⚡ Battery & solar sizing
Pick what you run off-grid; we size the lithium bank, solar array, and inverter.
Peak sun hours / day4
Reserve (days of autonomy)1.5
Daily use
0 Wh
Battery (12V)
0 Ah
Solar array
0 W
Inverter
0 W
LiFePO4 at 12.8V, 85% usable depth of discharge, 75% solar derate. Confirm wire and fuse sizing against an ampacity chart.
💧 Water tank sizing
How much fresh and gray capacity you need between fills.
People2
Water per person / day5 gal
Days between fills5
Fresh tank
0 gal
Gray tank
0 gal
Full water weight
0 lb
fresh, when full
Per fill
0 gal
used before refill
Water weighs 8.34 lb per gallon, a big tank is one of the heaviest items in a build.
⚖️ Weight & payload
Make sure your loaded build stays under the vehicle payload.
Vehicle payload
Estimated build weight (lb)1,800
Fresh water (gal)40
People + gear (lb)450
Loaded weight
0 lb
Payload left
0 lb
-
Overloading hurts braking, handling, and tires, and can complicate an insurance claim. Weigh the finished van at a public scale.
💰 Budget estimator
A rough all-in range for the vehicle plus the build.
Build style
Vehicle cost$38,000
Typical all-in
$0
Range
$0 – $0
Rough estimate including a 12% contingency. For a personalized, itemized budget, use the Build Planner.