Centiampere is 0.01 ampere units.
Centiamperes to Milliamperes Converter — cA to mA
Convert Centiampere (cA) to Milliampere (mA) using the exact conversion factor (1 centiampere = 10 milliampere). See the formula, worked examples, and conversion table.
Centiamperes to Milliamperes 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.
Milliampere is 0.001 ampere units.
Result = input x 0.01 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Centiamperes to Milliamperes
Centiampere and Milliampere 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: Centiampere is 0.01 ampere units, and milliampere is 0.001 ampere units.
Formula
milliamperes = centiamperes × 10
This factor comes from each unit's defined relationship to the category's base unit: 1 centiampere equals 0.01 base units, and 1 milliampere equals 0.001 base units, so dividing one by the other gives the direct centiampere-to-milliampere factor of 10.
Simple example
1 cA × 10 = 10 mA
1 centiampere = 10 milliamperes.
Real-world example
120 cA × 10 = 1,200 mA
120 centiamperes = 1,200 milliamperes.
Conversion table
| Centiampere (cA) | Milliampere (mA) |
|---|---|
| 1 cA | 10 mA |
| 5 cA | 50 mA |
| 12 cA | 120 mA |
| 24 cA | 240 mA |
| 120 cA | 1,200 mA |
| 240 cA | 2,400 mA |
Reverse conversion: Milliampere to Centiampere
10 mA × 0.1 = 1 cA
10 milliamperes = 1 centiampere.
centiamperes = milliamperes × 0.1
For a page dedicated to this direction, see Milliampere to Centiampere.
Understanding the Centiampere (cA)
Centiampere is 0.01 ampere units.
Understanding the Milliampere (mA)
Milliampere is 0.001 ampere units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliamperes are in 1 centiampere?
1 centiampere equals 10 milliamperes, using the exact defined conversion factor rather than an estimate.
How do I convert centiampere to milliampere?
Multiply the centiampere value by 10. The converter above does this instantly to whatever precision you set.
How do I convert milliampere back to centiampere?
Use the reverse factor: 1 milliampere equals 0.1 centiamperes. You can also use the swap control in the converter above to flip the direction instantly.
What is a centiampere?
Centiampere (cA) is a unit of electricity.
What is a milliampere?
Milliampere (mA) is a unit of electricity.
Is the centiampere to milliampere conversion exact?
Yes. Both centiampere and milliampere are defined by fixed standards rather than physical artifacts, so the factor of 10 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.