Amperes to Milliamperes Converter
Convert electric current from Amps to mA.
Result
0
Milliamperes (mA)
1 Amperes (A) = 1000 Milliamperes (mA)
How to convert Amperes (A) to Milliamperes (mA)?
How many Milliamperes (mA) are in Amperes (A)? The relationship is:
- 1 A = 1000 mA
- 1 mA = 0.001 A
To convert Amperes (A) to Milliamperes (mA), multiply the value by 1000.
Formula: Milliamperes (mA) = Amperes (A) × 1000
Step-by-Step Calculation
- Take the number of Amperes (A) you want to convert (e.g., 0.25).
- Multiply that value by 1000.
- The result is the value in Milliamperes (mA). (Example: 0.25 × 1000 = 250 mA).
How to use this converter?
Enter amperes (A) and get milliamperes (mA) instantly—useful for electronics, battery draw, circuit design, and device specs.
Common Amperes to Milliamperes Conversions
Quick reference guide for popular amp values.
0.01 A = 10 mA
0.05 A = 50 mA
0.1 A = 100 mA
0.25 A = 250 mA
0.5 A = 500 mA
1 A = 1000 mA
1.5 A = 1500 mA
2 A = 2000 mA
5 A = 5000 mA
10 A = 10000 mA
History: Amps and milliamps
The ampere (A) is the SI base unit of electric current. Milliamperes (mA) are used for smaller currents common in electronics and sensors.
Common Amperes to Milliamperes Conversions
| Amperes Input | Milliamperes Result |
|---|---|
| 0.01 A | 10 mA |
| 0.05 A | 50 mA |
| 0.1 A | 100 mA |
| 0.25 A | 250 mA |
| 0.5 A | 500 mA |
| 1 A | 1000 mA |
| 1.5 A | 1500 mA |
| 2 A | 2000 mA |
| 5 A | 5000 mA |
| 10 A | 10000 mA |
Frequently Asked Questions
How do I convert amps to milliamps?
Multiply amps by 1000 to get milliamps.
How many mA is 1 amp?
1 amp equals 1000 mA.
How many mA is 0.5 A?
0.5 A equals 500 mA.
How do I convert mA back to amps?
Divide milliamps by 1000 to get amps.
Is the conversion exact?
Yes—1 A is exactly 1000 mA.