Decimal to Hexadecimal chart                                
+----------------------------------------------------------------------------------------------+
|Dec = Hex | Dec = Hex | Dec = Hex | Dec = Hex |Dec = Hex | Dec = Hex | Dec = Hex | Dec = Hex  |
|----------|-----------|-----------|-----------|----------|-----------|-----------|------------|
| 0  =  0  |  1  =  1  |  2  =  2  | 3  =  3   | 4  =  4  |  5  =  5  |  6  =  6  | 7  =  7    |
| 8  =  8  |  9  =  9  | 10  =  A  | 11  = B   | 12 =  C  |  13 =  D  | 14  =  E  | 15  = F    |
| 16 = 10  |  17 = 11  | 18  = 12  | 19  = 13  | 20 = 14  |  21 = 15  | 22  = 16  | 23  = 17   |
| 24 = 18  |  25 = 19  | 26  = 1A  | 27  = 1B  | 28 = 1C  |  29 = 1D  | 30  = 1E  | 31  = 1F   |
| 32 = 20  |  33 = 21  | 34  = 22  | 35  = 23  | 36 = 24  |  37 = 25  | 38  = 26  | 39  = 27   |
| 40 = 28  |  41 = 29  | 42  = 2A  | 43  = 2B  | 44 = 2C  |  45 = 2D  | 46  = 2E  | 47  = 2F   |
| 48 = 30  |  49 = 31  | 50  = 32  | 51  = 33  | 52 = 34  |  53 = 35  | 54  = 36  | 55  = 37   |
| 56 = 38  |  57 = 39  | 58  = 3A  | 59  = 3B  | 60 = 3C  |  61 = 3D  | 62  = 3E  | 63  = 3F   |
| 64 = 40  |  65 = 41  | 66  = 42  | 67  = 43  | 68 = 44  |  69 = 45  | 70  = 46  | 71  = 47   |
| 72 = 48  |  73 = 49  | 74  = 4A  | 75  = 4B  | 76 = 4C  |  77 = 4D  | 78  = 4E  | 79  = 4F   |
| 80 = 50  |  81 = 51  | 82  = 52  | 83  = 53  | 84 = 54  |  85 = 55  | 86  = 56  | 87  = 57   |
| 88 = 58  |  89 = 59  | 90  = 5A  | 91  = 5B  | 92 = 5C  |  93 = 5D  | 94  = 5E  | 95  = 5F   |
| 96 = 60  |  97 = 61  | 98  = 62  | 99  = 63  |100 = 64  | 255 = FF  | 999 = 3E7 | 9999 = 270F|
+----------------------------------------------------------------------------------------------+

And for users in 640x480, or wanting to work in notepad

   +----------------------------------------------+
   |Dec = Hex | Dec = Hex | Dec = Hex | Dec = Hex |
   |----------|-----------|-----------|-----------|
   | 0  =  0  |  1  =  1  |  2  =  2  | 3  =  3   |
   | 4  =  4  |  5  =  5  |  6  =  6  | 7  =  7   |
   | 8  =  8  |  9  =  9  | 10  =  A  | 11  = B   |
   | 12 =  C  |  13 =  D  | 14  =  E  | 15  = F   |
   | 16 = 10  |  17 = 11  | 18  = 12  | 19  = 13  |
   | 20 = 14  |  21 = 15  | 22  = 16  | 23  = 17  |
   | 24 = 18  |  25 = 19  | 26  = 1A  | 27  = 1B  |
   | 28 = 1C  |  29 = 1D  | 30  = 1E  | 31  = 1F  |
   | 32 = 20  |  33 = 21  | 34  = 22  | 35  = 23  |
   | 36 = 24  |  37 = 25  | 38  = 26  | 39  = 27  |
   | 40 = 28  |  41 = 29  | 42  = 2A  | 43  = 2B  |
   | 44 = 2C  |  45 = 2D  | 46  = 2E  | 47  = 2F  |
   | 48 = 30  |  49 = 31  | 50  = 32  | 51  = 33  |
   | 52 = 34  |  53 = 35  | 54  = 36  | 55  = 37  |
   | 56 = 38  |  57 = 39  | 58  = 3A  | 59  = 3B  |
   | 60 = 3C  |  61 = 3D  | 62  = 3E  | 63  = 3F  |
   | 64 = 40  |  65 = 41  | 66  = 42  | 67  = 43  |
   | 68 = 44  |  69 = 45  | 70  = 46  | 71  = 47  |
   | 72 = 48  |  73 = 49  | 74  = 4A  | 75  = 4B  |
   | 76 = 4C  |  77 = 4D  | 78  = 4E  | 79  = 4F  |
   | 80 = 50  |  81 = 51  | 82  = 52  | 83  = 53  |
   | 84 = 54  |  85 = 55  | 86  = 56  | 87  = 57  |
   | 88 = 58  |  89 = 59  | 90  = 5A  | 91  = 5B  |
   | 92 = 5C  |  93 = 5D  | 94  = 5E  | 95  = 5F  |
   | 96 = 60  |  97 = 61  | 98  = 62  | 99  = 63  |
   |100 = 64  | 255 = FF  | 999 = 3E7 |9999 = 270F|
   +----------------------------------------------+