14 AWG Wire Gauge Chart

Property	Value
Gauge 14 Diameter (in)	0.0641 in
Gauge 14 Diameter (mm)	1.628 mm
Gauge 14 Turns of Wire (per inch)	15.6 turns/in
Gauge 14 Turns of Wire (per cm)	6.14 turns/cm
Gauge 14 Cross-Sectional Area (kcmil)	4.11 kcmil
Gauge 14 Cross-Sectional Area (mm²)	2.08 mm²
Copper Resistance (Ω/km or mΩ/m)	8.286 mΩ/m
Copper Resistance (Ω/kft or mΩ/ft)	2.525 mΩ/ft
NEC Copper Wire Ampacity (60°C)	20 A
NEC Copper Wire Ampacity (75°C)	20 A
NEC Copper Wire Ampacity (90°C)	25 A
Fusing Current (10 s)	166.0 A
Fusing Current (1 s)	633.0 A
Fusing Current (32 ms)	3500.0 A

Frequently Asked Questions (FAQs) About 14 AWG Wire

What does AWG stand for?

AWG stands for American Wire Gauge, a standardized system for measuring wire sizes. The smaller the AWG number, the larger the wire diameter.

How does 14 AWG compare to 13 AWG?

14 AWG wire is smaller than 13 AWG, with a diameter of 1.628 mm compared to 1.828 mm for 13 AWG. It has the same ampacity (25 A at 90°C) but a smaller cross-sectional area and higher resistance.

What applications are suitable for 14 AWG wire?

14 AWG wire is commonly used for low-current household applications, such as lighting circuits, small appliances, or thermostat wiring, with an ampacity of up to 25 A at 90°C.

What happens if the fusing current is exceeded?

If the fusing current is exceeded (e.g., 166 A for 10 seconds in 14 AWG), the wire will overheat and melt, potentially causing a fire hazard or circuit failure.