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Milliamps to Amps Conversion

Milliamps and amps are units used worldwide to measure electrical current strength. 

Amperes are the base unit used to measure electric current in the International System of Units. A milliampere is a modified version of the ampere used to measure things with smaller amounts of electrical current, so you don’t have to record in tiny decimals or resort to exponents. 

We’ll teach you everything you need to know about amps, milliamps, and how to convert them.

What Is a Milliampere?

A milliampere (mA) is one-thousandth of an ampere.  The prefix “milli” means one-thousandth of whatever base unit it precedes. Milliamperes are used to measure small amounts of electrical current, making it easier than using small decimals of amps. 

If you want to convert Wh to mAh, use this formula: 

mAh = Wh/(V x 1,000)

For instance, a 5Wh battery at 5 volts:

mAh = 5/(5 x 1,000) = 1,000 mAh

What Is an Ampere?

An ampere or amp (A) is the base unit to measure electric current in the International System of Units (SI), so it’s used worldwide for measuring power. It was named after the famous French physicist André-Marie Ampère.

Since amperes are power units and power is a product of current and voltage, you can easily calculate your amperes using the expression below if you know your watts and voltage.

Amps = Watts/Volts (A=W/V)

A battery’s capacity is often recorded in watt-hours (Wh), or the number of watts used in one hour, rather than amp-hours. While you can record battery capacity in amp-hours (Ah), most devices we use are reported in W and kW, making it easier for consumers to understand when we report capacity in Wh or kWh. 

For example, EcoFlow’s Portable Power Stations (PPS) with their powerful LiFePO4 battery chemistry are typically recorded in Wh or kWh, so you know how long your battery will last based on the watts you use each hour.

Further, the lightweight and highly portable EcoFlow RIVER 2 PPS starts at 256Wh of capacity and is perfect for hiking, fishing, or a trip to the beach.

More robust units like EcoFlow’s DELTA Series used for larger devices for longer periods are reported in kWh where 1000Wh = 1kWh. They range from about 1-6kWh with optional expandable capacities. 

Milliampere to Ampere Conversion Table

MilliamperesAmperes
1mA0.001A
2mA0.002A
3mA0.003A
4mA0.004A
5mA0.005A
6mA0.006A
7mA0.007A
8mA0.008A
9mA0.009A
10mA0.01A
20mA0.02A
30mA0.03A
40mA0.04A
50mA0.05A
60mA0.06A
70mA0.07A
80mA0.08A
90mA0.09A
100mA0.1A
200mA0.2A

How Do You Convert mA to Amps?

Since a mA or milliampere is one-thousandth of an amp, simply divide your mA by 1000. 

A = mA/1000

For example, if you have 20mA:

A = 20mA/1000(mA/A) = 0.02A

Or, for 2000mA:

A = 2000mA/1000(mA/A) = 2A

Frequently Asked Questions

How Many Amps Is 50 mA?

Since a milliampere (mA) is one-thousandth of an amp, divide mA by 1000 to get amps. In this case, 50/1000 is 0.05 amps. 

Is 1 Amp the Same as 1000 Milliamps?

Yes, 1 amp is the same as 1000 milliamps. This is because a milliamp is one-thousand of an amp. So 1000 milliamps/1000 = 1 amp.

Are 500 Milliamps the Same as .5 Amps? 

Yes, 500 milliamps is the same as 0.5 amps because a milliamp is one-thousandth of an amp. To convert between the two, divide mA by 1000. Here 500mA/1000ma/A = 0.5A

Final Thoughts

Now you know what amperes and milliamperes mean and how to convert between the two. It’s super easy since a milliamp is simply one-thousandth of an amp. 

Even though amps are the standard (SI) unit to measure electrical current, we typically report capacity in products like EcoFlow’s Portable Power Stations in watt-hours (Wh) and kilowatt-hours (kWh) because our devices are reported in W and kW rather than amps. This makes it easier to understand how our products can power your devices.

ECOFLOW
ECOFLOWhttps://www.ecoflow.com/
EcoFlow is a portable power and renewable energy solutions company. Since its founding in 2017, EcoFlow has provided peace-of-mind power to customers in over 85 markets through its DELTA and RIVER product lines of portable power stations and eco-friendly accessories.
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