0.5 mm²
- Conductor area
- 0.5 mm²
- Equivalent solid diameter
- 0.798 mm
- Nearest geometric AWG
- 20 AWG
More dimensions
- AWG area minus metric
- 0.018 mm²
VALICALC · TECHNICAL REFERENCE
Metric Cable Size Chart
Compare nominal metric conductor areas, equivalent solid diameters and nearby AWG sizes. Use a selected area in the voltage-drop calculation.
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Search within the verified subset. Numeric sizes match complete designations; a nearby size is a candidate, not an exact match.
SELECTED REFERENCE
4 mm²
- Conductor area
- 4 mm²
- Equivalent solid diameter
- 2.257 mm
- Nearest geometric AWG
- 11 AWG
All fields & cell provenance
- AWG area minus metric
- 0.172 mm²
- Nominal area: Copper wire tables — Authored listed area scenario and circular geometry · verified 2026-10-06 · source value 4 mm².
- Conductor area: Copper wire tables — Authored listed area scenario and circular geometry · verified 2026-10-06 · source value 4.
- Equivalent solid diameter: Copper wire tables — Authored listed area scenario and circular geometry · verified 2026-10-06.
- Nearest geometric AWG: Copper wire tables — Authored listed area scenario and circular geometry · verified 2026-10-06 · source value 11 AWG.
- AWG area minus metric: Copper wire tables — Authored listed area scenario and circular geometry · verified 2026-10-06.
v1.2.0 · verified 2026-10-06
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Explore the verified data
22 matching rows · 22 in this subset
| Nominal area | Conductor area | Equivalent solid diameter | Nearest geometric AWG | Actions |
|---|---|---|---|---|
| 0.5 mm² | 0.5 mm² | 0.798 mm | 20 AWG | |
| 0.75 mm² | 0.75 mm² | 0.977 mm | 18 AWG | |
| 1 mm² | 1 mm² | 1.128 mm | 17 AWG | |
| 1.5 mm² | 1.5 mm² | 1.382 mm | 15 AWG | |
| 2.5 mm² | 2.5 mm² | 1.784 mm | 13 AWG | |
| 4 mm² | 4 mm² | 2.257 mm | 11 AWG | |
| 6 mm² | 6 mm² | 2.764 mm | 9 AWG | |
| 10 mm² | 10 mm² | 3.568 mm | 7 AWG | |
| 16 mm² | 16 mm² | 4.514 mm | 5 AWG | |
| 25 mm² | 25 mm² | 5.642 mm | 3 AWG | |
| 35 mm² | 35 mm² | 6.676 mm | 2 AWG | |
| 50 mm² | 50 mm² | 7.979 mm | 1/0 AWG | |
| 70 mm² | 70 mm² | 9.441 mm | 2/0 AWG | |
| 95 mm² | 95 mm² | 10.998 mm | 3/0 AWG | |
| 120 mm² | 120 mm² | 12.361 mm | 4/0 AWG | |
| 150 mm² | 150 mm² | 13.82 mm | 4/0 AWG | |
| 185 mm² | 185 mm² | 15.348 mm | 4/0 AWG | |
| 240 mm² | 240 mm² | 17.481 mm | 4/0 AWG | |
| 300 mm² | 300 mm² | 19.544 mm | 4/0 AWG | |
| 400 mm² | 400 mm² | 22.568 mm | 4/0 AWG |
0.75 mm²
- Conductor area
- 0.75 mm²
- Equivalent solid diameter
- 0.977 mm
- Nearest geometric AWG
- 18 AWG
More dimensions
- AWG area minus metric
- 0.073 mm²
1 mm²
- Conductor area
- 1 mm²
- Equivalent solid diameter
- 1.128 mm
- Nearest geometric AWG
- 17 AWG
More dimensions
- AWG area minus metric
- 0.038 mm²
1.5 mm²
- Conductor area
- 1.5 mm²
- Equivalent solid diameter
- 1.382 mm
- Nearest geometric AWG
- 15 AWG
More dimensions
- AWG area minus metric
- 0.15 mm²
2.5 mm²
- Conductor area
- 2.5 mm²
- Equivalent solid diameter
- 1.784 mm
- Nearest geometric AWG
- 13 AWG
More dimensions
- AWG area minus metric
- 0.124 mm²
4 mm²
- Conductor area
- 4 mm²
- Equivalent solid diameter
- 2.257 mm
- Nearest geometric AWG
- 11 AWG
More dimensions
- AWG area minus metric
- 0.172 mm²
6 mm²
- Conductor area
- 6 mm²
- Equivalent solid diameter
- 2.764 mm
- Nearest geometric AWG
- 9 AWG
More dimensions
- AWG area minus metric
- 0.634 mm²
10 mm²
