Calculator
Marine Solar Sizing Calculator
Free marine solar sizing calculator. Daily energy need + peak sun hours + realistic loss factors → recommended panel wattage. Tuned to what we actually see on Yoto in the tropics.
Marine Battery Bank Sizing Calculator
Free marine battery bank sizing calculator. Plug in daily Wh consumption, days of autonomy, and chemistry — get the right bank size in Ah. The same calculator we use on Yoto.
Marine Fuse Sizing Calculator (ABYC E-11)
Free marine DC fuse size calculator using ABYC E-11 standards. Sizes fuses for continuous, intermittent, motor, and inverter loads — and warns if your wire can't safely handle the fuse.
Marine Wire Gauge Calculator (ABYC E-11)
Free marine DC wire size calculator using ABYC E-11 standards. Enter current, distance, voltage, and acceptable drop — get the right AWG every time. The same calculator we use on Yoto.