Impedance Converter
Convert between different units of impedance with precision and ease.
Impedance Converter
Instant conversion between impedance units
⚡ Popular Conversions
About Impedance Conversion
Standard Units
Basic impedance measurement units.
- • Ohm (Ω) - Base SI unit
- • mΩ - Milliohm (10⁻³ Ω)
- • µΩ - Microohm (10⁻⁶ Ω)
- • Low resistance - Contact resistance
Large Units
High impedance measurement units.
- • kΩ - Kiloohm (10³ Ω)
- • MΩ - Megaohm (10⁶ Ω)
- • GΩ - Gigaohm (10⁹ Ω)
- • Insulation - High resistance
Common Values
Typical impedance values.
- • Speakers - 4-16 Ω
- • Headphones - 32-600 Ω
- • Coax cable - 50-75 Ω
- • Guitar pickup - 7-15 kΩ
Applications
Where impedance matters.
- • Audio systems - Speaker matching
- • RF systems - Signal transmission
- • Power systems - Load analysis
- • Electronics - Circuit design
- • Testing - Quality control
Understanding Impedance Units
Impedance is the total opposition to alternating current (AC) in a circuit, measured in ohms (Ω) as the base SI unit. Unlike resistance, impedance includes both resistive and reactive components from inductors and capacitors.
In electronic design, impedance matching is crucial for maximum power transfer, signal integrity, and preventing reflections. Audio systems, RF circuits, and transmission lines all require careful impedance considerations for optimal performance.
The distinction between impedance and resistance is important for AC circuits. While resistance opposes current flow regardless of frequency, impedance varies with frequency due to reactive components.
Characteristic impedance is fundamental in transmission line theory, affecting signal propagation in cables, PCB traces, and waveguides. Common values include 50Ω for RF systems and 75Ω for video applications.
Modern test equipment and simulation software require accurate impedance measurements for network analysis, antenna design, and EMC compliance testing across various frequency ranges and applications.