Convert Ampere-turns to Milliampere-turns
Convert Ampere-turns (A·t) to Milliampere-turns (mA·t) instantly and accurately.
Conversion Formula
mA·t = A·t × 1000
About Ampere-turns
The ampere-turn (A·t) is the SI practical unit of magnetomotive force, defined as F = N × I (turns × current). A 100-turn relay coil at 10 mA produces 1 A·t; power transformer cores typically operate at 100-1000 A·t. 1 A·t = 1 A (turn is dimensionless in SI).
About Milliampere-turns
The milliampere-turn (mA·t) equals 10⁻³ A·t. Practical unit for reed relays and small inductors - a typical reed relay operates at 20-100 mA·t; audio transformer cores for hearing aids are magnetised at a few mA·t. 1 mA·t = 10⁻³ A·t.
Quick Reference Table
| Ampere-turns (A·t) | Milliampere-turns (mA·t) |
|---|---|
| 1 A·t | 1000 mA·t |
| 2 A·t | 2000 mA·t |
| 5 A·t | 5000 mA·t |
| 10 A·t | 10000 mA·t |
| 25 A·t | 25000 mA·t |
| 50 A·t | 50000 mA·t |
| 100 A·t | 100000 mA·t |