Tongue Weight: The Key To Safe Towing (2024)

If you’re looking at towing a trailered boat this summer, youare going to need to learn a little bit about your tongue weight, because towing a trailer with improper tongue weight could land you in a world of trouble on the roads.

Tongue weight is the downwards force from the tongue of the trailer to your hitch. In other words,it’s the amount of your loaded trailer weight that sits behind the rear axle of your vehicle.

So why does tongue weight matter? I’m happy you asked!

Did you realize that towing a trailer with improper tongue weight can lead to trailer sway, wobbling, fishtailing, and an out of control ride?

Doesn’t sound safe, right?Right!

So how do we avoid what could potentially be a dangerous driving situation?

Well let’s start with the basics!

Proper Tongue Weight

Have you ever been driving down the road only to notice the vehicle in front of you is towing a trailer that seems to be skirting dangerously close to the next lane?

When you see a trailer swaying it is mostly always the result of insufficient tongue weight!

Too little weight on the tongue can lead to swaying from side to side and fishtailing, making it really hard to keep things under control behind the wheel.

On the other hand, if you are putting a little too much weight on the tongue you could weigh down your rear wheels, making steering a difficult task.

Your tongue weight should come in between 10 and 15 percent of the total weight of your loaded trailer, also known as your Gross Trailer Weight (GTW).

So if you are hauling a 2,000 pound trailer that’s loaded up with 2,000 pounds worth of cargo, your tongue weight should be between 400 and 600 pounds.

Check out the example below:

How To Calculate Your Tongue Weight

2,000trailer + 2,000 pounds of cargo = 4000 pounds

4,000 x 10% = 400 or 4,000 x 15% = 600

Thus, the proper tongue weight would be between 400 and 600 pounds!

Pro Tip: You can often tell whether your tongue weight is off by looking at your trailer! Take a step back and ask yourself if your trailer is leaning forward or backwards. If so, your tongue weight might be uneven.

How Do You Calculate The Actual Tongue Weight?

So how do you check your tongue weight to make sure it falls within the target range?

Thankfully, it’s not too complicated!

To figure it out, you can use one of the following methods:

  • Tongue Weight Scale: An ideal investment for heavier boats and trailers, as it will allow you to measure much higher weight.
  • Weigh Safe Ball Mount: A convenient means of weighing your tongue weight, as the ball mound comes with a built in scale!
  • Bathroom Scale: Likely the most affordable means of measuring the tongue weight, however, a typical bathroom scale will not be able to measure the weight of heavier trailers and boats. Also, it might be tricky to set the scale at the same height as the hitch ball on the tow vehicle. That said, you can use cinderblocks to do this.

What to do if You Aren’t Meeting Your Tongue Weight Targets?

So you aren’t within the expected tongue weight…now what?

Not to worry, assuming that you have not exceeded the vehicle tow weight capacity, all you need to do is focus on weight distribution.

By moving some of the trailer’s cargo rearward or forward the tongue weight will either increase or decrease.

Weight distribution allows you to either move weight rearwards to place more weight on the trailer’s axle, or forward to place more weight on the front of the trailer’s axle.

This may take a few attempts, but you should be able to hit your target tongue weight.

Congratulations! You now know how to get to your safe tongue weight! And like with all other things in life, practice makes perfect!

Next, you may want to brush up on your launching knowledge.

Happy Boating

Brought to you by: Legend Boats Pro Staff

Tongue Weight: The Key To Safe Towing (2024)

FAQs

Tongue Weight: The Key To Safe Towing? ›

What Is Proper Tongue Weight? For conventional trailers with ball-mounted hitches, proper tongue weight is roughly 10 to 15 percent of the total loaded trailer weight.

What is the tongue weight for towing? ›

Tongue weight (TW) is the downward force exerted at a vehicle-trailer coupling point when your trailer is hooked up for towing. The tongue weight should be about 10-15% of the gross trailer weight.

How do you calculate safe tongue weight? ›

Start by driving the towing vehicle onto the scale and weighing it without the trailer attached. Then, connect the trailer and weigh the towing vehicle with the trailer attached, but ensure the trailer wheels don't go on the scale. Subtract the first weight from the second.

