# Calculators

• ## Fuse Size Calculator

The primary purpose of having a fuse in electrical systems is to protect the wires. The secondary purpose is circuit protection. Without a fuse, wires will overheat and get damaged when exposed to currents above their maximum current. Even worse, the wires could start a fire, destroying the whole electrical system.

• ## Solar Panel Series and Parallel Calculator

Solar panel series and parallel calculator the wattage of a solar array in series, parallel, and series-parallel configs. This way, you can readily tell the optimal configuration for your solar power system. Some solar panels in series will generate more power than when they have parallel wiring. Contrarily, others have higher output when in parallel.…

• ## Solar Panel Voltage Calculator

What Is Solar Panel Voc? Solar panel Voc is short for solar panel open circuit voltage. It is the maximum voltage of a solar panel when it isn’t connected to any load – no charge controllers, inverters, or anything. All solar panels come with an open circuit voltage rating. However, this rating is based on…

Using this Solar Irradiance Calculator What Is Solar Irradiance? Solar irradiance measures the power density of solar radiation incident on a certain surface. It is the power per unit area a surface receives from the sun, measured in watts per square meter (W/m²). Solar panels perform better with higher irradiance. But irradiance varies with factors…

• ## Solar Panel Charge Time Calculator

The factors affecting the charging process differ when charging a battery with a solar panel instead of a regular charger. Hence, the need for a solar panel charge time calculator is different from a regular battery charge time calculator. How to Use Our Solar Panel Charge Time Calculator How to Calculate Solar Charging Time Using…

• ## Solar Panel Azimuth Calculator

A solar panel azimuth angle is the horizontal angle observed clockwise north between the Sun and solar panels. In other words, it is the angle measured clockwise north from the local horizon of solar panels to the sun’s position on the horizontal plane. It is basically an angle that describes the position of the sun…

• ## Solar Panel Angle Calculator

Generally, the optimal orientation for any solar technology is when the sun’s rays are at maximum solar elevation angle (90 degrees) from them. In other words, when the sun’s rays shine directly on the surface of solar panels, the panels get the highest amount of solar energy. However, because the sun moves around and the…

• ## Battery Charge Time Calculator

Battery charge time is simply how long it would take for a battery to be fully charged after getting fully discharged. When not fully discharged, battery charge time is the time it will take a rechargeable battery to get a full charge from its current state of charge. How to Use Our Battery Charge Time…

• ## Battery Capacity Calculator

What is Battery Capacity? Generally, battery capacity is the amount of electricity a battery can generate. It may also be defined as the amount of energy stored in a battery. Typically, battery capacity is expressed in amp-hours (Ah). However, other units like milliamp-hours (mAh), watt-hours (Wh), and kilowatt-hours (kWh) may also be used to represent…

• ## Solar Panel Size Calculator and Charts

How to Calculate the Size of Solar Panel I Need To determine how many solar panels you need with our solar calculator, enter the following in their given fields: Battery depth of discharge Battery capacity in Ah Battery voltage Battery type Charge time (peak sun hours) Solar charge controller type Then click on calculate. Example…

• ## Watts to Volts (W to V) Conversion Calculator

What is Watts? Watts, W is the unit of electric power. It is a measure of energy usage or generation per hour. What is Volts? Volts, V is the unit of voltage (also known as electrical pressure or potential difference). It is a measure of the force required to move electrons round a closed electrical…

• ## Watts to Kilowatt Hours (W to kWh) Conversion Calculator

What is Watts? Watts is the unit for power. When applied to electrical systems, it is rate at which an electric circuit uses energy. In other words, it is the amount of energy an electrical system consumes or produces per unit time. Watts is typically represented with W. What is Kilowatt Hours? Kilowatt-hours is a…

• ## Kilowatt Hours to Watts (kWh to W) Conversion Calculator

What is Kilowatt Hours (kWh)? Kilowatt-hours is a unit used to express energy consumption, particularly electrical energy. It is the amount of power (in kilowatts) electrical appliances consume or generate over a given period (in hours). In other words, one kilowatt-hour is the energy equivalent of a power consumption or production of one kilowatt over…

• ## Volts to Watts (V to W) Conversion Calculator

What is Volts? Volts – short form of voltage – is the S.I unit of electromotive force, which may also be thought of as electrical pressure. We may also represent it with V. Volts is a measure of the amount of electromotive force that drives electric charge around a closed circuit through a certain amount…

