What this calculator does
This tool converts a magnetic flux density value (also called magnetic induction, symbol B) from one unit into all common units at once. It covers the Gauss CGS system (milligauss, gauss, kilogauss), the Tesla SI system (microtesla, millitesla, tesla), the Weber-per-area family (Wb/in2, Wb/cm2, Wb/m2) and the Maxwell-per-area family (Mx/in2, Mx/cm2, Mx/m2). It is universal physics and applies everywhere.
How to use it
Enter the numeric value, pick the unit it is currently expressed in, and the table shows the equivalent in every other unit. Negative values are allowed because B has direction; the sign passes through linearly.
The formula explained
Every unit is defined by a factor relative to the SI unit Tesla, where \(1\ \text{Tesla} = 1\ \text{Wb/m}^2\). The calculator first normalizes the input to Tesla using $$B_{\text{SI}} = \text{value} \times \text{factor}_{\text{in}}$$ then converts to each target unit with $$B_U = \frac{B_{\text{SI}}}{\text{factor}_U}.$$ Key relations: \(1\ \text{T} = 10^4\ \text{G} = 10^7\ \text{mG} = 10^6\ \mu\text{T} = 10^3\ \text{mT}\), \(1\ \text{G} = 1\ \text{Mx/cm}^2\), \(1\ \text{Mx} = 10^{-8}\ \text{Wb}\), and \(1\ \text{in}^2 = 6.4516\ \text{cm}^2 = 0.00064516\ \text{m}^2\).
Worked example
For 1 Tesla: milligauss = \(10^7\), gauss = \(10^4\), kilogauss = \(10\), microtesla = \(10^6\), millitesla = \(1000\), weber per square centimeter = \(10^{-4}\ \text{Wb/cm}^2\), maxwell per square meter = \(10^8\ \text{Mx/m}^2\). These match the table exactly.
FAQ
Is Tesla the same as Wb/m2? Yes, exactly. \(1\ \text{T} = 1\ \text{Wb/m}^2\) by definition.
What is the link between Gauss and Maxwell? 1 Gauss equals exactly 1 Maxwell per square centimeter (Mx/cm2).
How many Gauss in a Tesla? Exactly 10,000 Gauss equal 1 Tesla.
