do I convert voltage units?
Enter the source value, pick the 'from' and 'to' units, and click Convert to see the result. Supports V (volt, SI), mV, μV, kV, MV, abvolt (CGS), statvolt (CGS), plus sine-wave peak, RMS, peak-to-peak and rectified-average voltage (assumes a pure sine wave; plain volts are treated as RMS/DC). Copy the converted value to clipboard. Conversion runs entirely in your browser — values never leave the device. Results are shown to up to 12 significant digits with trailing zeros removed; there is no precision setting.
What voltage units does this converter support?
V (volt, SI), mV, μV, kV, MV, abvolt (CGS), statvolt (CGS), and sine-wave peak / RMS / peak-to-peak / average voltage. The set covers SI base and derived units, common imperial/US-customary units, and domain-specific units where relevant. SI prefixes (k, M, G, m, μ, n) apply where applicable. For any unit not in the list that you need converted, mention it via feedback — the unit set evolves based on user requests.
How accurate is the voltage conversion?
Conversions use the internationally-defined factors where they exist; the result is rounded to 12 significant digits for display. Since the 2019 SI redefinition, the volt is derived from the elementary charge and Planck constant. CGS units (abvolt = 10⁻⁸ V, statvolt ≈ 299.79 V) included for completeness. Output is rounded to 12 significant digits for display, and there is no setting to change that.
What's the formula to convert millivolts (mV) to volts (V)?
V = mV ÷ 1,000. Electronics design (mV signals from sensors; V for power rails; kV for high-voltage circuits), power transmission (kV/MV for long-distance lines), battery specs. For other voltage-unit pairs, the tool applies the appropriate exact conversion factor automatically — no manual formula needed. Results are rounded to 12 significant digits, which is more than engineering specs typically need.
What's the key accuracy caveat for voltage conversion?
**Voltage is electric potential difference, measured in volts (V)** — the SI unit. Practical contexts: AA battery (1.5 V), USB (5 V), household mains (110-240 V depending on country), high-voltage power lines (kV to MV range). The older CGS units (abvolt, statvolt) are rarely used outside academic physics. **'Voltage' vs 'EMF'** — closely related; voltage typically refers to measured potential, EMF (electromotive force) to ideal source voltage.
What's a common real-world use case for voltage conversion?
Electronics design (mV signals from sensors; V for power rails; kV for high-voltage circuits), power transmission (kV/MV for long-distance lines), battery specs.
What voltage units are commonly confused?
**V vs mV vs μV** — standard SI prefixes. **'AC' vs 'DC'** — alternating vs direct current; same units but different waveform. **Peak vs RMS voltage** — for AC, 'RMS voltage' (root-mean-square) is the effective DC-equivalent; peak voltage is √2 × RMS for sinusoidal waveforms.
How do I handle very large or very small voltage values?
Use SI prefixes for clean scaling: kilo (10³), mega (10⁶), giga (10⁹), milli (10⁻³), micro (10⁻⁶), nano (10⁻⁹). For very large or very small results, the tool switches to exponent notation (e.g. 1.23e15) at 1e15 and above or below 1e-9. Since the 2019 SI redefinition, the volt is derived from the elementary charge and Planck constant. CGS units (abvolt = 10⁻⁸ V, statvolt ≈ 299.79 V) included for completeness. For data interchange, copy the value; it is shown to 12 significant digits.
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