How to determine ohms based on wire gauge and length.

Resistance wire

OK, so I am not an expert but this is what I have compiled based on some basic research.
How to determine ohms based on wire gauge and length.

For 32 gauge wire, 10.6 ohms/12 = 0.8833 ohms per inch. 
To make a coil that is 1.5 ohms you need 1.69 inches of wire.

For 34 gauge, 17 ohms/12 = 1.4166 ohms per inch. 
To make a coil that is 2 ohms you would need 1.41 inches of wire

For 36 gauge, 27 ohms/12 = 2.25 ohms per inch. 
Not realistic for 1.5 ohms but for 3 ohms, 1.33 inch or wire would do it.

For 38 gauge, 42.2 Ohms/12 = 3.51 ohms per inch.
For 5 ohms, you would need 1.42 inches

The thinner the wire the higher the ohms per foot. Thinner wire would be more sensitive to breakage or burning out at high power.