Know your numbers before you tow.
TowAtlas turns confusing towing math into simple, practical calculators for truck owners, RVers, trailer owners and anyone planning a tow setup.
What TowAtlas helps you check
- Payload and tongue-weight estimates
- Loaded trailer weight vs. GVWR
- Fifth-wheel / gooseneck pin weight
- CAT scale axle totals
- Tire-size changes and speedometer effect
- Trip fuel cost while towing
Choose your side of TowAtlas
Towing calculators
Start with the number you need. Each calculator is designed to be fast on a phone at the truck, trailer or scale.
Payload Calculator
Estimate payload used by passengers, cargo, hitch hardware and trailer tongue weight.
TrailerLoaded Trailer Weight
Add water, batteries, propane and cargo to estimate loaded trailer weight and GVWR margin.
Fifth wheelPin Weight Calculator
Estimate fifth-wheel or gooseneck pin weight and how much truck payload remains.
ScaleCAT Scale Calculator
Use three weigh tickets to calculate actual trailer weight, tongue weight and weight-distribution axle changes.
TruckTire Size Calculator
Compare tire diameters and estimate the speedometer difference after changing sizes.
TripTowing Fuel Cost
Estimate gallons, trip fuel cost and cost per mile using your towing MPG.
Built for real-world towing decisions
Tow ratings are only part of the picture. Payload, axle ratings, hitch ratings, tire ratings, trailer GVWR and actual loaded weights can all matter. TowAtlas calculators are estimation tools designed to help you organize the numbers before you verify them against the ratings for your exact truck, hitch and trailer.