Milliampere turns to Ampere turns Converter (mAt to At)
mAt × 0.001 = At
Calculation: 1 mAt × 0.001 = 0.001 At
Common Milliampere turn to Ampere turn Calculations
Quick-lookup reference table showing calculated equivalents for standard increments between Milliampere turn (mAt) and Ampere turn (At).
| Conversion & Equivalent Value | Scientific Notation |
|---|---|
| 0.001 mAt 1 × 10⁻⁶ At | 1 × 10⁻⁶ |
| 0.01 mAt 1 × 10⁻⁵ At | 1 × 10⁻⁵ |
| 0.1 mAt 0.0001 At | 1 × 10⁻⁴ |
| 0.5 mAt 0.0005 At | 5 × 10⁻⁴ |
| 1 mAt 0.001 At | 1 × 10⁻³ |
| 2 mAt 0.002 At | 2 × 10⁻³ |
| 5 mAt 0.005 At | 5 × 10⁻³ |
| 10 mAt 0.01 At | 1 × 10⁻² |
| 20 mAt 0.02 At | 2 × 10⁻² |
| 25 mAt 0.025 At | 2.5 × 10⁻² |
| 50 mAt 0.05 At | 5 × 10⁻² |
| 100 mAt 0.1 At | 1 × 10⁻¹ |
| 250 mAt 0.25 At | 2.5 × 10⁻¹ |
| 500 mAt 0.5 At | 5 × 10⁻¹ |
| 1000 mAt 1 At | 1 × 10⁰ |
| Reciprocal & Equivalent Value | Scientific Notation |
|---|---|
| 1 At 1000 mAt | 1 × 10³ |
| 5 At 5000 mAt | 5 × 10³ |
| 10 At 10000 mAt | 1 × 10⁴ |
| 50 At 50000 mAt | 5 × 10⁴ |
| 100 At 100000 mAt | 1 × 10⁵ |
Real-World Context & Everyday Benchmarks
Tap to load into converterTo help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for Milliampere turn (mAt) and Ampere turn (At):
Milliampere turn References:
- Sensitive mirror galvanometer electrical measuring coil bias 50 mAt
Ampere turn References:
- Household electric chime doorbell solenoid coil excitation 100 At
- Automotive starter motor heavy solenoid contactor coil 1500 At
- Audio speaker voice coil driving dynamic paper cone 25 At
How to Convert Milliampere turn to Ampere turn
Converting Milliampere turn (mAt) to Ampere turn (At) is a core calculation in Magnetomotive Force, which measures the magnetic potential difference that drives magnetic flux through a magnetic circuit. Both units reside within the International System of Units (SI) and share an identical physical dimension vector ([I]), separated strictly by a decimal order-of-magnitude factor (10^-3). Because this shift involves integer powers of 10, the conversion is mathematically exact and free from decimal rounding or irrational fractional loss. Exactly 1 Milliampere turn equals 0.001 Ampere turn.
Mathematical Conversion Derivation via Coherent SI Base Unit
Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (ampere (A) / ampere-turn (At)) without arbitrary rounding:
1 mAt = 0.001 ampere (A) / ampere-turn (At)1 At = 1 ampere (A) / ampere-turn (At)V(At) = V(mAt) × ( 0.001 / 1 ) = V(mAt) × 0.001Value in Ampere turn = Value in Milliampere turn × 0.001Direct computational formula applied for standard conversion.To convert 24 Milliampere turn (mAt) to Ampere turn (At): multiply 24 by 0.001 to get 0.024 At. At an industrial engineering scale, 10000 mAt converts to 10 At.
Inverse check: 1 At = 1000 mAt.Understanding Milliampere turn and Ampere turn
Milliampere turn
mAtA Milliampere turn (mAt) is a decimal submultiple of the SI-derived unit for magnetomotive force.
Applications & Practical Context
In practical magnetomotive force terms, a sensitive mirror galvanometer electrical measuring coil bias equals 50 mAt.
A physical magnitude of 1 mAt corresponds to 0.001 At in standard SI measurement.
1 mAt = 0.001 AtAmpere turn
AtAn Ampere turn (At) is the official base standard unit for magnetomotive force.
Applications & Practical Context
In practical magnetomotive force terms, a household electric chime doorbell solenoid coil excitation equals 100 At, a automotive starter motor heavy solenoid contactor coil equals 1500 At, a audio speaker voice coil driving dynamic paper cone equals 25 At.
A magnetomotive force of 1 At is generated by a single wire turn carrying an electric current of 1 ampere.
1 At = 1 At (Base Standard)Domain Metrology & Engineering Applications
Ampère's Circuital Law (F_m = ∮ H · dl = N · I)
Rigorously quantified in laboratory and field settings using Rogowski potential integrators, magnetic potentiometer coils (Chattock gauges), and fluxgate magnetometers.
Applied across solenoid actuator engineering, electric motor stator magnetics, transformer core design, and electromagnetic brake systems under international metrology standard ISO 80000-6:2022.
Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-6:2022 and the BIPM SI Brochure (9th Edition). Governed by Ampère's Circuital Law (F_m = ∮ H · dl = N · I) under ISO 80000 dimensional vector [I].
Magnetomotive Force to Magnetic Field Strength Bridge (A/m • At/m • Oe • kA/m • At/in • At/ft)
Calculate magnetic field strength H = ℱ / l along closed magnetic paths, bridging magnetomotive force [I] and magnetic field strength [L⁻¹ I] via mean magnetic path length (l).
H = ℱ / l
[At] ÷ [m] → [A/m]
-
1. Normalize Input to SI Base Unit (At):
ℱ = 1 mAt × 0.001 = 0.001 At -
2. Apply Engineering Parameter (l):
Selected condition: EI-150 Laminated Transformer (300 mm) at l = 0.3 m -
3. Execute Governing Physical Law in SI Units:
H = ℱ / l = (0.001 At) ÷ (0.3 m) = 0.00333333 A/m -
4. Convert to Standard Engineering Units:
• A/m: 0.00333333 × 1 = 0.003333 A/m (Amperes per Meter) • At/m: 0.00333333 × 1 = 0.003333 At/m (Ampere-Turns per Meter) • Oe: 0.00333333 × 0.01257 = 4.1888 × 10⁻⁵ Oe (Oersteds) • kA/m: 0.00333333 × 0.001 = 3.3333 × 10⁻⁶ kA/m (Kiloamperes per Meter) • At/in: 0.00333333 × 0.0254 = 8.4667 × 10⁻⁵ At/in (Ampere-Turns per Inch) • At/ft: 0.00333333 × 0.3048 = 0.001016 At/ft (Ampere-Turns per Foot)
| Engineering Substance / Operating Standard | Parameter Value (m) | Reference State / Condition | Typical Industrial & Engineering Application |
|---|---|---|---|
| Small Toroidal Core (50 mm Path) | 0.05 |
0.05 m (50 mm) | Compact ferrite filter inductor path length |
| ETD Transformer Magnetic Path (114 mm) | 0.114 |
0.114 m (114 mm) | Standard ETD49 core magnetic path length |
| EI-150 Laminated Transformer (300 mm) | 0.3 |
0.30 m (300 mm) | Silicon steel power transformer magnetic circuit |
| Large AC Stator Perimeter (1.5 m) | 1.5 |
1.50 meters | Industrial induction motor stator magnetic path |
