Magnetomotive Force Converter
Convert magnetomotive force units easily between ampere-turn, gilbert, abampere-turn, and kiloampere-turn. Our free magnetomotive force converter helps you work with MMF calculations for electrical engineering, motor design, and electromagnetic applications.
What is Magnetomotive Force?
Magnetomotive force (MMF) is the force that drives magnetic flux through a magnetic circuit. Think of it like electrical voltage in an electric circuit. The magnetomotive force creates magnetic fields in coils, transformers, and motors.
The ampere-turn is the most common unit for measuring magnetomotive force. One ampere-turn means one ampere of current flowing through one turn of wire. Engineers use gilbert, abampere-turn, and kiloampere-turn units for different applications.
Our magnetomotive force converter makes it simple to switch between these units. Whether you work with small electronic devices or large industrial motors, accurate MMF conversion is essential for proper design and operation.
Common Uses of Magnetomotive Force
Electric Motors
Motor designers calculate magnetomotive force to determine the right number of wire turns and current needed. The ampere-turn value affects motor speed, torque, and efficiency. Converting between gilbert and ampere-turn helps compare different motor specifications.
Transformers
Transformer cores need specific magnetomotive force levels to work properly. Engineers use kiloampere-turn for large power transformers and milliampere-turn for small signal transformers. Our converter helps calculate the right MMF for any transformer size.
Electromagnets
Electromagnets in relays, solenoids, and lifting magnets depend on magnetomotive force for their strength. The abampere-turn unit is sometimes used in older electromagnetic equipment specifications that need conversion to modern ampere-turn values.
MRI Machines
Medical MRI scanners use very high magnetomotive force values, often measured in kiloampere-turn or even higher units. Precise MMF control ensures clear medical images and patient safety during magnetic resonance imaging procedures.
Understanding MMF Units
Ampere-turn (AT)
The ampere-turn is the standard SI unit for magnetomotive force. It equals the current in amperes multiplied by the number of wire turns. Most modern electrical equipment specifications use ampere-turn values for consistency and easy calculation.
Gilbert (Gi)
The gilbert is part of the older CGS electromagnetic unit system. One gilbert equals about 0.7958 ampere-turn. Some older textbooks and international specifications still use gilbert units, making conversion to ampere-turn necessary for modern applications.
Abampere-turn (abAT)
The abampere-turn comes from the electromagnetic CGS system. One abampere-turn equals 10 ampere-turn. This unit appears in some scientific literature and older electromagnetic equipment manuals that require conversion for current use.
Kiloampere-turn (kAT)
The kiloampere-turn represents 1000 ampere-turn. Large industrial motors, generators, and power transformers often use kiloampere-turn values because their MMF requirements are very high. This unit makes large numbers easier to work with and understand.
Magnetomotive Force Conversion Tips
Quick Conversion Rules
- • Multiply ampere-turn by 1.257 to get gilbert
- • Divide gilbert by 1.257 to get ampere-turn
- • Multiply ampere-turn by 0.1 to get abampere-turn
- • Divide ampere-turn by 1000 to get kiloampere-turn
- • Always check your decimal places for accuracy
Common Mistakes to Avoid
- • Don't confuse MMF with magnetic field strength
- • Remember gilbert uses a different conversion factor
- • Check if specifications use peak or RMS values
- • Verify the number of turns in your calculations
- • Double-check units in international standards
Why Choose Our Magnetomotive Force Converter?
Fast & Accurate
Get instant magnetomotive force conversions with precise calculations. Our converter uses exact conversion factors for reliable results every time.
Mobile Friendly
Use our magnetomotive force converter on any device. The responsive design works perfectly on phones, tablets, and computers for convenience anywhere.
Always Free
No registration, no downloads, no hidden costs. Our magnetomotive force converter is completely free to use for students, engineers, and professionals.
Magnetomotive Force Converter - Convert AT, Gilbert, Abampere-turn & More
Input
1 AT
Result
1.25663705 Gi
How It Works
Enter Value
Type your magnetomotive force value
Select Units
Choose from and to units for conversion
What is Magnetomotive Force Calculator?
What
A free tool that converts magnetomotive force units between ampere-turn, gilbert, abampere-turn, and kiloampere-turn instantly.
Why
Essential for electrical engineers, motor designers, and physics students working with electromagnetic calculations and equipment specifications.
Applications
Motor design, transformer calculations, electromagnet specifications, MRI systems, and electrical engineering projects.
Magnetomotive Force Conversion Table
| Ampere-turn (AT) | Gilbert (Gi) | Abampere-turn (abAT) | Kiloampere-turn (kAT) | Application |
|---|---|---|---|---|
| 1 | 1.257 | 0.1 | 0.001 | Small electromagnet |
| 10 | 12.57 | 1 | 0.01 | Relay coil |
| 100 | 125.7 | 10 | 0.1 | Small motor |
| 1,000 | 1,257 | 100 | 1 | Medium motor |
| 10,000 | 12,570 | 1,000 | 10 | Large transformer |
| 100,000 | 125,700 | 10,000 | 100 | Industrial generator |
| 1,000,000 | 1,257,000 | 100,000 | 1,000 | MRI scanner |
*All conversions use exact conversion factors: 1 AT = 1.257 Gi = 0.1 abAT
Common Examples
Small Motor
100 turns × 2 A
= 200 AT
Typical household motor
Relay Coil
500 turns × 0.1 A
= 50 AT
Control relay electromagnet
Transformer
1000 turns × 5 A
= 5 kAT
Power transformer primary
Solenoid Valve
200 turns × 0.5 A
= 100 AT
Industrial valve actuator
MRI Scanner
10000 turns × 100 A
= 1000 kAT
Medical imaging magnet
Generator Field
2000 turns × 10 A
= 20 kAT
Large generator excitation
Frequently Asked Questions
What is magnetomotive force?
Magnetomotive force is the force that creates magnetic flux in a magnetic circuit. It equals current times the number of wire turns. Our MMF calculator helps convert between different units easily.
How do I convert ampere-turn to gilbert?
To convert ampere-turn to gilbert, multiply by 1.257. For example: 100 AT × 1.257 = 125.7 Gi. Our magnetomotive force converter does this calculation automatically.
What is the difference between AT and abAT?
Ampere-turn (AT) is the SI unit. Abampere-turn (abAT) is from the CGS system. 1 abAT = 10 AT. The abampere-turn converter helps switch between these units for older equipment specs.
When do I use kiloampere-turn?
Use kiloampere-turn (kAT) for large motors, generators, and transformers with high MMF values. 1 kAT = 1000 AT. This gilbert conversion tool handles all these units automatically.
Is this MMF calculator accurate for engineering work?
Yes, our magnetomotive force converter uses exact conversion factors from international standards. It's accurate enough for professional engineering, motor design, and electromagnetic calculations.
How is MMF calculated?
MMF is calculated by multiplying current (in amperes) by the number of turns in the coil. Formula: MMF = I × N, where I is current and N is number of turns.
Is this converter free to use?
Yes, our magnetomotive force converter is completely free. No registration required. Use it for all your electrical engineering and physics calculations.