Convert Amperes to Statamperes
Convert Amperes (A) to Statamperes (statA) instantly and accurately.
Conversion Formula
statA = A × 2997924580
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 Statamperes
The statampere (statA) is the current unit of the CGS-Gaussian system, equal to 1 statC/s = 1/(10c) A ≈ 3.336 × 10⁻¹⁰ A (exact, since c = 2.997 924 58 × 10⁸ m/s is exact). Two long parallel wires each carrying 1 statA and separated by 1 cm experience a force of 1/c² dyn per centimetre. The statampere is used in electrostatics texts where Coulomb's law is written without ε₀. 1 statA ≈ 333.6 pA.
Quick Reference Table
| Amperes (A) | Statamperes (statA) |
|---|---|
| 1 A | 2.998 × 109 statA |
| 2 A | 5.996 × 109 statA |
| 5 A | 1.499 × 1010 statA |
| 10 A | 2.998 × 1010 statA |
| 25 A | 7.495 × 1010 statA |
| 50 A | 1.499 × 1011 statA |
| 100 A | 2.998 × 1011 statA |