RV Towing Safety Calculator

Ensure your truck and trailer setup is within safe towing limits. Get instant PASS/FAIL results for each critical constraint with detailed safety margins.

Towing Calculator

Truck Specifications

Curb Weight (lbs) Optional

Curb Weight - The weight of your truck when empty (no passengers, cargo, or fuel). This helps calculate more accurate safety margins but is optional for basic calculations.

GVWR (lbs) *

Gross Vehicle Weight Rating - The maximum total weight your truck can safely carry when fully loaded (including passengers, cargo, and fuel)

GCWR (lbs) *

Gross Combined Weight Rating - The maximum total weight of your truck AND trailer combined when fully loaded

Max Tow Rating (lbs) *

Maximum Towing Capacity - The heaviest trailer your truck can safely pull (found in your owner's manual or door sticker)

Payload Capacity (lbs) *

Payload Capacity - The maximum weight you can add to your truck (passengers, cargo, fuel, and tongue weight) - found on the door sticker

Hitch Rating (lbs) *

Hitch Rating - The maximum tongue/pin weight your hitch can safely handle (check your hitch receiver or fifth-wheel hitch)

Passengers & Cargo (lbs) *

Passengers & Cargo Weight - Total weight of people, pets, gear, and accessories you'll have in your truck (not including tongue/pin weight)

Trailer Specifications

Trailer Type

Dry Weight (lbs) *

Dry Weight (UVW) - The weight of your trailer when empty (no cargo, water, or propane) - found on the trailer's weight sticker

GVWR (lbs) *

Trailer GVWR - The maximum total weight your trailer can safely carry when fully loaded (found on the trailer's weight sticker)

Estimated Cargo Weight: 0 lbs

0 lbs0 lbs

Tongue Weight: 12%

10-15%

Tongue Weight Percentage - The percentage of trailer weight that rests on the hitch. This affects stability and payload usage.

10%15%

Expert mode allows 5-30% range

⚠️ ⚠️ Incomplete Data - Some ratings not provided

Some constraints have low safety margins or incomplete data.

Safety Check Results

Constraint	Limit	Your Value	Margin	Status
Payload Capacity Truck payload capacity not provided	N/A	N/A	N/A	UNKNOWN
Tow Rating Truck tow rating not provided	N/A	N/A	N/A	UNKNOWN
Gross Combined Weight Rating (GCWR) Truck GCWR not provided	N/A	N/A	N/A	UNKNOWN
Hitch Rating Hitch rating not provided	N/A	N/A	N/A	UNKNOWN

Calculation Summary

Trailer Calculations

Loaded Trailer Weight:0 lbs

Tongue/Pin Weight:0 lbs

Truck Calculations

Payload Used:0 lbs

Combined Weight:0 lbs

Safety Tips

• Always verify weights with certified scales (CAT Scale, etc.)
• Weight distribution hitches don't increase ratings - they only redistribute weight
• Tongue/pin weight percentages are estimates - actual values vary by loading
• Include all passengers, cargo, and accessories in your calculations
• Consult your owner's manual for specific towing guidelines

⚠️ Important Disclaimer

Results are estimates based on user-entered values and common assumptions about tongue/pin weight percentages. Ratings are set by the manufacturer and cannot be increased by accessories or weight-distribution hitches. Always verify with certified scale measurements (e.g., CAT Scale) and your owner's manual. Use at your own risk.