20 miliamps is equal to 0.02 amps.
Table of Contents
To convert miliamps (mA) to amps (A), you divide the number of miliamps by 1000 because 1 amp is 1000 miliamps. So, 20 mA divided by 1000 gives 0.02 A.
Conversion Tool
Result in amps:
Conversion Formula
The formula to convert miliamps to amps is:
amps = miliamps ÷ 1000
This works because “mili” means one-thousandth. So, 1 miliamp is 1/1000 of an amp. When you divide miliamps by 1000, you’re scaling the value down from thousandths to whole amps.
Example:
- Convert 20 mA to amps.
- 20 mA ÷ 1000 = 0.02 A
- So, 20 miliamps equals 0.02 amps.
Conversion Example
- Convert 150 mA to amps:
- Divide 150 by 1000.
- 150 ÷ 1000 = 0.15 A.
- Result: 150 miliamps = 0.15 amps.
- Convert 500 mA to amps:
- 500 ÷ 1000 = 0.5 A.
- So 500 miliamps equal 0.5 amps.
- Convert 5 mA to amps:
- 5 ÷ 1000 = 0.005 A.
- 5 miliamps is 0.005 amps.
- Convert 1000 mA to amps:
- 1000 ÷ 1000 = 1 A.
- 1000 miliamps equal exactly 1 amp.
Conversion Chart
The table below shows values from -5.0 to 45.0 miliamps converted to amps. To use the chart, find the miliamp value on the left, then read across to see the equivalent amps. Negative values represent currents flowing opposite direction.
| Miliamps (mA) | Amps (A) |
|---|---|
| -5.0 | -0.005 |
| 0.0 | 0 |
| 5.0 | 0.005 |
| 10.0 | 0.01 |
| 15.0 | 0.015 |
| 20.0 | 0.02 |
| 25.0 | 0.025 |
| 30.0 | 0.03 |
| 35.0 | 0.035 |
| 40.0 | 0.04 |
| 45.0 | 0.045 |
Related Conversion Questions
- How many amps is 20 miliamps equal to?
- What is the amp value for 20 mA current?
- Can 20 miliamps be converted to amps directly?
- How do you convert 20 mA into amps step-by-step?
- Is 20 miliamps the same as 0.02 amps?
- What’s the formula to change 20 mA to amps?
- Why does 20 miliamps equal 0.02 amps?
Conversion Definitions
Miliamps: Miliamps (mA) is a unit of electric current equal to one-thousandth of an ampere. It is used to measure small currents in circuits, electronic devices, and sensors where amperes would be too large. The prefix “mili” means 1/1000, so 1 mA = 0.001 A.
Amps: Amps (A), short for amperes, is the basic SI unit to measure electric current. It quantifies the flow of electric charge through a conductor. One ampere equals one coulomb of charge passing a point per second, and it is commonly used across electrical and electronic applications.
Conversion FAQs
Can you convert miliamps to amps without a calculator?
Yes, converting miliamps to amps can be done mentally by moving the decimal point three places to the left, because 1 amp equals 1000 miliamps. For example, 500 mA becomes 0.5 A simply by shifting the decimal.
Why is the conversion factor 1000 when changing mA to A?
The factor 1000 comes from the metric prefix “mili” which means one-thousandth. So miliamps are one-thousandth of an ampere. Dividing by 1000 reverses that scaling and gives the value in amps.
What happens if I convert amps to miliamps?
When converting amps to miliamps, you multiply the amp value by 1000. This increases the unit size to smaller increments, useful when measuring smaller currents. For example, 0.02 amps is 20 miliamps.
Is it possible to have negative miliamps or amps?
Yes, negative values indicate current flowing in the opposite direction. Both miliamps and amps can be negative depending on the circuit and reference direction chosen for the current.
How precise is the conversion from miliamps to amps?
The conversion is exact mathematically, since it’s a simple division by 1000. Precision depends on how many decimal places you keep. Using more decimals gives finer accuracy, but for most purposes, four decimal places suffices.