It’s no secret that adding a composting toilet to your campervan or RV will make your tiny home feel more like home. Of course, one huge drawback is that you will have to empty the liquids (pee) container and solids (poop) bucket manually, instead of it magically being sucked away in a tube, like a traditional toilet in a home.

But for some people, it might make it all worth it so you don’t have to hold your #2 until you find a public restroom or have to dig a 6-inch hole in the backcountry. Or in traditional RV toilets where the sewage creates a foul odor in the septic tank.

In this ultimate guide, I will go over what a compost toilet is, who it is good for, and the top 10 best composting toilets on the market today.  

This post may contain affiliate links. Disclosure policy.

What Is A Composting Toilet & How Does A Composting Toilet Work?

First, let’s break down what a composting toilet even is. It is also referred to as a waterless toilet.

A composting toilet is a dry toilet that doesn’t use any water and separates liquids from solids. Because when #1 and #2 are mixed together, sewage is created, which is what particularly smells when going to the bathroom. Traditionally what happens when your waste goes to a septic system in a traditional home.

By separating the two, human waste breaks down via a biological process when mixed with a compost medium (carbon additives) such as sawdust, coconut coir, or peat moss. The process is helped along by mixing the human waste and medium, usually with a hand-crank agitator.

Although the composting process can take anywhere between 3 weeks to a year to fully compost human waste. It depends largely on having the proper conditions. Read more on our post exposing the truth behind composting toilets.

Who Is A Composting Toilet Good For?

A composting toilet is good for anyone looking to go #2 in their campervan, RV, tiny house, homestead, etc without connecting to a sewage line or black tank.

The reality is that composting toilets are easier for men to use. Having a male apparatus simply makes it easier to use the separator successfully.  I don’t think it should prevent women from owning one, but possibly a good tie-breaker between different brands.

If you are interested in a cheaper option, we recommend cassette toilets. Though we only like to use ours for going #1.

Here are The Top 10 Composting Toilets On The Market Today

Nature’s Head Composting Toilet

Most Popular Composting Toilet Option

If you’ve done any research on composting toilets, then you’ve probably heard of the Nature’s Head Composting Toilet. It is one of the most popular composting toilets on the market today.

It does come with a hefty price tag but is known to have excellent customer service and a 5-year warranty.  Nature’s Head is made in the USA, made of all stainless hardware, and easy to empty. 

It also requires electricity to run a 12-volt fan which pulls 1.7 amps in 24 hours. The electric fan helps to eliminate any undesirable odors and helps control moisture.

With the purchase of a Nature’s Head Compositing toilet, you will receive the toilet, mounting brackets, fuse, fuse holder, agitator, handle, inside vent flange, and 5 feet of venting hose with attached ends.

The spider handle will need to be manually cranked every few days to create the humanure combination and to dry out the human waste.

Also, do note that the liquids container only holds 2.2 gallons, so it is rather small and will most likely need to be dumped every few days. Or if used by multiple people, much more frequently. 

The most common complaints about the Nature’s Head Toilet from customers are:

• solids/composting material mixture not staying dry
• separator being harder for women to aim
• solids container is way too heavy for one person to carry
• The liquids tank fills up way too fast

But from the overall consensus of customers, people seem to be very pleased with how the Nature’s Head Composting Toilet works and find it to be worth the hefty price tag for the comfort of being able to go #2 in your tiny home. I personally think this is the best option if you are looking for a composting toilet that is easy to use and helps mask any weird odors that arise. 

Dimensions: 22 x 20.5 x 21.7 inches

Weight: 28 lbs

Warranty: 5-year warranty

Check Price: Amazon.com | Walmart.com

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Sun-Mar GTG Composting Toilet

Best Budget-Friendly Composting Toilet Option

The Sun-Mar GTG Composting Toilet is the most budget-friendly composting toilet on the market today. It is also one of the more compact options, so if you are looking for a smaller toilet, this is your best option. 

The liquids container is 1.85 gallons, which is pretty small. Therefore, you would need to empty it after just a couple of uses. 

The toilet comes with a 0.6 Watt, 12 Volt DC fan for dealing with odor and moisture control. This specific model doesn’t come with a handle to mix the solid waste and composting material. This is generally where I think the price difference comes from compared to the other best composting toilets in this guide. 

Customers have complained about the separator not being good enough, where liquids often get into the solids container (which basically defeats the whole purpose). They have also complained about the smell because there is no handle to mix the solids with the composting material, so it doesn’t break down as fast. And that the quality vs price point doesn’t align well. 

Overall, if you are looking for a less expensive, compact toilet for your off-grid tiny home, this is a decent option. I believe this option especially comes with a learning curve to make sure it is used properly and there are no liquids mixing with the solids. 

Sun Mar does have some other models,  but they are much more expensive. And when compared to other best composting toilets on the market today, you have other great options that are less expensive. 

Dimensions: 24 x 15.75 x 19.8 inches

Weight: 29.5 lbs

Warranty: 5-year warranty for the tank, 90 days for accessory parts, and 3 years for all other components of the toilet.

