Electrical Calculator: Tools is a simple, practical electrical calculator designed for electricians, technicians, electrical engineers, students, and anyone working with electrical calculations.
Calculate common electrical values quickly without switching between different tools or searching for formulas.
⚡ ELECTRICAL CALCULATORS
• Voltage Drop Calculator
• Cable / Wire Size Calculator
• Ohm's Law Calculator
• Power Calculator
• Voltage, Current & Resistance
• AC & DC calculations
• Single-phase & three-phase calculations
• Electrical unit conversions
• And more practical electrical tools
🔧 BUILT FOR THE FIELD
Get clear results with simple inputs and an easy-to-understand calculation flow. Each result is designed to help you understand not only the answer, but also how it was calculated.
WHY? — Understand the result
FORMULA — See the calculation
EXPLAIN — Understand what the result means
📚 ELECTRICAL REFERENCES
Quickly access useful electrical reference information including formulas, symbols, colour codes, units and other practical reference material.
🌍 MULTIPLE ELECTRICAL STANDARDS
Select the applicable electrical standard where supported, with standard-specific calculations and reference information designed for different regions.
Standards such as IEC, NEC, BS 7671, IS, and AS/NZS can be supported as the relevant calculation modules are implemented and verified.
📁 HISTORY & PROJECTS
Save calculations, revisit previous results, and keep useful calculations organized for future work.
⚡ SIMPLE. PRACTICAL. ELECTRICAL.
Whether you're checking voltage drop, calculating power, sizing a cable, or reviewing an electrical formula, Electrical Calculator: Tools puts useful calculations in one place.
Important: Calculations are provided as a technical reference tool. Always verify results against the electrical standards and regulations applicable to your installation and jurisdiction, and consult a qualified electrical professional where required.
Electrical calculators for electricians: voltage drop, power, cable size & more.