Microwave Oven
2.45 GHz
Standard microwave oven frequency (2.45 GHz).
How well is this supported?
MeasuredPhysical measurement
Measured directly, or defined by a published standard.
This value is measured, or set by a published standard.
What the four labels meanChecked against sources September 27, 2026
About this number
Standard microwave oven frequency (2.45 GHz). The waves make water and other molecules in food rotate, which produces heat. This is called dielectric heating. The frequency is not tuned to a resonance of water. Same ISM band as WiFi.
Facts
- Frequency
- 2.45 GHz
- Wavelength (electromagnetic wave)
- 12.2 cm
- Kind of statement
- Physical measurement
- Filed under
- Radio & light
Sources
- How microwave ovens heat food
An explanation of dielectric heating, and of why the oven is not tuned to a resonance of water.
C. Baird, West Texas A&M University, “Science Questions with Surprising Answers”.