Magnetomotive Force Converter
Convert between ampere-turns, kiloampere-turns, milliampere-turns, gilberts and abampere-turns.
Convert magnetomotive force
Result
Magnetomotive Force units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the ampere-turn (At).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Ampere-turn | At | SI | Base unit |
| Kiloampere-turn | kAt | SI | = 1000 At |
| Milliampere-turn | mAt | SI | = 0.001 At |
| Gilbert | Gi | CGS | ≈ 0.7957747155 At |
| Abampere-turn | abAt | CGS | = 10 At |
Ampere-turn quick reference
| Ampere-turn | Gilbert |
|---|---|
| 1 At | ≈ 1.256637061 Gi |
| 10 At | ≈ 12.56637061 Gi |
| 100 At | ≈ 125.6637061 Gi |
| 1000 At | ≈ 1256.637061 Gi |
Among the 5 magnetomotive force units on this page, the smallest is the milliampere-turn (mAt) and the largest is the kiloampere-turn (kAt).
More magnetomotive force conversions
About magnetomotive force units
Magnetomotive force (mmf) is what drives magnetic flux through a magnetic circuit, much as voltage drives current through an electric circuit. Its SI unit is the ampere-turn (At): the current in a coil times its number of turns. A coil of 200 turns carrying 0.5 A produces 100 At.
The CGS unit is the gilbert. Because the CGS system includes a factor of 4π, 1 Gi is 10/(4π) At, about 0.7958 At, and 1 At is about 1.2566 Gi. One abampere-turn is exactly 10 At.
Frequently asked questions
- How many ampere-turns are in a gilbert?
- About 0.7957747. One gilbert is exactly 10/(4π) ampere-turns.
- Is an ampere-turn the same as an ampere?
- Dimensionally yes, since the number of turns has no unit. Ampere-turn is used to make clear that the value is current multiplied by the number of turns in a coil.
- How many gilberts are in one ampere-turn?
- One ampere-turn ≈ 1.256637061 Gi (gilberts).