- Conductor area
- 10 mm²
- Equivalent solid diameter
- 3.568 mm
- Nearest geometric AWG
- 7 AWG
More dimensions
- AWG area minus metric
- 0.549 mm²
16 mm²
- Conductor area
- 16 mm²
- Equivalent solid diameter
- 4.514 mm
- Nearest geometric AWG
- 5 AWG
More dimensions
- AWG area minus metric
- 0.773 mm²
25 mm²
- Conductor area
- 25 mm²
- Equivalent solid diameter
- 5.642 mm
- Nearest geometric AWG
- 3 AWG
More dimensions
- AWG area minus metric
- 1.67 mm²
35 mm²
- Conductor area
- 35 mm²
- Equivalent solid diameter
- 6.676 mm
- Nearest geometric AWG
- 2 AWG
More dimensions
- AWG area minus metric
- -1.369 mm²
50 mm²
- Conductor area
- 50 mm²
- Equivalent solid diameter
- 7.979 mm
- Nearest geometric AWG
- 1/0 AWG
More dimensions
- AWG area minus metric
- 3.475 mm²
70 mm²
- Conductor area
- 70 mm²
- Equivalent solid diameter
- 9.441 mm
- Nearest geometric AWG
- 2/0 AWG
More dimensions
- AWG area minus metric
- -2.569 mm²
95 mm²
- Conductor area
- 95 mm²
- Equivalent solid diameter
- 10.998 mm
- Nearest geometric AWG
- 3/0 AWG
More dimensions
- AWG area minus metric
- -9.971 mm²
120 mm²
- Conductor area
- 120 mm²
- Equivalent solid diameter
- 12.361 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -12.781 mm²
150 mm²
- Conductor area
- 150 mm²
- Equivalent solid diameter
- 13.82 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -42.781 mm²
185 mm²
- Conductor area
- 185 mm²
- Equivalent solid diameter
- 15.348 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -77.781 mm²
240 mm²
- Conductor area
- 240 mm²
- Equivalent solid diameter
- 17.481 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -132.781 mm²
300 mm²
- Conductor area
- 300 mm²
- Equivalent solid diameter
- 19.544 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -192.781 mm²
400 mm²
- Conductor area
- 400 mm²
- Equivalent solid diameter
- 22.568 mm
- Nearest geometric AWG
- 4/0 AWG
More dimensions
- AWG area minus metric
- -292.781 mm²
How to use this data
Equivalent solid diameter d = √(4A/π). Compare AWG by geometric area distance. Nominal area is not the measured OD of stranded or insulated cable.
CHECK THE METHOD
Worked example
A nominal 4 mm² area has an equivalent solid diameter of about 2.257 mm. The nearby AWG size differs in area and remains a separate product designation.
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Common lookup questions
Can I use these values as a universal specification?
Geometry and bulk resistance do not establish ampacity, installation method, insulation rating, derating or electrical-code compliance. Diameter is the equivalent bare solid conductor, not finished cable OD.
TRACEABLE DATA
Sources, scope & verification
Dataset v1.2.0
Last verified:
22 nominal metric areas already used by Voltage Drop, 0.5–630 mm². This is an authored candidate series, not a reproduction of IEC tolerances or maximum resistance tables.
Values are curated product facts or generated scenarios. Paid standards, complete catalogs and source diagrams are not reproduced. A verification date applies to this documented subset.
Copper wire tables ↗
Type A · US Bureau of Standards · Circular 31, 2nd edition, 1914
Original generated scenarios from the stated equations; source tables/text/drawings are not reproduced.
Full provenance & artifact record
- Source checked
- 2026-10-06
- Use basis
- authored-formula
- Artifact SHA-256
- No retained source artifact hash; see the stated source and verification record.