Complex Dielectric Constant of Water

Site Home

Electronics Home

Calculator Index

About Us

Privacy Policy

Calculates the complex dielectric constant of water for a given frequency and temperature using the model derived by Thomas Meissner and Frank Wentz in "The Complex Dielectric Constant of Pure and Sea Water from Microwave Satellite Observations". Their paper can be found here

For pure water the model is valid for frequencies up to 500 GHz from a temperature of -20 °C (note that this is super cooled water NOT ice) to +40 °C.




Enter values and press Enter or click on the Calculate button


Temperature °C       Static εr
Frequency GHz       Real εr
         Imaginary εr
   Loss Tangent

Note that neither Thomas Meissner or Frank Wentz are in any way related to, or affiliated with, this site.

Related links


Chemical Composition of the Oceans



Whilst I try to keep the information on this site accurate, I'm only human and I do occasionally make mistakes. I therefore advise you to check any information before using it for anything important. If you do find any errors, please let me know so that I can correct them.

Click here to report an error on this page.

This page was last changed on: 02 August 2021.

Thanks for visiting my site.