9 Sheets. One Spreadsheet. Everything Your Van Build Needs.
Every sheet is linked \u2014 change a component in the electrical calculator and your budget, weight, and shopping list update automatically.
Electrical Load Calculator
Enter your appliances and it auto-sizes battery bank, solar array, and inverter capacity with a safety buffer.
Wire Gauge & Fuse Sizing
Cross-references amp draw and wire run length against the NEC ampacity chart so you never undersize a circuit.
Automated Budget Tracker
Category-by-category spend tracking that rolls up into a live total vs. your target budget.
Weight & Payload Monitor
Logs component weight as you build so you stay under GVWR and axle ratings.
Shopping & Parts List
Auto-generated parts list with linked specs, so you’re not re-Googling amp-hour ratings mid-build.
Layout Planner
Simple grid-based layout sheet to test bed, cabinet, and galley placement before you cut plywood.
Water System Sizing
Fresh/grey tank sizing based on trip length and daily usage assumptions.
Timeline & Task Tracker
Build-phase checklist so electrical goes in before insulation goes in before paneling.
Cost-Per-Van Comparison
Compares your build cost against average Sprinter/Transit/ProMaster conversion costs.
Free tools give you numbers. This gives you a plan.
Stop Guessing. Build It Right.
The 9-sheet van conversion spreadsheet with a built-in electrical safety calculator, budget tracker, and weight monitor.
30-day money-back guarantee · Works in Excel & Google Sheets