Milliamps to Watts Converter
How to Convert Watts (W) to Milliamperes (mA)
👋 Curious about how power in watts translates to current in milliamperes? Let’s break it down! 🚀
W to mA Calculation Formula ✨
The current I in milliamperes (mA) is equal to the power P in watts (W) divided by the voltage V in volts (V) and then multiplied by 1,000:
I(mA) = (P(W) / V(V)) × 1,000Example Calculation
If you have a power measurement of 10 W and the voltage is 5 V, the calculation would be:
I(mA) = (10 W / 5 V) × 1,000 = 2,000 mAFormulas for Conversion
1. DC Circuit
Power (W) = Current (A) × Voltage (V)2. Single-Phase AC Circuit
Power (W) = Voltage (V) × Current (A) × Power Factor (PF)3. Three-Phase AC Circuit
Line-to-Line (L-L):
Power (W) = 3 × Voltage (V) × Current (A) × PFLine-to-Neutral (L-N):
Power (W) = 3 × Voltage (V) × Current (A) × PFUnderstanding the Conversion 🧠
Power (W)
Watts (W) represent the rate of energy transfer or conversion. It indicates how much energy is used per unit of time.
Voltage (V)
Voltage (V) is the electrical potential difference that drives the current through a circuit.
Current (mA)
Milliamperes (mA) represent the flow of electric charge. It is a measure of the current in a circuit.
Why It Matters
Understanding this conversion is crucial for:
- Calculating current requirements for devices
- Designing safe electrical systems
- Understanding power consumption
- Optimizing energy efficiency
Pro Tip
Always ensure you know the voltage when calculating current to get accurate results!
FAQs
Watts (W) measure power, while Milliamps (mA) measure current. The relationship between them depends on the voltage of the system. Power (W) equals voltage (V) multiplied by current (A).
The conversion between Watts and Milliamps requires knowing the voltage:
And to convert from Watts to Milliamps:
For example, in a 12V system with 24W:
Voltage is crucial because:
- It’s the key link between power (Watts) and current (Milliamps)
- The same power at different voltages results in different currents
- Higher voltage means lower current for the same power
- It affects the efficiency and safety of electrical systems
These measurements are commonly used in:
- Battery-powered devices and chargers
- LED lighting systems
- Solar power systems
- USB devices and power supplies
- Electronic component specifications
Several factors influence the relationship between power and current:
- System voltage and stability
- Circuit resistance
- Temperature effects
- Power factor (in AC systems)
- Component efficiency
Related Tools Code
Milliamp Hours to Amp Hours
microamp to milliamp
milliamp to amp
Ampere to Milliampere converter
