About Voltage Drop Calculator

Professional electrical calculation tools designed by engineers for electricians, engineers, and electrical professionals worldwide.

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Our Mission

We provide free, professional-grade electrical calculation tools that help electricians and engineers ensure safe, code-compliant installations. Our tools are based on the latest NEC standards and industry best practices.

Every calculation is verified against established electrical engineering principles and real-world scenarios to ensure accuracy and reliability.

Key Features

  • NEC Compliant Calculations
  • Multi-Phase System Support
  • Material-Specific Calculations
  • Professional Reporting
  • Mobile-Friendly Interface

What Makes Us Different

Educational Focus

Not just results - we explain the calculations and provide learning resources to help you understand the underlying principles.

Code Compliance

All calculations are based on current NEC standards with automatic compliance checking and clear status indicators.

Community Driven

Built with input from practicing electricians and engineers to ensure real-world applicability and ease of use.

Technical Standards

Code Compliance

  • • National Electrical Code (NEC)
  • • IEEE Electrical Installation Standards
  • • IEC 60364 International Standards
  • • Local code adaptations

Calculation Accuracy

  • • Temperature-corrected resistance values
  • • Material-specific conductivity
  • • Phase-accurate multipliers
  • • Precision to 0.01V accuracy

Our Commitment

Free and Accessible

We believe professional electrical calculation tools should be accessible to everyone. Our core features are free to use, with optional premium features for advanced users.

No registration required, no data tracking, just professional tools when you need them.

Continuous Improvement

We regularly update our tools based on code changes, user feedback, and technological advances to ensure you always have access to the most current information.

50K+
Calculations Monthly
99.9%
Accuracy Rate

Questions or Feedback?

We'd love to hear from you. Contact us with questions, suggestions, or feedback.

Get In Touch