Convert Amperes to Megaamperes
Convert Amperes (A) to Megaamperes (MA) instantly and accurately.
Conversion Formula
MA = A × 1.000000000e-6
About Amperes
The ampere (A) is the SI base unit of electric current, defined since 2019 by fixing the elementary charge e = 1.602 176 634 × 10⁻¹⁹ C. One ampere corresponds to approximately 6.241 × 10¹⁸ electrons passing a cross-section per second. Common benchmarks: a 60 W incandescent lamp draws 0.5 A at 120 V; household circuit breakers protect at 10-30 A; a car starter motor draws 100-200 A on cranking.
About Megaamperes
The megaampere (MA) equals 10⁶ A, encountered in pulsed-power research, electromagnetic launcher experiments, and Z-pinch plasma physics. The Sandia Z Machine delivers peak currents of 20-26 MA to drive inertial confinement fusion implosions; large-scale rail-gun prototypes operate at 1-5 MA; nuclear-weapon electromagnetic pulse can induce megaampere transients in extended conductors. 1 MA = 10⁶ A = 10³ kA.
Quick Reference Table
| Amperes (A) | Megaamperes (MA) |
|---|---|
| 1 A | 1 × 10-6 MA |
| 2 A | 2 × 10-6 MA |
| 5 A | 5 × 10-6 MA |
| 10 A | 1 × 10-5 MA |
| 25 A | 2.5 × 10-5 MA |
| 50 A | 5 × 10-5 MA |
| 100 A | 1 × 10-4 MA |