20 milliamps (mA) equals 0.02 amps (A).
To convert milliamps to amps, you divide the milliamp value by 1000 because 1 amp equals 1000 milliamps. So, 20 milliamps divided by 1000 gives 0.02 amps.
Conversion Tool
Result in amps:
Conversion Formula
The conversion formula from milliamps to amps is:
Amps (A) = Milliamps (mA) ÷ 1000
This works because the prefix “milli” means one-thousandth. So, one milliamp is one-thousandth of an amp. Dividing the milliamps value by 1000 converts it to amps.
Example:
- Given: 20 mA
- Divide 20 by 1000: 20 ÷ 1000 = 0.02
- Result: 0.02 amps
Conversion Example
- Example 1: Convert 50 mA to amps
- Start with 50 milliamps
- Divide 50 by 1000: 50 ÷ 1000 = 0.05
- So, 50 mA equals 0.05 amps
- Example 2: Convert 125 mA to amps
- Take 125 milliamps
- Divide 125 by 1000: 125 ÷ 1000 = 0.125
- Result is 0.125 amps
- Example 3: Convert 7 mA to amps
- Start with 7 milliamps
- Divide 7 by 1000: 7 ÷ 1000 = 0.007
- So, 7 mA is 0.007 amps
- Example 4: Convert 300 mA to amps
- Use 300 milliamps
- Divide 300 by 1000: 300 ÷ 1000 = 0.3
- Therefore, 300 mA equals 0.3 amps
Conversion Chart
The chart below shows milliamps values from -5.0 to 45.0, converted to amps. To find the amp value, look at the milliamps in the left column and see its corresponding amps in the right column.
| Milliamps (mA) | Amps (A) |
|---|---|
| -5.0 | -0.005 |
| 0.0 | 0.000 |
| 5.0 | 0.005 |
| 10.0 | 0.010 |
| 15.0 | 0.015 |
| 20.0 | 0.020 |
| 25.0 | 0.025 |
| 30.0 | 0.030 |
| 35.0 | 0.035 |
| 40.0 | 0.040 |
| 45.0 | 0.045 |
Related Conversion Questions
- How many amps are 20 milliamps equal to?
- What is the formula for converting 20 mA to amps?
- Can you convert 20 milliamps into amps without a calculator?
- Is 20 mA a large or small amp value?
- How does 20 milliamps compare to 0.02 amps?
- What device uses 20 milliamps in amps?
- How to convert 20 mA to amps in electronics?
Conversion Definitions
Milliamps: Milliamps, abbreviated as mA, is a unit of electric current that is one-thousandth of an ampere. It measures small currents used in electronic circuits and devices, making it useful for precise measurements in low-power electrical components.
Amps: Amps, or amperes, are the standard unit measuring electric current in the International System of Units. One ampere represents the flow of one coulomb of charge per second through a conductor, indicating the amount of electric charge moving past a point.
Conversion FAQs
Why divide milliamps by 1000 to get amps?
Because the prefix “milli” means one-thousandth, 1 milliamp equals 1/1000th of an amp. Dividing the milliamps value by 1000 scales it down to amps correctly, reflecting the smaller unit size.
Can milliamps values be negative?
Yes, milliamps can be negative if current flows in the opposite direction. Negative values indicate direction, but the conversion formula remains the same by dividing by 1000.
Is it possible to convert amps to milliamps?
Definitely, to convert amps to milliamps, multiply the amp value by 1000. This reverses the conversion from milliamps to amps.
What tools can help convert milliamps to amps quickly?
Besides manual calculations, online calculators, conversion apps, and the JavaScript tool above can convert milliamps to amps instantly and accurately.
Why do some devices use milliamps instead of amps?
Devices operating at low currents use milliamps because amps are too large a unit to measure small currents precisely. Milliamps provide finer resolution for sensitive electronics.