Cable Cross Section Calculator
Calculate wire cross-sectional area for stranded cables
Cable Cross Section Calculator
Compliant with IEC 60228 Standards
Results:
Cross-Sectional Area: 0.00
Area in mm²: 0.00
Area in cm²: 0.00
Area in in²: 0.00
Calculation Details
How to Use the Calculator
Step 1: Count Strands
- Examine the cable cross-section
- Count the total number of individual strands
- Enter this value in the "Number of Strands" field
- Ensure accurate counting for precise results
Step 2: Measure Diameter
- Use calipers or micrometer for accuracy
- Measure diameter of a single strand
- Enter measurement in millimeters
- Take multiple measurements for consistency
Step 3: Calculate & Convert
- Select desired output units
- Click "Calculate" to get results
- View results in multiple units
- Use calculation details for verification
Cable Cross Section Fundamentals
Stranded Cables
Stranded cables consist of multiple thin wires:
- Better flexibility than solid conductors
- Reduced skin effect at high frequencies
- Improved fatigue resistance
- Total area = sum of individual strand areas
Cross-Sectional Area
- Determines current carrying capacity
- Affects voltage drop calculations
- Critical for cable sizing
- Measured in mm², cm², or circular mils
Key Formula:
Cross-Sectional Area: A = n × d² × π / 4
Simplified: A = 0.7854 × n × d²
Where: n = number of strands, d = strand diameter
Cable Sizing Guidelines
Current Capacity
- Larger cross-section = higher current capacity
- Consider ambient temperature
- Account for bundling factors
Voltage Drop
- Larger area reduces voltage drop
- Critical for long cable runs
- Affects system efficiency
Calculation Formulas
Cross-Sectional Area:
A = n × d² × π / 4
Simplified Formula:
A = 0.7854 × n × d²
Where:
A = Cross-sectional area
n = Number of strands
d = Diameter of single strand
Example Calculation
Stranded Cable Example:
Number of strands (n): 19
Strand diameter (d): 0.4 mm
A = 0.7854 × 19 × (0.4)²
A = 0.7854 × 19 × 0.16
A = 2.39 mm²
Result: 2.39 mm² cross-sectional area
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