24+ free interactive tools to help you design and build your dream camper van
Calculate solar panels and battery bank size based on daily usage and location.
Find the correct wire size to prevent voltage drop and overheating.
Calculate exact battery size (Ah) for your van based on appliances and usage.
Find the right inverter size for your microwave, coffee maker, and power tools.
Calculate correct wire gauge based on length, amps, and voltage drop.
Determine correct fuse amperage for any DC circuit based on wire gauge and load.
Compare voltage drop, wire size, and efficiency between 12V and 24V systems.
Calculate MPPT vs PWM controller size for your solar panel array.
Can you sleep sideways in your van? Interactive diagram for Sprinter, Transit, ProMaster.
Calculate plywood sheets needed for cabinets, bed platforms, and walls.
Calculate total storage cubic feet for kitchen, wardrobe, and garage.
Optimize natural light, cross-ventilation, and privacy in your layout.
Compare Thinsulate, Havelock wool, XPS foam, and spray foam insulation.
Find the right fan size (CFM) for your van length and climate.
Calculate BTU and diesel heater size for your van's heating needs.
Calculate moisture risk and get recommendations to prevent mold and rust.
Calculate freshwater and grey tank size based on people, shower, and days.
Calculate required pump PSI based on height, pipe length, and fixtures.
Estimate PEX tubing needed for your van's hot and cold water lines.
Calculate correct slope for grey tank and shower drain pipes.
Our AI-powered spreadsheet includes electrical calculator, budget tracker, weight monitor, and 6 more sheets.