⚡ Electricity Converter - Complete Guide
What is the Electricity Converter?
The Electricity Converter is a comprehensive electrical engineering tool that converts electrical units across 15 categories. It's designed for electrical engineers, electronics technicians, students, and anyone working with electrical systems.
From charge and current to voltage and capacitance, this converter handles all essential electrical engineering conversions with precision.
Key Features
- 15 Categories: Charge, Current, Voltage, Resistance, Capacitance, Inductance, and more
- 100+ Units: Comprehensive coverage of SI, CGS, and specialized units
- Scientific Notation: Handles very large and very small values
- High Precision: 6 decimal places in scientific notation
- Bidirectional Conversion: Convert between any units in the same category
- SI & CGS Systems: Supports both measurement systems
- Instant Results: Real-time conversion calculations
- Free to Use: No registration required
How to Use the Electricity Converter
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Select Category:
Choose the type of electrical conversion (Charge, Current, Voltage, etc.).
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Enter Value:
Type the numerical value you want to convert.
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Select Source Unit:
Choose the unit you're converting FROM (e.g., Coulomb, Ampere, Volt).
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Select Target Unit:
Choose the unit you're converting TO (e.g., mAh, mA, kV).
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Click Convert:
Press the "Convert / تحويل" button to see the result.
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View Results:
The converted value appears in scientific notation for precision.
15 Electrical Categories
1. ⚡ Electric Charge
Units: Coulomb (C), Millicoulomb (mC), Microcoulomb (μC), Nanocoulomb (nC), Picocoulomb (pC), Ampere-hour (Ah), Milliampere-hour (mAh), Elementary charge (e)
Common Uses: Battery capacity, electrostatics, particle physics
Example: 1000 mAh = 3.6 C
Formula: Q = I × t (Charge = Current × Time)
2. 📏 Linear Charge Density
Units: Coulomb/meter (C/m), Coulomb/centimeter (C/cm), Coulomb/inch (C/in), Abcoulomb/meter (abC/m)
Common Uses: Charged wires, transmission lines, electrostatics
Formula: λ = Q / L (Linear charge density = Charge / Length)
3. 📐 Surface Charge Density
Units: Coulomb/meter² (C/m²), Coulomb/centimeter² (C/cm²), Coulomb/inch² (C/in²)
Common Uses: Capacitor plates, charged surfaces, electrostatics
Formula: σ = Q / A (Surface charge density = Charge / Area)
4. 📦 Volume Charge Density
Units: Coulomb/meter³ (C/m³), Coulomb/centimeter³ (C/cm³), Coulomb/inch³ (C/in³)
Common Uses: Charged volumes, plasma physics, semiconductors
Formula: ρ = Q / V (Volume charge density = Charge / Volume)
5. 🔌 Electric Current
Units: Ampere (A), Kiloampere (kA), Milliampere (mA), Microampere (μA), Nanoampere (nA), Picoampere (pA), Abampere (abA), Statampere (statA)
Common Uses: Circuit analysis, power systems, electronics
Example: 1 A = 1000 mA = 1,000,000 μA
Formula: I = Q / t (Current = Charge / Time)
6. 📏 Linear Current Density
Units: Ampere/meter (A/m), Ampere/centimeter (A/cm), Ampere/inch (A/in)
Common Uses: Magnetic field calculations, current sheets
Formula: K = I / L (Linear current density = Current / Length)
7. 📐 Surface Current Density
Units: Ampere/meter² (A/m²), Ampere/centimeter² (A/cm²), Ampere/inch² (A/in²), Ampere/millimeter² (A/mm²)
Common Uses: Wire sizing, conductor design, current distribution
Example: 1 A/mm² = 1,000,000 A/m²
Formula: J = I / A (Current density = Current / Area)
8. ⚡ Electric Field Strength
Units: Volt/meter (V/m), Kilovolt/meter (kV/m), Volt/centimeter (V/cm), Volt/inch (V/in), Newton/coulomb (N/C)
Common Uses: Electrostatics, dielectric breakdown, antenna design
Example: 1 kV/m = 1000 V/m
Formula: E = V / d (Electric field = Voltage / Distance)
9. 🔋 Electric Potential (Voltage)
Units: Volt (V), Kilovolt (kV), Millivolt (mV), Microvolt (μV), Nanovolt (nV), Statvolt (statV), Abvolt (abV)
Common Uses: Power systems, electronics, circuit design
Example: 1 kV = 1000 V = 1,000,000 mV
Formula: V = I × R (Voltage = Current × Resistance) - Ohm's Law
10. 🔌 Electric Resistance
Units: Ohm (Ω), Kiloohm (kΩ), Megaohm (MΩ), Milliohm (mΩ), Microohm (μΩ), Statohm (statΩ), Abohm (abΩ)
Common Uses: Resistor values, circuit design, impedance matching
Example: 1 kΩ = 1000 Ω, 1 MΩ = 1,000,000 Ω
Formula: R = V / I (Resistance = Voltage / Current) - Ohm's Law
11. 📊 Electric Resistivity
Units: Ohm-meter (Ω·m), Ohm-centimeter (Ω·cm), Ohm-millimeter (Ω·mm), Microohm-meter (μΩ·m), Microohm-centimeter (μΩ·cm)
