One vehicle. Every tool. One project.
Standalone calculators are still here and always free to use with no account. The Full Project Planner is for when you want more: pick your bus or van once, and every integrated tool below reads that vehicle automatically and saves its results into the same place — instead of re-entering your dimensions into a pile of disconnected tools.
Free. No credit card, no upsell later — an account just gives your project somewhere to live between visits.
How it works
1. Pick a vehicle
Choose your bus platform (or van) once, with the same real interior dimensions the rest of the site uses. That becomes your project's shared source of truth.
2. Open integrated tools
Each tool below opens already knowing your vehicle's length, width and ceiling height — no re-entering it, no risk of one tool disagreeing with another about how big your build is.
3. Everything saves to one project
Results write back into the same project instead of a separate standalone plan, so your electrical system, water system, and layout all describe the same real build.
What's integrated so far
Off-Grid Electrical Planner
Solar, battery, generator, and battery layout sized to this build.
Roof Layout Planner
Solar panels, AC, vents, hatch and roof racks laid out to this vehicle's actual roof.
Heat Load Estimator
Heater sizing based on this vehicle's insulation, glazing and climate inputs.
Kitchen Design Planner
Cabinet, appliance and counter layout matched to this vehicle's interior.
Build Planner
Phased checklist, material quantities and budget for this vehicle.
Water & Tanks
Fresh, grey and black tank sizing built around this vehicle's usable floor space.
Combined project report
One export that pulls every system's results into a single document, instead of printing each tool's report separately.