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CampPowerCalc
Calculate exact battery + solar for your van build
Stop guessing your van power needs. CampPowerCalc is a free electrical calculator with 30+ real appliances. Get daily Wh, battery size, and solar wattage in one click. Features: real appliance database, inverter loss calculation, 20% safety buffer, alternator charging guidance. No signup. No email capture. No affiliate links. Built by a van builder tired of lead-gen calculators pretending to be free.
Hey hunters! 👋
I built CampPowerCalc after sizing my own Sprinter van electrical system. Every calculator I found was either too simplistic (just multiply watts × hours) or tried to sell me a solar kit.
So I made one that uses real appliance data, factors in inverter loss (~15%), and adds a 20% safety buffer — the same math I used for my own build.
It's completely free. No signup, no email capture, no affiliate links. Just the numbers you need to spec your battery bank and solar panels with confidence.
Would love feedback from anyone doing a van/RV build! What's your biggest pain point with power planning?
About CampPowerCalc on Product Hunt
“Calculate exact battery + solar for your van build”
CampPowerCalc was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #130 on the daily leaderboard. Stop guessing your van power needs. CampPowerCalc is a free electrical calculator with 30+ real appliances. Get daily Wh, battery size, and solar wattage in one click. Features: real appliance database, inverter loss calculation, 20% safety buffer, alternator charging guidance. No signup. No email capture. No affiliate links. Built by a van builder tired of lead-gen calculators pretending to be free.
On the analytics side, CampPowerCalc competes within Productivity, Developer Tools and Camping — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how CampPowerCalc performed against the three products that launched closest to it on the same day.
Who hunted CampPowerCalc?
CampPowerCalc was hunted by New User. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of CampPowerCalc including community comment highlights and product details, visit the product overview.
New User