Gauss to Tesla Converter
Instantly convert magnetic flux density between Gauss (G) and Tesla (T). Perfect for physics, engineering, and scientific calculations.
Convert Magnetic Flux Density
Enter your magnetic field value and select your units. The converter instantly calculates the exact equivalent across the SI and CGS measurement systems.
Magnetic Field Converter
Instantly convert between Gauss, Tesla, and sub-units.
Understanding Magnetic Units
Key concepts behind magnetic flux density
The SI Unit (Tesla)
Tesla (T) is the standard International System unit for magnetic flux density. It represents a very strong magnetic field, commonly used in engineering and medical imaging (MRI).
The CGS Unit (Gauss)
Gauss (G) is the older centimetre-gram-second unit. Because a Tesla is so large, Gauss is preferred for measuring weaker magnetic fields like the Earth’s field or small magnets.
The 10,000 Factor
The conversion is exact: 1 Tesla equals exactly 10,000 Gauss. This straightforward decimal relationship makes mental math and scientific calculations relatively easy.
Sub-Units in Science
For very weak fields, scientists use Microteslas (µT) or Nanoteslas (nT). 1 Microtesla is equal to 10 milligauss or 0.01 Gauss.
Real-World Magnetic Strengths
Generalised averages to help you visualise the scale of magnetic fields across different scientific and everyday applications.
| Magnetic Source | Category | Strength in Gauss | Strength in Tesla |
|---|---|---|---|
| Earth’s Magnetic Field | Natural | 0.25 – 0.65 G | 25 – 65 µT |
| Fridge Magnet | Household | ~100 G | 0.01 T |
| Neodymium Magnet | Industrial | ~10,000 – 14,000 G | 1 – 1.4 T |
| Clinical MRI Machine | Medical | 15,000 – 30,000 G | 1.5 – 3 T |
| Strongest Lab Magnet | Research | ~450,000 G | 45 T |
Magnetic Converter FAQ
Answers to the most frequently asked questions about converting magnetic flux density between Gauss and Tesla.
1 Tesla is equal to 10,000 Gauss. To convert Gauss to Tesla, divide the Gauss value by 10,000. To convert Tesla to Gauss, multiply the Tesla value by 10,000. You can also use sub-units like millitesla (mT) where 1 mT equals 10 Gauss.
Both are units of magnetic flux density (or magnetic field strength). Tesla (T) is the SI (International System) unit, while Gauss (G) is the CGS (centimetre-gram-second) unit. Tesla is used for stronger magnetic fields, while Gauss is used for weaker ones.
The Earth’s magnetic field at the surface ranges from approximately 0.25 to 0.65 Gauss, which is equivalent to 25 to 65 microteslas (µT).
A standard clinical MRI machine typically operates at 1.5 to 3 Tesla, which is equivalent to 15,000 to 30,000 Gauss.
In modern scientific literature, the SI system is preferred. Because the Earth’s magnetic field is roughly 0.5 Gauss, it is often more convenient to express this as 50 Microteslas (µT) to maintain standard SI prefixes without mixing measurement systems.