Water & Cargo Weight Calculator

Estimate how much water, propane, batteries and other cargo add to a trailer.

Fresh water (gal)

Other cargo (lb)

Propane / tanks (lb)

Batteries / power gear (lb)

This tool uses 8.34 lb per U.S. gallon as a practical water-weight estimate.

Keep this result in your TowAtlas history.

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Trusted CalculationsMath built for real towing and hauling decisions.

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Built for the RoadFast tools designed for phone use at the truck or scale.

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Two AudiencesRV/trailer tools and dedicated commercial-driver utilities.

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Your Data, Your ChoiceUse locally or sync saved setups through your TowAtlas account.