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VSWR Calculator
This calculator converts between VSWR and Return Loss, Reflection Coefficient, Mismatch Loss, and Reflected Power.
More info
VSWR
Return Loss (dB)
Mismatch Loss (dB)
Power Reflected (%)
Voltage Reflection Coefficient
=
VSWR
Return Loss (dB)
Mismatch Loss (dB)
Power Reflected (%)
Voltage Reflection Coefficient
The formulas for converting between VSWR and Return Loss (dB): $$RL = -20\log_{10}\frac{VSWR - 1}{VSWR + 1}$$ $$VSWR = \frac{1 + 10^{-\frac{RL}{20}}}{1 - 10^{-\frac{RL}{20}}}$$
The formulas for converting between VSWR and Voltage Reflection Coefficient, \(\Gamma\): $$|\Gamma| = \frac{VSWR - 1}{VSWR + 1}$$ $$VSWR = \frac{1 + |\Gamma|}{1 - |\Gamma|}$$
The formulas for converting between VSWR and Power Reflected (%): $$PR = 100\cdot(\frac{VSWR - 1}{VSWR + 1})^2$$ $$VSWR = \frac{1 + \sqrt{\frac{PR}{100}}}{1 - \sqrt{\frac{PR}{100}}}$$
The formulas for converting between VSWR and Mismatch Loss (dB): $$ML = -10\log_{10}(1 - (\frac{VSWR - 1}{VSWR + 1})^2)$$ $$VSWR = \frac{1 + \sqrt{1 - 10^{-\frac{ML}{10}}}}{1 - \sqrt{1 - 10^{-\frac{ML}{10}}}}$$
The formulas for converting between Return Loss (dB) and Voltage Reflection Coefficient, \(\Gamma\): $$|\Gamma| = 10^{-\frac{RL}{20}}$$ $$RL = -20\log_{10}|\Gamma|$$
The formulas for converting between Return Loss (dB) and Power Reflected (%): $$PR = 100\cdot10^{-\frac{RL}{10}}$$ $$RL = -10\log_{10}\frac{PR}{100}$$
The formulas for converting between Return Loss (dB) and Mismatch Loss (dB): $$ML = -10\log_{10}(1 - 10^{-\frac{RL}{10}})$$ $$RL = -10\log_{10}(1 - 10^{-\frac{ML}{10}})$$
The formulas for converting between Voltage Reflection Coefficient, \(\Gamma\), and Power Reflected (%): $$PR = 100|\Gamma|^2$$ $$|\Gamma| = \sqrt{\frac{PR}{100}}$$
The formulas for converting between Voltage Reflection Coefficient, \(\Gamma\), and Mismatch Loss (dB): $$ML = -10\log_{10}(1 - |\Gamma|^2)$$ $$|\Gamma| = \sqrt{1 - 10^{-\frac{ML}{10}}}$$
The formulas for converting between Power Reflected (%) and Mismatch Loss (dB): $$ML = -10\log_{10}(1 - \frac{PR}{100})$$ $$PR = 100\cdot(1 - 10^{-\frac{ML}{10}})$$
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