Amperes to Milliamperes Converter
1 ampere (A) equals 1,000 milliamperes (mA).
Quick answer
- 1 ampere = 1,000 milliamperes
- 1 milliampere = 0.001 amperes
- Formula: mA = A × 1,000
1 ampere = 1,000 milliamperes
How to convert amperes to milliamperes
mA = A × 1,000
To convert amperes to milliamperes, multiply the number of amperes by 1,000.
Example: 42 A to mA
- Start with the value in amperes: 42 A.
- Multiply by 1,000: 42 × 1,000 = 42,000.
- Result: 42 amperes = 42,000 milliamperes.
Going the other way, 1 milliampere = 0.001 amperes, so to convert milliamperes back to amperes you divide by the same number. See milliamperes to amperes.
Amperes to milliamperes conversion table
| Amperes (A) | Milliamperes (mA) |
|---|---|
| 0.1 A | 100 mA |
| 0.2 A | 200 mA |
| 0.3 A | 300 mA |
| 0.4 A | 400 mA |
| 0.5 A | 500 mA |
| 0.6 A | 600 mA |
| 0.7 A | 700 mA |
| 0.8 A | 800 mA |
| 0.9 A | 900 mA |
| 1 A | 1,000 mA |
| 1.5 A | 1,500 mA |
| 2 A | 2,000 mA |
| 2.5 A | 2,500 mA |
| 3 A | 3,000 mA |
| 3.5 A | 3,500 mA |
| 4 A | 4,000 mA |
| 4.5 A | 4,500 mA |
| 5 A | 5,000 mA |
| 6 A | 6,000 mA |
| 7 A | 7,000 mA |
| 7.5 A | 7,500 mA |
| 8 A | 8,000 mA |
| 9 A | 9,000 mA |
| 10 A | 10,000 mA |
| 11 A | 11,000 mA |
| 12 A | 12,000 mA |
| 13 A | 13,000 mA |
| 14 A | 14,000 mA |
| 15 A | 15,000 mA |
| 16 A | 16,000 mA |
| 17 A | 17,000 mA |
| 18 A | 18,000 mA |
| 19 A | 19,000 mA |
| 20 A | 20,000 mA |
| 21 A | 21,000 mA |
| 22 A | 22,000 mA |
| 23 A | 23,000 mA |
| 24 A | 24,000 mA |
| 25 A | 25,000 mA |
| 26 A | 26,000 mA |
More A to mA values
- 27 A
- 28 A
- 29 A
- 30 A
- 31 A
- 32 A
- 33 A
- 34 A
- 35 A
- 36 A
- 37 A
- 38 A
- 39 A
- 40 A
- 41 A
- 42 A
- 43 A
- 44 A
- 45 A
- 46 A
- 47 A
- 48 A
- 49 A
- 50 A
- 51 A
- 52 A
- 53 A
- 54 A
- 55 A
- 56 A
- 57 A
- 58 A
- 59 A
- 60 A
- 61 A
- 62 A
- 63 A
- 64 A
- 65 A
- 66 A
- 67 A
- 68 A
- 69 A
- 70 A
- 71 A
- 72 A
- 73 A
- 74 A
- 75 A
- 76 A
- 77 A
- 78 A
- 79 A
- 80 A
- 81 A
- 82 A
- 83 A
- 84 A
- 85 A
- 86 A
- 87 A
- 88 A
- 89 A
- 90 A
- 91 A
- 92 A
- 93 A
- 94 A
- 95 A
- 96 A
- 97 A
- 98 A
- 99 A
- 100 A
- 110 A
- 120 A
- 130 A
- 140 A
- 150 A
- 160 A
- 170 A
- 180 A
- 190 A
- 200 A
- 210 A
- 220 A
- 230 A
- 240 A
- 250 A
- 260 A
- 270 A
- 280 A
- 290 A
- 300 A
- 310 A
- 320 A
- 330 A
- 340 A
- 350 A
- 360 A
- 370 A
- 380 A
- 390 A
- 400 A
- 410 A
- 420 A
- 430 A
- 440 A
- 450 A
- 460 A
- 470 A
- 480 A
- 490 A
- 500 A
- 600 A
- 700 A
- 800 A
- 900 A
- 1,000 A
- 1,200 A
- 1,500 A
- 2,000 A
- 2,500 A
- 3,000 A
- 4,000 A
- 5,000 A
- 10,000 A
What is an ampere?
The ampere is the SI base unit of electric current.
What is a milliampere?
The milliampere is used for small electronics, LEDs, sensors and battery drain.
Convert amperes to other units
Convert other units to milliamperes
Frequently asked questions
How many milliamperes are in an ampere?
One ampere is 1,000 milliamperes.
How many amperes are in a milliampere?
One milliampere is 0.001 amperes.
What is the formula to convert amperes to milliamperes?
mA = A × 1,000.