Above is a small table showing the first 12 number places in binary and their decimal counterparts. Binary is set in Base 2, which just means 2 to the power set.

When converting a number from decimal to binary, you start with the largest power of 2 that can be taken from the decimal number with out going in to a negative figure.

When a power is taken out of a decimal number, that place is given a 1. If a power has been skipped over, the place is given a 0.

Let's use 536 as a example number. 536 in decimal.

When we look at the above chart we can see that 512 is the largest power of 2 that can be taken out of 536.

The 256, 128, 64 and 32 powers are each given a 0

Now we have 24 left, the next power is 16.

We are now left with 8 which is the 2³ power space.

The rest of the power places are given 0's

I the end we have, 1000011000 = 536

This table better shows the placement of the 1's and 0's for the decimal number of 536. The reverse prcess can be peformed to convert from binary to decimal. Take all numbers places with 1's and add them together to get a decimal form from the binary number.

First start with a decimal number - 175

We need to convert 175 to binary

We now take the binary version and group the 1's and 0's into groups of 4's.

These groups are now considered 2 seperate numbers in binary. 1010 and 1111. 1010 now equals 10 and 1111 equals 15. 10 in HEX is A (refer to table above) and 15 in HEX is F (refer to table above).

The number 175 is now found to be equal to AF in HEX.

Sometimes the number is binary does not have enough 1's and 0's to make even groups of 4's. Such as the number 701 = 1010111101

We have the groups, starting from the right, 1101, 1011 and then you have 10. You take the 10 and add 0's to the front to make a group of 4 such as 0010.

Now we have 0010, 1011 and 1101.

So, 701 equals 2BE in HEX

Octals are much like HEX. An octal number is created by taking a decimal number converting it to binary and then you group the 1's and 0's into groups of 3's.

Start with 315.

With 315 converted to binary, group the 1's and 0's into groups of 3's. The same rules apply with octals as HEX. If there are not enough to make even groups of 3, then the same rule still applies, add leading 0's untill the group has been made into 3.

315 = 473 in octal

The Ohm's Law Chart above visually shows how the formula works.

The Power Law Chart above visually shows how the formula works.