HEX	BINARY	DIGIT	DIGIT	DIGIT	DIGIT
NUMBER	NUMBER	X000	0X00	00X0	000X
0	0000	0	0	0	0
1	0001	4,096	256	16	1
2	0010	8,192	512	32	2
3	0011	12,288	768	48	3
4	0100	16,384	1024	64	4
5	0101	20,480	1280	80	5
6	0110	24,576	1536	96	6
7	0111	28,672	1792	112	7
8	1000	32,768	2048	128	8
9	1001	36,864	2304	144	9
A	1010	40,960	2560	160	10
B	1011	45,056	2816	176	11
C	1100	49,152	3072	192	12
D	1101	53,248	3328	208	13
E	1110	57,344	3584	224	14
F	1111	61,440	3840	240	15

 

Hex to decimal examples

1234h = 4,096 + 512 + 48 + 4 = 4,660 decimal

FC96h = 61,440 + 3,072 + 144 + 6 = 64,662 decimal

 

Decimal to Hex examples

To convert from decimal to hex find the largest decimal number less than or equal to the number you are converting and find the corresponding hex digit.  Subtract the value of that hex digit and repeat for the next digit.  

13,117 decimal to hex:

3000h = 12,288 which is less than or equal to 13,117

13,117 - 12,288 = 829

0300h = 768 which is less than or equal to 829 

829 - 768 = 61

0030h = 48 which is less than or equal to 61

61 - 48 = 13 which can be read from the table as 000Dh

Therefore 13,117 decimal = 333Dh