This page lists examples of magnetic induction B in teslas and gauss produced by various sources, grouped by orders of magnitude.
The magnetic flux density does not measure how strong a magnetic field is, but only how strong the magnetic flux is in a given point or at a given distance (usually right above the magnet's surface). For the intrinsic order of magnitude of magnetic fields, see: Orders of magnitude (magnetic moment). Note:
These examples attempt to make the measuring point clear, usually the surface of the item mentioned.
| 10−18 T | attotesla | |||
| Sensitivity of Gravity Probe B gyroscope's "SQUID" magnetometer (most sensitive when averaged over days)[3] | ||||
| 10−17 T | ||||
| 10−16 T | ||||
| 10−15 T | femtotesla | |||
| 10−14 T | ||||
| 10−13 T | Human brain | |||
| 10−12 T | picotesla | |||
| 10−11 T | "Potholes" in the magnetic field found in the heliosheath around the Solar System reported by Voyager 1 (NASA, 2006)[4] | |||
| 10−10 T | Heliosphere | |||
| 10−9 T | nanotesla | |||
| 10−8 T | ||||
| 10−7 T | Coffeemaker (30cm (10inches) away)[5] | |||
| to | to | Residential electric distribution lines (34.5 kV) (15m (49feet) away)[6] | ||
| 10−6 T | microtesla | Blender (30cm (10inches) away) | ||
| to | to | High power (500 kV) transmission lines (30m (100feet) away) | ||
| Microwave oven (30cm (10inches) away) | ||||
| 10−5 T | ||||
| Magnetic tape near tape head | )--> | |||
|---|---|---|---|---|
| Earth's magnetic field at 0° latitude (on the equator) | ||||
| Earth's magnetic field at 50° latitude | ||||
| 10−4 T | Magnetic flux density that will induce an electromotive force of 10-8 volts in each centimeter of a wire moving perpendicularly at 1 by definition (1 gauss = 1 )[7] | |||
| Suggested exposure limit for cardiac pacemakers by American Conference of Governmental Industrial Hygienists (ACGIH) | ||||
| 10−3 T | millitesla | Refrigerator magnets ([8] to [9]) | ||
| 10−2 T | centitesla | |||
| Penny-sized ferrite magnet | ||||
| 10−1 T | decitesla | Penny-sized neodymium magnet | ||
| Sunspot | ||||
| 100 T | tesla | Inside the core of a 60 Hz power transformer (to)[10] [11] or voice coil gap of a loudspeaker magnet (to)[12] | ||
| to | to | Medical magnetic resonance imaging systems (in practice)[13] [14] [15] | ||
| Experimental magnetic resonance imaging systems: NMR spectrometer at 400 MHz to 500 MHz | ||||
| 101 T | decatesla | |||
| Levitate a frog by distorting its atomic orbitals[16] | ||||
| 1 GHz NMR spectrometer[17] | ||||
| Strongest continuous magnet field produced by all-superconducting magnet[18] [19] | ||||
| Strongest continuous magnetic field produced by non-superconductive resistive magnet[20] | ||||
| Strongest non-tiny continuous magnetic field produced in a laboratory (Steady High Magnetic Field Facility (SHMFF) in Hefei, China, 2022),[21] beating previous 45 T record (National High Magnetic Field Laboratory's FSU, USA, 1999)[22] (both are hybrid magnets, combining a superconducting magnet with a resistive magnet) | ||||
| Strongest continuous magnetic field produced in a laboratory (National High Magnetic Field Laboratory's FSU, USA, 2019), though the magnet is tiny (only 390 grams)[23] | ||||
| 102 T | hectotesla | Strongest pulsed non-destructive ("multi-shot") magnetic field produced in a laboratory (Pulsed Field Facility at National High Magnetic Field Laboratory's Los Alamos National Laboratory, Los Alamos, NM, USA)[24] | ||
| 103 T | kilotesla | |||
| Record for indoor pulsed magnetic field, (University of Tokyo, 2018)[25] | ||||
| Record for human produced, pulsed magnetic field, (VNIIEF, 2001)[26] | ||||
| 104 T | ||||
| Felt by valence electrons in a xenon atom due to the spin–orbit effect[27] | ||||
| 105 T | Non-magnetar neutron stars[28] | |||
| 106 T | megatesla | |||
| 107 T | ||||
| 108 T | ||||
| 109 T | gigatesla | Schwinger limit (~4.41 GT) above which the electromagnetic field becomes nonlinear | ||
| 1010 T | Magnetar neutron stars[29] | |||
| 1011 T | ||||
| 1012 T | teratesla | 1 TT | 10 PG | |
| 1013 T | 10 TT | 100 PG | ||
| 16 TT | 160 PG | Swift J0243.6+6124 most magnetic pulsar[30] [31] | ||
| 1014 T | Magnetic fields inside heavy ion collisions at RHIC[32] [33] |