Yoctoampere is 1e-24 ampere units.
Yoctoamperes to Attoamperes Converter — yA to aA
Convert Yoctoampere (yA) to Attoampere (aA) using the exact conversion factor (1 yoctoampere = 0.000001 attoampere). See the formula, worked examples, and conversion table.
Yoctoamperes to Attoamperes converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Attoampere is 1e-18 ampere units.
Result = input x 1e-24 / 1e-18.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Yoctoamperes to Attoamperes
Yoctoampere and Attoampere both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Yoctoampere is 1e-24 ampere units, and attoampere is 1e-18 ampere units.
Formula
attoamperes = yoctoamperes × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 yoctoampere equals 1e-24 base units, and 1 attoampere equals 1e-18 base units, so dividing one by the other gives the direct yoctoampere-to-attoampere factor of 0.000001.
Simple example
1 yA × 0.000001 = 0.000001 aA
1 yoctoampere = 0.000001 attoamperes.
Real-world example
120 yA × 0.000001 = 0.00012 aA
120 yoctoamperes = 0.00012 attoamperes.
Conversion table
| Yoctoampere (yA) | Attoampere (aA) |
|---|---|
| 1 yA | 0.000001 aA |
| 5 yA | 0.000005 aA |
| 12 yA | 0.000012 aA |
| 24 yA | 0.000024 aA |
| 120 yA | 0.00012 aA |
| 240 yA | 0.00024 aA |
Reverse conversion: Attoampere to Yoctoampere
0.000001 aA × 1000000 = 1 yA
0.000001 attoamperes = 1 yoctoamperes.
yoctoamperes = attoamperes × 1000000
For a page dedicated to this direction, see Attoampere to Yoctoampere.
Understanding the Yoctoampere (yA)
Yoctoampere is 1e-24 ampere units.
Understanding the Attoampere (aA)
Attoampere is 1e-18 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many attoamperes are in 1 yoctoampere?
1 yoctoampere equals 0.000001 attoamperes, using the exact defined conversion factor rather than an estimate.
How do I convert yoctoampere to attoampere?
Multiply the yoctoampere value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert attoampere back to yoctoampere?
Use the reverse factor: 1 attoampere equals 1,000,000 yoctoamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a yoctoampere?
Yoctoampere (yA) is a unit of electricity.
What is a attoampere?
Attoampere (aA) is a unit of electricity.
Is the yoctoampere to attoampere conversion exact?
Yes. Both yoctoampere and attoampere are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.