Decision Lantern

Cars and bikes calculator

Trailer-hitch class selector

Reviewed Skip to the planner

Drivers matching receiver class to tongue weight. The decision this page isolates is narrow on purpose: translate tongue pounds into a hitch class. Weight, class, and fitment have to match the vehicle before a feature list matters.

This page produces an explainable category or size so options can be compared without a product ranking. The calculator does not rank CURT and Thule. It produces an explainable class so CURT Class 3, CURT Class 4, and Thule hitch accessories can be compared as examples of that class.

The working method is: Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class. Planning notes are grounded in SAE International. This page does not quote a price or rank a brand.

How to use this calculator

Drivers matching receiver class to tongue weight. Translate tongue pounds into a hitch class. If you can answer tongue pounds, this page can produce a class you can shop against.

What this page will not do

  1. Enter the planning inputs

    Choose hitch class by recording tongue pounds. Use real measurements or counts, not a rounded marketing number.

  2. Keep optional extras off until they are real

    This tool has no optional add-ons. If a number is uncertain, calculate a range and keep the more conservative class.

  3. Read the planning class

    Calculate class and treat the headline as a class, not a product name. Matching examples below follow class-3 and class-4.

  4. Compare official pages, then verify

    Open the official page for each example in that class. Confirm current specifications, dimensions, and terms. Decision Lantern does not quote a live price or complete an install review.

Planning classes on this page

class-3
Example: CURT Class 3, Thule hitch accessories
class-4
Example: CURT Class 4

Choose hitch class

Planning class

Class-3

Compare options with at least:

  • Compare official product pages in this class
  • Specifications can change and must be verified

Example products for Trailer-hitch class selector

Real products that fit this planning category. Specs come from the manufacturer’s product page. These are examples, not rankings. Product names that go to Amazon are associate links. Decision Lantern may earn a commission at no extra cost to you.

Compare the official examples

The table below is a side-by-side of the official examples on this page. Columns are published facts—maker, planning class, and notes taken from the official page—not scores. CURT Class 3, CURT Class 4, and Thule hitch accessories are included so you can see how classes differ, then open the official page for the current specification.

Published facts for the example products on this page. Not a ranking.
ExampleMakerPlanning classesPublished notesOfficial page
CURT Class 3CURTclass-32-inch; Class IIICURT Class 3 official page
CURT Class 4CURTclass-42-inch; Higher GTWCURT Class 4 official page
Thule hitch accessoriesThuleclass-32-inch receivers; RacksThule hitch accessories official page

Which example fits which class

CURT Class 3

CURT

CURT Class 3 from CURT is an example in the class-3 class. Published notes on the official page include 2-inch and Class III. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

CURT Class 4

CURT

CURT Class 4 from CURT is an example in the class-4 class. Published notes on the official page include 2-inch and Higher GTW. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

Thule hitch accessories

Thule

Thule hitch accessories from Thule is an example in the class-3 class. Published notes on the official page include 2-inch receivers and Racks. Keep it in the shortlist when your result lands in that class, then confirm the current specification before you buy.

What to verify before you buy

How this estimate works

Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class.

Know the limits

  • This page does not quote a price or rank a brand.
  • Manufacturer specifications and program terms can change and must be verified on official pages.
  • The result is a planning category, not a safety, medical, legal, or install guarantee.

Frequently asked questions

How does the trailer-hitch class selector work?

It converts tongue pounds into a planning class using a published rule. Convert the inputs into a published planning class using the method on this page, then compare official product pages that match that class. The headline is a class such as class-3 and class-4, not a vendor ranking.

Is CURT Class 3 better than CURT Class 4?

This page does not rank CURT Class 3, CURT Class 4, and Thule hitch accessories. CURT Class 3 and CURT Class 4 are listed because they are real products with official pages that map to different or overlapping classes. The useful question is which class matches your inputs.

Can I treat the result as a buying recommendation?

This page does not quote a price or rank a brand. Use the class to decide what to read next, then verify fit, terms, and installation requirements on the official page and with a qualified installer when the product needs one.

Do the product links earn Decision Lantern a commission?

Not on the current preview. Links go to official manufacturer or service pages. If compensated links are added later, the disclosure on this page will say so in plain language.

What should I verify after I get a class?

Confirm the current specification, dimensions or plan limits, and any program terms on the official page. Manufacturer specifications and program terms can change and must be verified on official pages. The next editorial review for this page is due 2026-11-14.

Why these 3 examples?

They are real cars and bikes options with an affiliate program on file and an official product page. CURT and Thule appear because each one can represent at least one planning class on this page, not because Decision Lantern tested or endorsed them.

Sources

  1. SAE hitch classes, SAE International. Retrieved .

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