• ## Watts to Amps (W to A) Conversion Calculator

What Is Amps? Amps is short for amperes – the S.I unit of electrical current. It measures electrical current, which is the rate of flow of electrical charge/electrons through a circuit per unit time. Essentially, amps represents the amount of electrons moving through a circuit per second. What Is Watts? Watts is the S.I unit…

• ## Amps to Watts (A to W) Conversion Calculator

What Is Amps? Amps is the unit of measurement for electrical current. It is a measure of the amount of electrons flowing through a circuit per unit time. In other words, it is a measure of the speed with which electrical charges flow through electrical conductors in a circuit. Amps, which is the S.I unit…

• ## Amps to Milliamps (A to mA) Conversion Calculator

What Is Ampere? According to the international system of units, ampere is the base unit of electric current. It is the rate at which electrons travel through an electric conductor. What is Milliampere? Milliampere is a representation of ampere in a lower magnitude, and it is equal to one thousandth ampere (⅟1000 A). How to…

• ## Milliamps to Amps (mA to A) Conversion Calculator

Ampere Ampere is the base unit of electrical current in the international system of units (SI unit). It represents the rate at which electrical charge flows through an electric conductor. An older definition describes one ampere as the constant current at which two parallel conductors with infinite length will produce a force equal to 0.2…

• ## Watt Hours to Watts (Wh to W) Conversion Calculator

What Is Watt-Hour (Wh)? Watt-hour (Wh) is a measure of electrical energy. It represents the total energy usage or output when a given amount of power is used or produced for a certain number of hours. For example, when a device consumes 1 W for 1 hour, it would have used one watt-hour (1 Wh)…

• ## Watts to Watt Hours (W to Wh) Conversion Calculator

What Is Watt (W)? Watt is the S.I unit of power. Power, in turn, is the rate at which energy is transferred within a system. In electrical terms, power is the energy transfer rate per second within a circuit. Going by the definition of power, watt is a measure of the amount of energy transferred…

• ## Watt Hours to Amp Hours (Wh to Ah) Conversion Calculator

What Is a Watt-Hour? At its simplest, watt-hours = power over a period of time (one hour). Watt-hours (Wh) is a measure of how much energy an electrical system uses when a given amount of power is consumed over a one-hour period. Wh typically represents electrical power consumption. However, when used to describe energy sources…

• ## Kilowatt Hours to Amp Hours (kWh to Ah) Conversion Calculator

What Is Kilowatt-Hours? Kilowatt-Hours (kWh) represents the electrical energy consumed by a device that uses a certain amount of power for one hour. While kWh is not the SI unit of energy, it is typically used in measurements involving electricity consumption. What Is an Amp Hour? Amp-Hours (Ah) is a unit of electrical charge that…

• ## Watt Hours to Milliamp Hours (Wh to mAh) Conversion Calculator

What Is Watt-Hours? Watt-hours (Wh) is a unit that measures the amount of electrical energy consumed or produced by electrical appliances over time. To be more descriptive, it is the amount of electrical energy generated or used when a certain amount of power is used over one time. What Is Milliamp-Hours? Milliamp-hours (mAh) is a…

• ## Milliamp Hours to Watt Hours (mAh to Wh) Conversion Calculator

What Is Milliamp-Hours (mAh)? Milliamp-hours is short for milliampere-hours. It is a unit that measures how much electric charge a power source will discharge over a one hour period at a specific voltage. Milliamp-hours, sometimes written as mAh, is usually used as a measure of battery capacity. It gives a general idea of how long…

• ## Amp Hours to Watt Hours (Ah to Wh) Conversion Calculator

What Is Amp-Hours (Ah)? Amp-hours is a measure of the amount of electrical charge an electric power source will discharge within one hour at a specific voltage. Amp-hours (Ah) is not the only unit used to represent battery capacity. Other units like milliamp-hours (mAh) and watt-hours (Wh) also represent battery capacity. However, it is more…

• ## Amp Hours to Kilowatt Hours (Ah to kWh) Conversion Calculator

What Is Amp Hour? What Does Ah Mean on a Battery? Amp-hour (also ampere-hour) represents the amount of electric charge that a power source will discharge within one hour at a given voltage. Amp-hours (Ah) is used to represent the capacity of most batteries. Although, in some cases, the metric prefix – milli – may…