Milliampere to Ampere Converter
Convert Milliampere (mA) to Ampere (A) instantly. 1 mA = 0.001 A.
Electric Current Converter
11 units available
1 mA = 0.001 A
Formula:
A = mA × 0.001With your value: 1 mA = 0.001 A
Other Milliampere to Ampere conversions
Milliampere to Ampere Conversion Table
| Milliampere (mA) | Ampere (A) |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Ampere to Milliampere Conversion Table
| Ampere (A) | Milliampere (mA) |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Milliampere (mA)
Electric Current
Traceable to the ampere, defined by fixing the elementary charge at 1.602 176 634 × 10⁻¹⁹ C.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Ampere (A)
Electric Current
Traceable to the ampere, defined by fixing the elementary charge at 1.602 176 634 × 10⁻¹⁹ C.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Milliampere to Ampere
To convert from Milliampere (mA) to Ampere (A), multiply the value by 0.001.
Formula: A = mA × 0.001
Reverse: mA = A × 1,000
Step-by-Step Example
- Start with your value in Milliampere. For example: 5 mA
- Multiply by the conversion factor: 5 x 0.001
- The result is: 0.005 A
About Milliampere
The milliampere (mA) is a unit of electric current. One milliampere equals 0.001 amperes. UnitConvertLab converts it against every other electric current unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: electric current calculations, engineering and science, education.
About Ampere
The ampere (A) is a unit of electric current. One ampere equals 1 ampere. UnitConvertLab converts it against every other electric current unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: electric current calculations, engineering and science, education.
Frequently Asked Questions
How many Ampere are in 1 Milliampere?
There are exactly 0.001 Ampere in 1 Milliampere. This means the conversion factor from Milliampere to Ampere is 0.001.
What is the formula to convert Milliampere to Ampere?
The formula to convert Milliampere to Ampere is: A = mA × 0.001. For example, to convert 10 Milliampere to Ampere, you would multiply 10 by 0.001.
What is a Milliampere?
The milliampere (mA) is a unit of electric current. One milliampere equals 0.001 amperes. UnitConvertLab converts it against every other electric current unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Ampere?
The ampere (A) is a unit of electric current. One ampere equals 1 ampere. UnitConvertLab converts it against every other electric current unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Milliampere?
The Milliampere is commonly used in electric current calculations, engineering and science, education.
Related Electric Current Conversions
Cite this page
UnitConvertLab. (2026). Milliampere to Ampere converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/milliampere-to-ampere