Check Price: Amazon.com | HomeDepot.com | Walmart.com

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C-Head Composting Toilet

Best Non-electric Composting Toilet

The C-Head Composting Toilet is another great option if you are looking for a budget-friendly compact toilet. They are hand-crafted and made in the USA.

It also can be used without a 12-volt fan unlike most other composting toilet models. But without a fan, the company suggests to dispose of the solid waste container weekly. Which in my opinion adds a lot of extra hassle to your vanlife chores.

There are 4 urine management systems. The most budget-friendly option is a 1-gallon jug which is one of the smallest on the market. It will need to be emptied almost daily.

For an additional $80, you can get an external urine diverter or p-tank. The external urine diverter diverts urine out of the toilet into a larger outside container or drain field. The p-tank is just a tank that is designed for off-roaders who might be worried about spillage from the commercial gallon jug. 

And for $120 you can get a bottom exit kit. This is basically for customers who are looking to replace their current toilet in a home with a C-Head model to a holding tank or drain line. 

Included in the package from C-head is the toilet, seat, lid, a gallon liquid container, and a 5-gallon waste container (which comes with a crank handle). 

The toilet doesn’t come with a latch kit. Therefore, you will have to pay an additional $40 if you want to include the rubber latch tie-down kit. Or simply find a way to attach it yourself.

They also sell two different versions: Corner Model & Shorty Model 

This product does come at a price reduction compared to other best composting toilets on the market today, but with having to empty the solids container much more often and not really having a long-term warranty, makes this composting toilet much more of a hassle and a bit more of a risk.

Dimensions: 16 x 20 x 36 inches

Weight: N/A

Warranty: 30-day return warranty (for unused toilets) but no warranty for faulty equipment over time.

(I believe C-Head has since gone out of business as of 2023) So you might only be able to find one second hand.

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Air Head Composting Toilet

Most Trusted In The Marine Community

The Air Head Composting toilet is made in the USA and is comparable to the Nature’s Head Composting Toilet. It has made a solid name for itself in the marine community, but it is also a great option for campervans, RV’s, tiny homes, etc.

But it is the most expensive model in this guide, and reviews are similar to the Natures Head which makes the $70+ price increase, plus shipping a less desirable option.

The one positive is the liquids container can be removed without having to open the solids container like you have to with the Nature’s Head. 

You get many different options when choosing your Air-Head Composting toilet. The liquids container comes in 2 sizes: 1 gallon or 2 gallons. And in my personal opinion, you will always want to have a bigger liquids container, because they fill up fast. 

You also get to choose between two different seats such as household (larger/more comfortable) or marine (more compact). Also, which side you want the composting handle to be placed on, whether you want a right angle vent hose or straight vent hose for the fan attachment and what shape you want the solids container to have (flat back or hull shape).

Included in the package from Air Head is the toilet, solids tank lid, electric fan, fan housing, detachable crank handle, floor mounting brackets, mounting hardware, hose 5′ length, hose connectors, liquid bottle cap, and the bowl liners. 

Dimensions: 22 x 19 x 16 inches

Weight: 29 lbs

Warranty: 5-year warranty

Check Price: Amazon.com

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Kildwick Easyloo Composting Toilet

Most Simplistic & Compact Composting Toilet

Kildwick is a German company that makes a very simple and compact composting toilet. I love this design because it is made from sustainable materials and minimizes the use of plastic. The toilet is square-shaped and made out of birch plywood and the toilet seat/lid are made of bamboo. It is recommended to oil or varnish the birch plywood.

The toilet comes with a 5 Volt fan, 9.5 L (2.5 gallons) canister for liquids, and a 16 L (4.22 gallons) container for solids.

But it doesn’t come with a turn handle to mix the solids with the medium composting material which means the odor can be a problem if solids aren’t disposed of more often. 

They also do carry non-electric, budget-friendly options: Kildwick Camping Toilet Miniloo and Kildwich Easyloo w/o 5V fan.

Overall, I think the Kildwick is a great budget-friendly and very simplistic design. Plus it’s one of the most compact versions of a composting toilet. But the warranty is only 1 year which makes it more of a risk compared to some of these other best composting toilets on the market today.

Dimensions: 17.51 x 16.61 x 18.7 inches

Weight: 33 lbs

Warranty: 1-year warranty

Check Price: Kildwick.com

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Trelino® Evo 

Compact & Lightweight Composting Toilet

Telino is a new composting toilet company on the scene. These compost toilets are manufactured & engineered in Germany.

Trelino offers two different series options: Evo & the Origin Series. The Origin Series was Trelino’s first product with durability and compactness in mind. Then the Evo Series was launched in 2022 to be more lightweight, good-looking, easy to clean, and comfortable than the original model. 

There are 3 different sizes of toilets: Small, Medium, & Large. Of course, the small is the most compact and lightweight. With the large holding much more waste and a higher seat most similar to a traditional toilet. 

A fan is not needed for the smaller models. For the medium and large models, adding a fan is optional. They do not sell a fan as an accessory. Therefore, you will need to outsource a fan. 