Common Uses: Material properties, conductor selection, semiconductor characterization
Example: Copper: ρ ≈ 1.68 × 10⁻⁸ Ω·m
Formula: ρ = R × A / L (Resistivity = Resistance × Area / Length)
12. 🔌 Electric Conductance
Units: Siemens (S), Millisiemens (mS), Microsiemens (μS), Nanosiemens (nS), Mho (℧)
Common Uses: Conductivity measurements, circuit analysis
Example: 1 S = 1000 mS = 1,000,000 μS
Formula: G = 1 / R (Conductance = 1 / Resistance)
13. 📊 Electric Conductivity
Units: Siemens/meter (S/m), Siemens/centimeter (S/cm), Millisiemens/meter (mS/m), Microsiemens/centimeter (μS/cm)
Common Uses: Material characterization, water quality, semiconductor properties
Example: Copper: σ ≈ 5.96 × 10⁷ S/m
Formula: σ = 1 / ρ (Conductivity = 1 / Resistivity)
14. 🔋 Electrostatic Capacitance
Units: Farad (F), Millifarad (mF), Microfarad (μF), Nanofarad (nF), Picofarad (pF), Abfarad (abF), Statfarad (statF)
Common Uses: Capacitor values, energy storage, filtering circuits
Example: 1 μF = 1000 nF = 1,000,000 pF
Formula: C = Q / V (Capacitance = Charge / Voltage)
15. 🧲 Inductance
Units: Henry (H), Millihenry (mH), Microhenry (μH), Nanohenry (nH), Picohenry (pH), Abhenry (abH), Stathenry (statH)
Common Uses: Inductor values, transformers, magnetic circuits, RF circuits
Example: 1 mH = 1000 μH = 1,000,000 nH
Formula: V = L × (dI/dt) (Voltage = Inductance × Rate of current change)
Common Use Cases
🔌 Circuit Design
Convert resistor, capacitor, and inductor values for circuit design and analysis.
🔋 Battery Specifications
Convert battery capacity from mAh to Coulombs or Ampere-hours.
⚡ Power Systems
Convert voltage and current for power distribution and transmission.
📡 RF Engineering
Convert inductance and capacitance for antenna and RF circuit design.
🔬 Electronics Lab
Convert between different unit scales for measurements and specifications.
🎓 Electrical Education
Learn and practice electrical engineering unit conversions.
Examples
Example 1: Battery Capacity
Input: 2000 mAh
Output: 7.2 C (Coulombs)
Use Case: Converting smartphone battery capacity to SI units
Example 2: Current Conversion
Input: 500 mA
Output: 0.5 A = 500,000 μA
Use Case: Converting circuit current to different scales
Example 3: Voltage Conversion
Input: 12 kV
Output: 12,000 V = 12,000,000 mV
Use Case: Converting transmission line voltage
Example 4: Capacitance Conversion
Input: 100 μF
Output: 0.0001 F = 100,000 nF = 100,000,000 pF
Use Case: Converting capacitor values for circuit design
Example 5: Resistance Conversion
Input: 4.7 kΩ
Output: 4700 Ω = 0.0047 MΩ
Use Case: Converting resistor values
Tips & Best Practices
- ✅ Scientific Notation: Results use scientific notation (e.g., 1.5e-6) for very large or small values
- ✅ Unit Prefixes: Understand SI prefixes: k (kilo, 10³), m (milli, 10⁻³), μ (micro, 10⁻⁶), n (nano, 10⁻⁹), p (pico, 10⁻¹²)
- ✅ Ohm's Law: Remember V = I × R for voltage, current, and resistance relationships
- ✅ Battery Capacity: 1 Ah = 3600 C (1 hour = 3600 seconds)
- ✅ Component Values: Standard resistor/capacitor values follow E-series (E12, E24, E96)
- ✅ CGS Units: Abampere, statampere, and other CGS units are mainly used in physics
- ⚠️ Precision: Very small values (pA, pF, pH) require careful measurement equipment
- ⚠️ Context Matters: Ensure you're using the correct unit for your application
Frequently Asked Questions
Q: What's the difference between Coulomb and Ampere-hour?
A: Both measure electric charge. 1 Ampere-hour (Ah) = 3600 Coulombs (C). Ah is commonly used for battery capacity, while Coulomb is the SI unit.
Q: How do I convert mAh to Coulombs?
A: Multiply mAh by 3.6. For example: 1000 mAh = 1000 × 3.6 = 3600 C = 3.6 C.
Q: What is the relationship between resistance and conductance?
A: Conductance (G) is the reciprocal of resistance (R): G = 1/R. If R = 100 Ω, then G = 0.01 S (Siemens).
Q: Why are results shown in scientific notation?
A: Electrical values can range from very small (picoamperes) to very large (kilovolts). Scientific notation (e.g., 1.5e-6) ensures precision across all scales.
Q: What are abampere and statampere?
A: These are CGS (centimeter-gram-second) system units. Abampere is used in electromagnetic CGS, statampere in electrostatic CGS. They're mainly used in physics, not practical engineering.
Q: Can I use this for professional electrical work?
A: Yes, the conversions use standard conversion factors. However, always verify critical calculations and follow electrical codes and safety standards.
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Start using the Electricity Converter now for accurate electrical engineering conversions across 15 categories.
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