# Wire Resistance Calculator

## Quick Calculator

### Wire Resistance

___ ohms (Results are rounded to the nearest milliohm.)

All resistance values in ohms. All wire gauges in AWG. All wire is copper.

Select Unit of Measure

___ ohms

___ ohms

___ ohms

___ ohms

___ ohms

### Wire Resistance Results

#### Expected Resistance

2-wire measurement: ___ ohms

4-wire measurement (points combine at A and B): ___ ohms

4-wire measurement (points combine on DUT): ___ ohms

### Step 2: Factor in the Variations

Variations

___%

Accuracy of Tester

### Recommended Thresholds

Highest Expected Resistance for 2-wire: ___ ohms

Highest Expected Resistance for 4-wire (points combine at A and B): ___ ohms

Highest Expected Resistance for true 4-wire (points combine on DUT): ___ ohms

## Wire Resistance Table

 Typical Uses Wire Gauge # Diameter (Mils) Area Diameter Ohms per 100 ft. Ohms per 10 ft. Ohms per 1 ft. House Wiring 12 80.808 6,529.90 0.15880 0.015880 0.001588 13 71.901 5,178.40 0.20030 0.020030 0.002003 Heavy Power Wire 14 64.084 4,106.80 0.25250 0.025250 0.002525 15 57.068 3,256.70 0.31840 0.03184 0.00318 Heavy Hook-up 16 50.820 2,582.90 0.40160 0.04016 0.00402 17 45.257 2,048.20 0.50640 0.05064 0.00506 Standard ComputerPower Cables 18 40.303 1,624.30 0.63850 0.06385 0.00639 19 35.890 1,288.10 0.80510 0.08051 0.00805 Standard Hook-up 20 31.961 1,021.50 1.01500 0.10150 0.01015 25 17.900 320.40 3.23700 0.32370 0.03237 Interface 22 25.347 642.40 1.61400 0.16140 0.01614 23 22.571 509.45 2.03600 0.20360 0.02036 Standard Hook-up 24 20.100 404.01 2.56700 0.25670 0.02567 25 17.900 320.40 3.23700 0.32370 0.03237 Heavy .050Ribbon Cable 26 15.940 254.10 4.08100 0.40810 0.04081 27 14.195 201.50 5.14700 0.51470 0.05147 Std. .050 Ribbon Cable 28 12.641 159.79 6.49000 0.64900 0.06490 29 11.257 126.72 8.18300 0.81830 0.08183 Std. .025 pitch Ribbon Cable / Solid Wire forWire Wrap 30 10.025 100.50 10.32000 1.03200 0.10320

For pullout force information see our Pullout Force Comparison.