Binary to decimal and decimal to binary Algorithms

Convert decimal to binary: 
The result is 1 after 2 rounds.
Write the remainder and the last 1 in descending order as the result.
For example, 302
302/2 = 151 + 0
151/2 = 75 + 1
75/2 = 37 + 1
37/2 = 18 + 1
18/2 = 9 + 0
9/2 = 4 + 1
4/2 = 2 + 0
2/2 = 1 + 0
The binary value is 100101110.

Convert binary to decimal 
Start from the last digit and column it as 0th, 1, 2...
The number (0 or 1) of the nth digit multiplied by the Npower of 2
The result is the answer.
Example: 01101011. Convert to decimal:
0th bits: 1 multiplied by 2 to the power of 0 = 1
1 to the power of 2 = 2
0 multiplied by the 2's power = 0
1 multiplied by the power of 2 = 8
0 multiplied by the power of 2 = 0
1 multiplied by the power of 2 = 32
1 multiplied by the power of 2 = 64
0 multiplied by the power of 2 = 0
Then: 1 + 2 + 0
+ 8 + 0 + 32 + 64 + 0 = 107.
Binary 01101011 = decimal 107.