Electrical Calculators & Converters
Free online tools to convert between electrical units, calculate power, energy, and costs.
Convert watts to amps in AC and DC circuits with power factor consideration.
Convert voltage to current using Ohm's Law for any resistance or power.
Calculate voltage, current, resistance, and power using Ohm's Law formulas.
Convert kilowatts (power) to kilowatt-hours (energy) based on time of use.
Calculate electricity costs based on energy consumption and utility rates.
Determine proper wire gauge based on current, length, and voltage drop.
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About Electrical Calculators
Our collection of electrical calculators and converters helps you quickly solve common electrical problems. Whether you're an electrician, engineer, student, or DIY enthusiast, these tools make it easy to:
- Convert between different electrical units such as watts, amps, volts, and ohms
- Calculate energy consumption and costs
- Determine proper wire gauges for your electrical projects
- Apply Ohm's Law to solve for unknown electrical parameters
All calculations are performed instantly and provide accurate results based on standard electrical formulas.
Commonly Used Electrical Formulas
Our calculators use these fundamental electrical formulas:
- Ohm's Law: V = I × R (Voltage = Current × Resistance)
- Power: P = V × I (Power = Voltage × Current)
- AC Power: P = V × I × PF × √3 (for 3-phase) or P = V × I × PF (for single phase)
- Energy: E = P × t (Energy = Power × time)
- Energy Cost: Cost = E × Rate (Cost = Energy consumed × Price per unit)
Why Use Our Electrical Calculators?
Our electrical calculators stand out for their:
- Accuracy: Based on standard electrical engineering formulas
- Ease of use: Clean interface with instant calculations
- Comprehensiveness: Detailed explanations and reference tables
- Educational value: Learn about electrical concepts while using the tools
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