Milliampere is 0.001 ampere units.
Milliamperes to Deciamperes Converter — mA to dA
Convert Milliampere (mA) to Deciampere (dA) using the exact conversion factor (1 milliampere = 0.01 deciampere). See the formula, worked examples, and conversion table.
Milliamperes to Deciamperes 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.
Deciampere is 0.1 ampere units.
Result = input x 0.001 / 0.1.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Milliamperes to Deciamperes
Milliampere and Deciampere 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 deciampere is 0.1 ampere units.
Formula
deciamperes = milliamperes × 0.01
This factor comes from each unit's defined relationship to the category's base unit: 1 milliampere equals 0.001 base units, and 1 deciampere equals 0.1 base units, so dividing one by the other gives the direct milliampere-to-deciampere factor of 0.01.
Simple example
1 mA × 0.01 = 0.01 dA
1 milliampere = 0.01 deciamperes.
Real-world example
120 mA × 0.01 = 1.2 dA
120 milliamperes = 1.2 deciamperes.
Conversion table
| Milliampere (mA) | Deciampere (dA) |
|---|---|
| 1 mA | 0.01 dA |
| 5 mA | 0.05 dA |
| 12 mA | 0.12 dA |
| 24 mA | 0.24 dA |
| 120 mA | 1.2 dA |
| 240 mA | 2.4 dA |
Reverse conversion: Deciampere to Milliampere
0.01 dA × 100 = 1 mA
0.01 deciamperes = 1 milliampere.
milliamperes = deciamperes × 100
For a page dedicated to this direction, see Deciampere to Milliampere.
Understanding the Milliampere (mA)
Milliampere is 0.001 ampere units.
Understanding the Deciampere (dA)
Deciampere is 0.1 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many deciamperes are in 1 milliampere?
1 milliampere equals 0.01 deciamperes, using the exact defined conversion factor rather than an estimate.
How do I convert milliampere to deciampere?
Multiply the milliampere value by 0.01. The converter above does this instantly to whatever precision you set.
How do I convert deciampere back to milliampere?
Use the reverse factor: 1 deciampere equals 100 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 deciampere?
Deciampere (dA) is a unit of electricity.
Is the milliampere to deciampere conversion exact?
Yes. Both milliampere and deciampere are defined by fixed standards rather than physical artifacts, so the factor of 0.01 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.