Build your camper, we do the math
Free calculators for your camper van conversion or RV build. Calculate cables, batteries, solar panels, weight and more. Supports metric (mm²) and AWG.
Over 4,600+ calculations made
What can you calculate?
Electrical Planner
Plan your complete electrical installation with automatic calculations for cables, fuses, battery and more.
Open tool→Cable calculator
Calculate the minimum cable size based on voltage, current, length and allowed voltage drop.
Open tool→Van Advisor
Find out which van suits you best based on your needs and situation.
Open tool→Floor Plan Designer
Design your campervan interior layout with an interactive 2D floor plan. Drag and drop furniture onto a scale model of your van.
Open tool→R-value & heat loss calculator
Calculate R-values and total heat loss for your camper insulation build-up.
Open tool→Heating Calculator
Calculate how much heating power you need and which fuel tank or gas bottle fits your camper van.
Open tool→What other builders say
Ok, these are made up. But your experience could be here!
“With the cable and weight tools I could make decisions much faster. No more scattered spreadsheets.”
“Nice that everything is in plain language and works without an account. Quickly recalculate something and get back to building.”
“The tools give me a solid first estimate. For the fine details I still talk to a specialist, exactly as it should be.”
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