So much to lose

Most competitive cyclists have a BMI between 20 and 23, as I showed here. If my height is between 5' and 6' 8'', this is where my weight should be:

height (inches)	Min weight	Max weight
60	102	118
61	106	122
62	109	126
63	113	130
64	117	134
65	120	138
66	124	143
67	128	147
68	132	151
69	135	156
70	139	160
71	143	165
72	147	170
73	152	174
74	156	179
75	160	184
76	164	189
77	169	194
78	173	199
79	178	204
80	182	209

Now suppose that I need to lose x pounds in three months (180 days). I should meet a caloric deficit of 3,500x/180 per day, or approximately 20x.

Note: the ideal-weight figures might be slightly different for women.