## Formulas and Calculators

Wire and cable formulas and calculators can be found here.

### Metric Conversion Factors for Commonly Used Units

 Category To Convert From To Multiple by Acceleration $ft/s^2$ $m^2/s^2$ $0.3048$ $in/s^2$ $m^2/s^2$ $2.5400x10^{-2}$ Area $ft^2$ $m^2$ $9.29030x10^{-2}$ $in^2$ $m^2$ $6.4516x10^{-4}$ Density $g/cm^3$ $kg/m^3$ $1.0000x10^3$ $in^2$ $m^2$ $6.4516x10^{-4}$

General Formula: Ohms/M Ft = $\frac{1000 R}{D^2}$

$^d0000 = (K^{39})(d_{36})$

Solving for K:

K=$\sqrt [39] {\frac {0.4600}{0.0050}}$