WIRE GAUGE CHARTS
14 wire in mm
Thickness: 1.63 mm diameter (0.064 inches), 2.08 mm² cross-section of solid copper.
Specifications
- Diameter
- 1.63 mm
- Diameter (imperial)
- 0.064 in
- Cross-section
- 2.08 mm²
- Area (kcmil)
- 4.1
- Copper resistance
- 2.525 Ω/1000 ft
- Copper resistance (metric)
- 8.29 Ω/km
- Copper weight
- 18.6 g/m
- Ampacity (NEC 75 °C)
- 20 A
Nearest metric sizes
2.08 mm² does not match a standard metric cable size exactly. The closest conventional cross-sections are1 mm², 1.5 mm² and 2.5 mm²— engineers round this wire up (larger cross-section) for ampacity, or accept the raw equality for signal work.
One gauge away:15 · thinner13 · thickerFull chart →
Frequently asked questions
Is 14 gauge wire thick or thin?
14 gauge wire is 1.63 mm in diameter. On the AWG scale a lower number means a thicker wire, so 14 AWG sits in the mid-power range used for appliances and small feeders.
How many amps can 14 gauge wire carry?
NEC Table 310.16 rates 14 AWG copper at 20 A in the 75 °C column (see our amp chart for 60/75/90 °C ratings). Use the calculator to check voltage drop at your run length; long runs often force one size thicker.
What diameter is 14 wire in millimeters?
14 gauge wire is 1.63 mm (0.064 in) in diameter, with a solid-conductor cross-section of 2.08 mm².