Cable Calculator
Calculate the appropriate cable size for your electrical installation based on British (BS7671) or International (IEC 60364-5-52) standards
Input Parameters
Results
Enter parameters and click Calculate to see results
Acceptable Cable Size
The recommended cable size meets all requirements
Recommended Cable Size
25 mm²
Calculated Current
0 A
Max Current Rating
0 A
Voltage Drop
0 V
Voltage Drop %
0%
Important Notes
- • Results are calculated at power factor 0.8
- • Maximum voltage drop is limited to 3%
- • Calculations assume ambient temperature of 30°C
- • These results are a guide only - consult a qualified electrician
- • Always comply with local electrical regulations
About This Calculator
This cable calculator helps determine the appropriate cable size for electrical installations based on British (BS7671) and International (IEC 60364-5-52) standards.
The calculator considers current carrying capacity and voltage drop to recommend the minimum cable size that meets both requirements. The voltage drop is limited to 3% as per standard regulations.
Important: These calculations are provided as a guide only. Always consult with a qualified electrician and comply with local electrical codes and regulations before installation.
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Unsure Which Cable Type To Select?
Our Cable Selection Chart helps you choose the right cable specification for your project, covering low voltage to high voltage cables, installation methods, and application-specific guidance.
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