Solar Calculators

Solar Panel Output Calculator

Calculate daily and monthly energy output from your solar panels. Enter wattage, sun hours, and panel count for instant results.

Solar Panel and Battery Sizing Calculator

Size your complete off-grid solar system. Enter daily usage, sun hours, and battery specs to get panel and battery bank recommendations.

Solar Battery Charge Time Calculator

Calculate how long your solar panels take to charge your battery bank. Accounts for sun hours, system voltage, and real-world losses.

Solar Panel Size Estimator

Estimate what size solar panel array you need based on daily energy use. Quick sizing tool for homes, RVs, and off-grid setups.

Solar Battery Bank Size Calculator

Calculate the battery bank capacity your off-grid solar system needs. Enter daily usage, autonomy days, and system voltage.

Solar Watts to Amps Calculator

Convert solar panel output from watts to amps at any system voltage. Essential for sizing wires, fuses, and charge controllers.

Solar Panel Roof Area Calculator

Calculate how many solar panels fit on your roof and the total output potential. Enter roof dimensions and panel specs.

Solar Time Calculator

Calculate apparent solar time and solar noon for any location. Enter longitude and date to find when the sun is highest.

How Many Batteries for a Solar System?

Figure out how many batteries your solar system needs for reliable off-grid power. Enter daily usage, autonomy, and battery specs.

Solar Panel Size Calculator

Calculate the right solar panel wattage and quantity for your energy needs. Compare panel sizes and find the best fit.

What Size Inverter for a 1500W Heater?

Size an inverter, battery bank, and solar array to run a 1500W space heater off-grid. Complete system sizing in one tool.

How Many Batteries for a Camper?

Calculate how many batteries your camper or van needs based on your appliance list and travel style.