Use the calculator below to estimate electricity usage and cost based on the power requirements and usage of appliances. The amount of time and power that each appliance is used varies
Use this power converter to convert instantly between horsepower, kilowatts, megawatts, volt amperes, watts and other metric and imperial power units.
May 23, 2020 · A full guide on the key details of any power supply, charger or adapter including voltage, amperage and wattage.
Free online power converter - converts between 76 units of power, including watt [W], exawatt [EW], petawatt [PW], terawatt [TW], etc. Also, explore many other unit converters or learn
Mar 29, 2025 · Converting Watts (W) to Milliamperes (mA) requires knowing the voltage (V) of the circuit. The formula is: The current I in milliamperes (mA) is
Aug 17, 2024 · 240 volts is a voltage level commonly used in residential and industrial power systems, delivering efficient energy through two alternating current (AC) lines that are 180
To convert between electrical power units: 1) Watts to kilowatts: divide by 1000 (1 kW = 1000 W), 2) Horsepower to watts: multiply by 746 (1 hp = 746 W), 3) BTU/hour to watts: multiply by
Aug 15, 2025 · Milliamps (mA) - Power / Electricity Conversions A milliampere (often called "milliamp") is a unit of electric current in the International System
Aug 15, 2025 · Kilovolts (kV) - Power / Electricity Conversions A kilovolt is a unit of electric potential and electromotive force in the International System of
Aug 4, 2025 · This Calculator is designed to help you estimate how long it will take to charge a battery based on its capacity, charger current, and charge level.
Jul 27, 2023 · If you want to convert mA to A, you''ll need to divide the value by 1000. In this Jackery guide, we will reveal how to convert milliamps to amps or
It involves dividing the power in watts by the voltage (V) and then multiplying the result by 1000 to convert the value to milliamperes (mA). Formula: Current (mA) = (Power in Watts / Voltage in
The primary function of a battery is to store energy. We usually measure this energy in watt-hours, which correspond to one watt of power sustained for one
Aug 15, 2025 · Our online conversion calculators, formulas, and examples provide a quick and easy way to perform Power and Electricity conversions
May 9, 2024 · An mAh to kWh calculator converts the capacity of batteries from milliampere-hours, commonly used to describe the energy charge that a
May 14, 2025 · Calculate electricity consumption, cost, and carbon footprint. This calculator helps you determine how much electricity your appliances use, what it costs, and the environmental
Worried about choosing the right power bank for your phone? Our calculator will help you find the most appropriate power bank according to your
Comprehensive guide to understanding light bulb wattage, energy costs, and efficiency. Includes state-specific pricing and portable power station solutions.
Battery Charge Time Calculator This calculator helps you estimate the time required to charge your battery. How to Use Enter the Battery Capacity in milliampere-hours (mAh). Enter the
Nov 8, 2023 · When selecting the right power station, you''ll need to note its amp hours. Jackery is a renowned solar brand manufacturer of high-quality solar panels, solar generators, and power
SmallWebTool offers current converter tools that help you calculate the equivalent current values for different units, such as amperes, milliamperes, and microamperes. These tools are
Use the full power of this unit converter to convert mA With this calculator, it is possible to enter the value to be converted together with the original measurement unit; for example, ''477
Feb 1, 2023 · Find out your cell phone power consumption, calculate the electricity cost using our online calculator and save on your electricity bills.
Apr 27, 2025 · Check our appliance wattage chart for accurate power consumption then use our generator size calculator to choose Perfect
4 days ago · Calculate the energy usage for LED Light Bulb. Quickly see how much energy a LED Light Bulb uses and how much it costs to keep it running.
LED lamps are popular because of their ability to produce optimal lighting using much less energy than incandescent bulbs. You just need to pick the right
Dec 26, 2024 · The only purpose of this article is to save your time with the data I have compiled and to provide you with a comprehensive introduction: What
Aug 11, 2023 · If you want to convert mA to A, you''ll need to divide the value by 1000. In this Jackery guide, we will reveal how to convert milliamps to amps or
Calculate energy consumption with our Watt-Hour Calculator. Input mAh or W or V and determine wh, aiding in battery sizing and power management
Jun 16, 2025 · This conversion is especially useful in applications such as power supply design, circuit analysis, and component testing. It ensures accuracy
Why Convert mAh to Wh? Milliamp-hours (mAh) measure electric charge — essentially how long a battery can supply a certain current. However, it doesn''t account for voltage, which is crucial
A kilowatt-hour is a unit of measure for using one kilowatt of power for one hour. Just knowing what a kilowatt-hour is and what it can power can save you
The higher voltage means that more electricity can flow in an electric device. If you want to determine what is a watt-hour, it is the total amount of energy
Jun 13, 2024 · In the world of electricity and electronics, understanding the basic units of electrical current is fundamental. The Ampere (A) and the Milliampere
3 days ago · Power consumption calculator: calculates electric power / voltage / current / resistance. Enter 2 values to get the other values and press the Calculate button: Voltage (V)
Power Consumption is the total power consumed in milliwatt-hours (mWh). Current is the current consumption of the device or system in milliamperes

Converting Watts (W) to Milliamperes (mA) requires knowing the voltage (V) of the circuit. The formula is: 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: If you have a power measurement of 10 W and the voltage is 5 V, the calculation would be:
It involves dividing the power in watts by the voltage (V) and then multiplying the result by 1000 to convert the value to milliamperes (mA). Formula: Current (mA) = (Power in Watts / Voltage in V) x 1000 Suppose you have a device that consumes 20 watts of power and has a voltage of 5 volts.
Power consumption calculator: calculates electric power / voltage / current / resistance. Enter 2 values to get the other values and press the Calculate button: Voltage (V) calculation from current (I) and resistance (R): V(V) = I(A) × R(Ω) Complex power (S) calculation from voltage (V) and current (I):
Suppose you have a device that consumes 20 watts of power and has a voltage of 5 volts. Using the "Watts to mA Calculator" formula, you can determine the current consumption as follows: Current (mA) = (20 watts / 5 volts) x 1000 = 4000 mA Therefore, the device is consuming 4000 milliamperes (mA) of current.
Current is the current consumption of the device or system in milliamperes (mA). Voltage is the operating voltage of the device or system in volts (V). Time is the duration of operation in hours (h). The mA/h Power Consumption Calculator is particularly useful for estimating battery life in portable devices.
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: If you have a power measurement of 10 W and the voltage is 5 V, the calculation would be: Watts (W) represent the rate of energy transfer or conversion, indicating how much energy is used per unit of time.
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