What does 500 lb tongue weight mean? ›

What does 500 lb. tongue weight mean? Usually, the tongue weight is just a representation of how much you are towing. For example, a 500-pound tongue weight would ideally mean you are hauling a 5,000-pound trailer.

What is the rule of thumb for trailer tongue weight? ›

Tongue weight is exactly what it says: the weight of the trailer tongue on the hitch of the tow vehicle. The rule of thumb is that you want a tongue weight equal to 7 percent to 12 percent of the total weight of the (fully loaded with fuel and gear) boat/motor/trailer combo.

What happens if you have too much tongue weight? ›

If the trailer has too much tongue weight, it can overload the tow vehicle. This can cause a loss of steering and braking control for the tow vehicle. It also puts too much stress and weight on the tow vehicle's rear axle, leading to the axle or suspension failure if not addressed.

How much tongue weight for a 7000 lb trailer? ›

Tongue weight should be around 700 pounds plus. Most Class III hitches are rated for 5,000 to 6,000 pounds convential pulling. Add a weight distribution hitch and you will be fine at 7,000 pounds. Usually the ball has a weight rating stamped into it.

Is 10% tongue weight enough? ›

For instance, if a 2,000-pound conventional trailer is loaded with 1,000 pounds of cargo, the proper tongue weight of the loaded trailer should be between 300 and 450 pounds, or 10-15 percent of the loaded 3,000 pound total.

What is the tongue weight of a 5000 lb trailer? ›

Tongue load should be 10 to 15 percent of the trailer's total weight—if you're towing 5,000 pounds, then the tongue weight would be 500 to 750 pounds.

Should trailer hitch be too high or too low? ›

If trailer hitches are too high or too low, they can cause a vehicle to zigzag or drive unevenly on the highways. These issues can cause accidents.

Can a hitch carry as much tongue weight as it can pull? ›

A quick way to calculate hitch Tongue Weight Capacity is to multiply your vehicle's Gross Towing Capacity (GTWR) by 10% (tongue weight = GTWR x 10%). So, a vehicle and hitch with a 5000 lb towing weight capacity will have a tongue weight capacity of 500 lbs.

Is 600 lb tongue weight good? ›

Your tongue weight should come in between 10 and 15 percent of the total weight of your loaded trailer, also known as your Gross Trailer Weight (GTW). So if you are hauling a 2,000 pound trailer that's loaded up with 2,000 pounds worth of cargo, your tongue weight should be between 400 and 600 pounds.

What percentage of towing capacity is safe? ›

Often, someone will suggest that a vehicle's published tow rating should be 80% or 75% of the published towing capacity to provide a safe towing capacity margin. Some are teaching these rules at various RV safety seminars too.

How to reduce tongue weight on a trailer? ›

If the cargo is loaded near the hitch ball, you'll have a higher tongue weight. However, moving the cargo away from the hitch ball will have less weight on the trailer tongue. That's because when you move the cargo, you're pulling the pressure away or towards the trailer's wheels.

How do I know my truck tongue weight limit? ›

Subtract the axle weight from the total trailer weight to determine your trailer's hitch weight. A general rule of thumb is that 20 to 25% of the total weight of a trailer plus its cargo should be placed on the tongue of the trailer.

Do you subtract tongue weight from trailer weight? ›

If you had a trailer, you also need to subtract the tongue weight from the GVWR. For this same example, if you had a trailer that weighs 2,000 pounds, the tongue weight would be at least 200 pounds.

How much tongue weight can my car handle? ›

A quick way to calculate hitch Tongue Weight Capacity is to multiply your vehicle's Gross Towing Capacity (GTWR) by 10% (tongue weight = GTWR x 10%). So, a vehicle and hitch with a 5000 lb towing weight capacity will have a tongue weight capacity of 500 lbs.

How much weight should be on a tow ball? ›

A caravan with a 2500kg towing weight should have a maximum tow ball of between 7 – 15% of the caravan's weight (preferably closer to 10%). This works out to between 150 and 375 KG.

What is mandatory if the gross trailer weight is 3500? ›

Explanation: If a trailer has a gross trailer weight of 3500 pounds or more, it is typically mandatory that it be equipped with its own braking system.

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