WIRE GAUGE CHARTS
10 wire in mm
Thickness: 2.59 mm diameter (0.102 inches), 5.26 mm² cross-section of solid copper.
Specifications
- Diameter
- 2.59 mm
- Diameter (imperial)
- 0.102 in
- Cross-section
- 5.26 mm²
- Area (kcmil)
- 10.4
- Copper resistance
- 0.999 Ω/1000 ft
- Copper resistance (metric)
- 3.28 Ω/km
- Copper weight
- 47.1 g/m
- Ampacity (NEC 75 °C)
- 35 A
Nearest metric sizes
5.26 mm² does not match a standard metric cable size exactly. The closest conventional cross-sections are2.5 mm², 4 mm² and 6 mm²— engineers round this wire up (larger cross-section) for ampacity, or accept the raw equality for signal work.
One gauge away:11 · thinner9 · thickerFull chart →
Frequently asked questions
Is 10 gauge wire thick or thin?
10 gauge wire is 2.59 mm in diameter. On the AWG scale a lower number means a thicker wire, so 10 AWG sits in the mid-power range used for appliances and small feeders.
How many amps can 10 gauge wire carry?
NEC Table 310.16 rates 10 AWG copper at 35 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 10 wire in millimeters?
10 gauge wire is 2.59 mm (0.102 in) in diameter, with a solid-conductor cross-section of 5.26 mm².