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CAT Scale

CAT Scale Tongue Weight Calculator

Use three consistent scale weighings to calculate loaded trailer weight, tongue weight and weight-distribution performance.

1. WDH engaged2. WDH disengaged3. Truck only
3-Weigh MethodWhat you get
Loaded trailer weightCalculated
Tongue weightCalculated
WDH restorationCompared
Three consistent tickets let TowAtlas separate truck weight, trailer weight and hitch redistribution.
1

WDH engaged

Weigh the combination as you normally tow.

2

WDH disengaged

Keep passengers, fuel and cargo unchanged.

3

Truck only

Same truck load, trailer disconnected.

How the three weighs work

One clean comparison gives you the useful numbers.

The truck-only reading gives the baseline. The WDH-disengaged reading shows the trailer’s natural effect on the truck. The WDH-engaged reading shows how the hitch redistributes load back toward the front axle.

Use the result with the exact ratings for your truck, receiver, hitch, axles, tires and trailer.

CAT Scale FAQ

Why do I need a truck-only weighing?

The truck-only reading gives a baseline for comparing how the trailer changes truck and combination weight.

Why weigh with the WDH disengaged?

The disengaged reading separates the trailer's natural tongue-weight effect from the redistribution created by the hitch.

Should passengers stay in the truck?

Yes. Keep passengers, fuel and cargo consistent across the comparison.

After the scale

Verify the rig, then plan an RV-ready route.

Once your loaded weights make sense, RV LIFE Pro can help with RV-specific routing, campgrounds, stops and navigation for the trip ahead.

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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.