[Elecraft] 75ohm Impedance question K3S and Antenna side.

[AE4PB at carolinaheli.com]

So I found a formula for feedline length and just need some eyes on it to make sure I applied it correctly. 
I want to measure twice and  cut once. Then I can use my antenna analyzer with a dummy load on the line to trim it. 

The columns are band, freq in Mhz, Multiplier to give multiples of the 1/2 wave length.
You have to view the email full screen width or the tables wrap making it hard to read. 
It looks like 111.7694545 feet is the calculated half wavelength for 80m (3.53Mhz), not sure what will happen on 30m as it's closest length appears to occur at 3 wavelengths where the feedline would be about 4.801946936 Feet too long. 
Not sure what the SWR related losses will be but it will probably be ok. 

BAND	Freq	          1	                          2	                        2.5	            3	                       3.5	                          4	                         4.5	           5	                  5.5	                        6	                        6.5	            7	                         7.5	        8
80	3.52	111.7694545	223.5389091	279.4236364	335.3083636	391.1930909	447.0778182	502.9625455	558.8472727	614.732	670.6167273	726.5014545	782.3861818	838.2709091	894.1556364
40	7.04	55.88472727	111.7694545	139.7118182	167.6541818	195.5965455	223.5389091	251.4812727	279.4236364	307.366	335.3083636	363.2507273	391.1930909	419.1354545	447.0778182
30	10.125	38.85713383	77.71426765	97.14283457	116.5714015	135.9999684	155.4285353	174.8571022	194.2856691	213.714236	233.142803	252.5713699	271.9999368	291.4285037	310.8570706
20	14.08	27.94236364	55.88472727	69.85590909	83.82709091	97.79827273	111.7694545	125.7406364	139.7118182	153.683	167.6541818	181.6253636	195.5965455	209.5677273	223.5389091
15	21.4	18.38450841	36.76901682	45.96127103	55.15352523	64.34577944	73.53803364	82.73028785	91.92254206	101.1147963	110.3070505	119.4993047	128.6915589	137.8838131	147.0760673
10	27	14.57142519	29.14285037	36.42856296	43.71427556	50.99998815	58.28570074	65.57141333	72.85712593	80.14283852	87.42855111	94.7142637	101.9999763	109.2856889	116.5714015

Formula used: L = (S * W * Vf)/f
													
S 	983.5712														
W	0.5														
VF	0.8										983.5712				
L = (S * W * Vf)/f															
S speed of light in meters or feet															
W number of wavelengths desired															
VF velocity factor															

Jerry Moore
Cell: 803-431-1870