Milliampere is 0.001 ampere units.
Milliamperes to Picoamperes Converter — mA to pA
Convert Milliampere (mA) to Picoampere (pA) using the exact conversion factor (1 milliampere = 1,000,000,000 picoampere). See the formula, worked examples, and conversion table.
Milliamperes to Picoamperes 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.
Picoampere is 1e-12 ampere units.
Result = input x 0.001 / 1e-12.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Milliamperes to Picoamperes
Milliampere and Picoampere 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: Milliampere is 0.001 ampere units, and picoampere is 1e-12 ampere units.
Formula
picoamperes = milliamperes × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 milliampere equals 0.001 base units, and 1 picoampere equals 1e-12 base units, so dividing one by the other gives the direct milliampere-to-picoampere factor of 1000000000.
Simple example
1 mA × 1000000000 = 1,000,000,000 pA
1 milliampere = 1,000,000,000 picoamperes.
Real-world example
120 mA × 1000000000 = 120,000,000,000 pA
120 milliamperes = 120,000,000,000 picoamperes.
Conversion table
| Milliampere (mA) | Picoampere (pA) |
|---|---|
| 1 mA | 1,000,000,000 pA |
| 5 mA | 5,000,000,000 pA |
| 12 mA | 12,000,000,000 pA |
| 24 mA | 24,000,000,000 pA |
| 120 mA | 120,000,000,000 pA |
| 240 mA | 240,000,000,000 pA |
Reverse conversion: Picoampere to Milliampere
1 pA × 1e-9 = 1e-9 mA
1 picoampere = 1e-9 milliamperes.
milliamperes = picoamperes × 1e-9
For a page dedicated to this direction, see Picoampere to Milliampere.
Understanding the Milliampere (mA)
Milliampere is 0.001 ampere units.
Understanding the Picoampere (pA)
Picoampere is 1e-12 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picoamperes are in 1 milliampere?
1 milliampere equals 1,000,000,000 picoamperes, using the exact defined conversion factor rather than an estimate.
How do I convert milliampere to picoampere?
Multiply the milliampere value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert picoampere back to milliampere?
Use the reverse factor: 1 picoampere equals 1e-9 milliamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a milliampere?
Milliampere (mA) is a unit of electricity.
What is a picoampere?
Picoampere (pA) is a unit of electricity.
Is the milliampere to picoampere conversion exact?
Yes. Both milliampere and picoampere are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 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.