Conversion method
Magnetomotive force is current times number of turns. Turn count is dimensionless; ampere-turn is commonly written A·turn.
Gb = x × 1.2566370614359172
10 A·turn = 12.566371 Gb.
| A·turn | Gb |
|---|---|
| 1 | 1.256637 |
| 5 | 6.283185 |
| 10 | 12.566371 |
| 25 | 31.415927 |
| 50 | 62.831853 |
| 100 | 125.663706 |
Unit definitions and sources
Magnetomotive force is current times number of turns. Turn count is dimensionless; ampere-turn is commonly written A·turn.
| Unit and system | Use | Definition | Relationship |
|---|---|---|---|
| Ampere-turn (A·turn); si | Common units | Ampere-turn: base (at) = value × 1. Common use: Magnetomotive Force. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Gilbert (Gb); si | Common units | Gilbert: base (at) = value × 0.7957747154594768. Common use: Magnetomotive Force. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Kiloampere-turn (kA·turn); si | Specialist units | Kiloampere-turn: base (at) = value × 1000. Common use: Magnetomotive Force. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
| Milliampere-turn (mA·turn); si | Specialist units | Milliampere-turn: base (at) = value × 0.001. Common use: Magnetomotive Force. Source checked 2026-09-20 (implementation review). | Exact definition; numerical display may be rounded |
Sources: NIST: SP 811 Appendix B.8: conversion factors; BIPM: SI prefixes
Precision of magnetomotive force conversions
All 4 magnetomotive force units convert through Ampere-turn (A·turn). 4 have an exact defined relationship to the base unit and 0 are conventional or measured values. Results and the tables on this page come from the same engine, so a table value can be checked against the converter directly.
Standard display shows up to six decimal places, switching to scientific notation for very large or small values. Calculation uses JavaScript binary floating point independently of display rounding, so extra digits are not a claim about measurement accuracy. Each unit lists its own source; a citation records where the definition comes from, not an independent review. See Conversion methodology for the review and correction process.