VSWR - Return Loss - Γ  Conversions

These are the standard set of equations for converting between VSWR, return loss, and reflection coefficient (Γ). A table of convenient values are presented at the bottom.

Here is a JavaScript calculator for VSWR / Return Loss / Reflection Coefficient / Mismatch Error / Improvement

Complex Impedances:

Return Loss	Voltage Standing Wave Ratio	Reflection Coefficient

Note: VSWR values were used to calculate the other two related values (rounded to 3 significant places)

RL (dB)	VSWR	G		RL (dB)	VSWR	G		RL (dB)	VSWR	G		RL (dB)	VSWR	G
46.1	1.01	0.00498		25.7	1.11	0.0521		18.0	1.29	0.126		8.0	2.32	0.398
40.1	1.02	0.00990		24.9	1.12	0.0566		17.0	1.33	0.141		7.0	2.61	0.447
36.6	1.03	0.0148		24.3	1.13	0.0610		16.0	1.38	0.158		6.0	3.01	0.501
34.1	1.04	0.0196		23.7	1.14	0.0654		15.0	1.43	0.178		5.0	3.57	0.562
32.3	1.05	0.0244		23.1	1.15	0.0698		14.0	1.50	0.200		4.0	4.42	0.631
30.7	1.06	0.0291		22.6	1.16	0.0783		13.0	1.58	0.224		3.0	5.85	0.708
29.4	1.07	0.0338		21.7	1.18	0.0826		12.0	1.67	0.251		2.0	8.72	0.794
28.3	1.08	0.0385		20.8	1.20	0.0909		11.0	1.78	0.282		1.0	17.4	0.891
27.3	1.09	0.0431		20.0	1.22	0.100		10.0	1.92	0.316		0.5	34.8	0.944
26.4	1.10	0.0476		19.0	1.25	0.112		9.0	2.10	0.355		0.0	Infinity	1.00