Convert between different electrical units with ease
Convert between microampere (µA), milliampere (mA), ampere (A), and kiloampere (kA)
1 A = 1000 mA = 1,000,000 µA = 0.001 kA
Educational Use Only: This tool is designed for educational purposes, circuit analysis, and engineering calculations. It does not provide installation instructions or safety procedures for working with live electrical systems. Always consult qualified professionals and follow local electrical codes for real-world applications.
This converter handles ten fundamental electrical quantities essential for circuit analysis, design, and troubleshooting:
| Parameter | SI Unit | Symbol | Physical Meaning | Common Applications |
|---|---|---|---|---|
| Electric Current | Ampere (A) | I | Rate of charge flow through a conductor | Circuit analysis, fuse sizing, conductor selection |
| Voltage | Volt (V) | V | Electrical potential difference between two points | Power supply design, insulation ratings, safety margins |
| Resistance | Ohm (Ω) | R | Opposition to current flow in a conductor | Voltage dividers, current limiting, impedance matching |
| Power | Watt (W) | P | Rate of energy transfer or conversion | Component rating, energy efficiency, thermal management |
| Capacitance | Farad (F) | C | Ability to store electrical charge per unit voltage | Filter design, timing circuits, energy storage |
| Inductance | Henry (H) | L | Opposition to change in current, stores energy in magnetic field | Transformers, filters, switching regulators |
| Energy | Joule (J) | E, W | Capacity to do work or produce heat | Battery capacity, energy consumption, thermal analysis |
| Frequency | Hertz (Hz) | f | Number of cycles per second in periodic waveforms | AC circuits, signal processing, RF design |
| Electric Charge | Coulomb (C) | Q | Fundamental quantity of electricity | Electrostatic calculations, capacitor specifications |
| Conductance | Siemens (S) | G | Reciprocal of resistance, ease of current flow | Conductivity measurements, parallel resistance calculations |
All conversions follow the International System of Units (SI) with standard decimal prefixes:
A microcontroller requires 50 mA at 3.3V. Converting to base units: 50 mA = 0.05 A. Power consumption: P = V × I = 3.3V × 0.05A = 0.165W = 165 mW.
A bypass capacitor of 100 nF is needed. In microfarads: 100 nF = 0.1 µF. In picofarads: 100 nF = 100,000 pF. For more specialized capacitor calculations, you might find our capacitor code calculator helpful for decoding component markings.
A 2000 mAh battery stores: 2000 mAh = 2 Ah = 7200 C of charge (2 Ah × 3600 C/Ah). You can explore how this relates to device runtime using our battery life estimation tool.
A: Different scales are used for practical reasons. Microamps (µA) are used for sensor currents, milliamps (mA) for electronic circuits, amps (A) for power circuits, and kiloamps (kA) for industrial systems. The SI system provides prefixes to handle these ranges efficiently.
A: Unit conversions are mathematically exact. However, real-world components have tolerances (typically 1%, 5%, or 10%). This tool provides theoretical values; actual components may vary within their specified tolerance ranges.
A: This tool handles basic unit conversions only. Three-phase calculations require additional factors (√3 for line-to-line voltages) and phase angle considerations not included here. For that, we recommend our dedicated three-phase power calculator which handles those complexities.
A: Power (watts) is the rate of energy use. Energy (watt-hours) is power × time. A 100W device running for 10 hours uses 1000 Wh (1 kWh) of energy. To analyze your consumption patterns further, try our power consumption calculator.
A: Siemens (S) is the SI unit for conductance, defined as 1 S = 1 A/V. It's particularly useful when working with parallel resistances, as conductances add directly: Gtotal = G1 + G2 + ...
This unit converter complements other electrical engineering calculations including:
Formula Review: All conversion formulas verified against IEEE Standard 260.1-2004 and IEC 60027 standards.
Client-Side Processing: No data leaves your computer. All calculations performed locally using JavaScript.
Educational Focus: Designed by electrical engineers for students, technicians, and professionals.
Last Technical Review: September 2025 - Formulas verified for current electrical engineering standards.