# SolarCalcLab

> Solar calculators with real sun data


## Posts

- [What Is Net Metering and How Does It Work for Solar?](https://solarcalclab.com/blog/what-is-net-metering/): Net metering credits solar owners for power sent to the grid. Learn how credits, true-ups and net billing work, and what NEM 3.0 changed.

## Pages

- [Converters](https://solarcalclab.com/converters/): Quick electrical and energy unit converters.
- [All calculators](https://solarcalclab.com/calculators/): Solar and electrical calculators with the formula on every page.
- [Contact](https://solarcalclab.com/contact/): Questions, corrections or ideas for a new calculator? Send us a message.
- [Terms of use](https://solarcalclab.com/terms/): The rules for using SolarCalcLab.
- [Disclaimer](https://solarcalclab.com/disclaimer/): Our calculators are planning tools, not professional advice.
- [Report an error](https://solarcalclab.com/report-an-error/): Spotted a wrong number or an out-of-date rule? Tell us and we will fix it.
- [Data sources](https://solarcalclab.com/data-sources/): The datasets, standards and regulators our calculators rely on.
- [Editorial policy](https://solarcalclab.com/editorial-policy/): How we research, write, check and update every guide and calculator.
- [How we calculate](https://solarcalclab.com/how-we-calculate/): The method behind every SolarCalcLab result, step by step.
- [About SolarCalcLab](https://solarcalclab.com/about/): Free solar and electrical calculators that show their working.
- [Voltage Drop Calculator](https://solarcalclab.com/voltage-drop-calculator/): Voltage drop is the voltage lost in a cable's resistance.
- [kVA to kW Calculator](https://solarcalclab.com/kva-to-kw-calculator/): To convert kVA to kW, multiply apparent power by the power factor: kW = kVA × PF.
- [kW to Amps Calculator](https://solarcalclab.com/kw-to-amps-calculator/): To convert kW to amps, multiply kilowatts by 1,000 and divide by the voltage. For DC, I = 1,000 × P / V. For single-phase AC, I = 1,000 × P / (PF × V).
- [Amps to Watts Calculator](https://solarcalclab.com/amps-to-watts-calculator/): To convert amps to watts, multiply the current by the voltage. For DC, P = V × I, so 15 A at 120 V equals 1,800 W.
- [Watts to Amps Calculator](https://solarcalclab.com/watts-to-amps-calculator/): To convert watts to amps, divide the power by the voltage. For DC, I = P / V, so a 1,500 W heater on 120 V draws 12.5 A.
- [Guides](https://solarcalclab.com/blog/)
- [Home](https://solarcalclab.com/)
- [Privacy policy](https://solarcalclab.com/privacy-policy/): What we collect, why, and the choices you have.

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