Greenlight is the RV checklist and weight calculator that tells you, before every drive, if your rig is ready to roll.
Pick your rig (travel trailer, 5th wheel, Class A, Class C or camper van), copy GVWR and empty weight from the weight label inside your door, and Greenlight does the rest. Works in pounds and feet, or kilograms and meters.
READY AT A GLANCE
One screen shows weight, hitch, clearance and checklist. When everything is clear, you get a big green light.
WEIGHT
See your cargo against your payload and your gross weight against the GVWR, with clear "within limits", "near limit" and "over limit" warnings. Water and propane are counted once, never twice.
DEPARTURE CHECKLIST
Interior, exterior, hitching and mechanical steps, filtered for your rig type. Remove the steps you don't need and get them back anytime.
GREENLIGHT PRO (one-time purchase, no subscription)
• Itemized loading: fresh, gray and black tanks in your own sizes, gear presets with your measured weights, permanent upgrades like batteries and solar, and passengers
• Tongue and pin weight check: keep 10–15% (trailers) or 15–25% (5th wheels) on the hitch, with your hitch rating as a hard limit
• Tow vehicle check: payload, combined weight and towing capacity, with tongue weight, people and cargo counted
• Scale ticket: every axle against its rating, plus your real tongue or pin weight
• Tire check: age from the DOT code and load capacity against your axles
• Clearance dashboard: your height, width and length in giant, high-contrast numbers, in feet and meters
• Custom checklist steps and auto-reset 4 or 6 hours after you finish, so a lunch stop never clears your list
PRIVATE BY DESIGN
No account, no ads, no tracking. Works offline. Your data never leaves your phone.
Greenlight gives estimates only. Always verify your weights at a certified scale and obey posted clearances.
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