Dimensions: 15.4 x 13 x 11.7 inches

Weight: 8.6 lbs

Warranty: 1-year warranty

Check Price: MyTrelino

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Separett Villa

Best for off-grid home living, rather than #vanlife 

The Separett Villa is a composting toilet model that is very similar to a traditional toilet. It’s a popular option for off-grid homes with a large waste-holding bin. 

Traditionally, the waste only needs to be emptied every 4-6 weeks (for an average household). Therefore, a small van that maybe has 1-2 people living in it, can sometimes go even longer. Simply line the waste bucket with a composting bag and you can dispose of the waste or add to your compost pile.

There is a 12V or 230V fan that works with drying out the waste. 

The urine diverter needs to be set up to go into a black water container. This is where the Separett Villa becomes a challenge for installation in a camper van or RV. You can add your own container for #1 to go into, or if you live in a van or RV that has a black water tank, you can route it to the black water tank. 

Tip: Check out the videos section on Amazon and see what other vanlifers or RV’ers have done with this toilet.

Dimensions: 26.5 x 18 x 21.2 inches

Weight: 41.9 lbs

Warranty: 5-year warranty

Check Price: Amazon

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BOXIO Portable Toilet

Cheapest & Most Lightweight Composting Toilet on the Market

The Boxio portable toilet is one of the cheapest and most lightweight composting toilets on the market. Its design is compact, lightweight, and easy to use.

This toilet is made in Germany from recycled plastic, making it one of the most eco-friendly toilets on the market too!

It works similarly to other composting toilets. There is a waste tank that can be lined with a bag for solids, and a urine separator in the front. Due to its compact size, it can hold about 8-10 uses. 

They also sell the Boxio Toilet Up as a separate accessory. It can stack under the Boxio Portable Toilet to make it taller and hold the product needed for the compost. 

Dimensions: 15.7 x 11.8 x 11 inches

Weight: 6.2 lbs

Warranty: N/A

Check Price: Amazon

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Thinktank Composting Toilet

Most Durable Composting Toilet

Another composting toilet similar to a traditional toilet is the Thinktank Composting Toilet. Many people choose this toilet when living in an off-grid home. 

It is one of the most expensive composting toilets on the market, but it is durable and made of high-quality materials. Making it last for much wear and tear of use on the road. 

Its weight capacity is suited for large people over 350 lbs. Plus Thinktank has the best warranty in the industry with 6 years of trust.

The Thinktank Composting Toilet comes with a patented trap door design. Which allows men to pee while standing up (which is not common with other composting toilet options). The door traps any urine, virtually making it impossible to get any liquid waste into the solid compartment.

Plus no peat moss or product is needed with the Thinktank composting toilet. The trap door with the use of fans mitigates smells and dries the waste without needing a product.

Electricity is needed to run the fan to dry out waste and mitigate the smell. But the holding tank is large and will not need to be emptied often. You will need to add a liquids container or route piping to the black holding tank in your van or RV.

Dimensions: 23.23 x 18 x 20.67 inches

Weight: 39 lbs

Warranty: 6-year warranty

Check Price: Amazon

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OGO™ Compost Toilet

Newest Composting Toilet on the Market

A newer composting toilet on the market is the OGO™ Compost Toilet. All of their products are manufactured and assembled in Ohio, USA.

It comes with an Electric Agitator and a trap door mechanism that makes it easy to separate your liquids from your solids.

The liquid holding tank is a 2.4-gallon urine bottle, with a solids bin holding about 25-30 uses. Plus it comes with a urine level sensor.

Its compact modern design fits into small spaces making it a great portable composting toilet.

Dimensions: 16 x 15 x 18.5 inches

Weight: 28 lbs

Warranty: 5-year warranty

Check Price: Amazon

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What Toilet Paper Should You Use With A Composting Toilet?

Now that you found your ideal composting toilet, what toilet paper should you use? If you plan to put your toilet paper in with your poop, you should find biodegradable toilet paper. Such as Scott’s RV Biodegradable toilet paper. This will help the tissue break down with the poop breakdown. 

A second option is to just through your toilet paper away in a separate waste can. 

Where To Dispose of Composting Waste?

This part can be tricky. Many vanlifers and RVers that live fully off-grid and don’t own a home with their own compost bin will need to dispose of their waste differently.

You can dispose of human waste with waste management. But do look up the local regulations for the area.

Keep in mind that composting necessitates both oxygen and heat for the ongoing decomposition process. If this garbage bag finds itself in a colder environment, this could hinder or entirely terminate the microbes’ activity within the mixture.

Considering oxygen, my initial concern revolved around whether trash bags or compostable bags can permit the passage of oxygen (which they cannot). Nonetheless, this concern becomes inconsequential due to the fact that landfills operate under anaerobic conditions, meaning devoid of oxygen.

Landfills are tightly compacted and controlled in a manner that almost entirely eliminates oxygen. Consequently, while your waste will eventually degrade within a landfill, it won’t occur through the rapid, oxygen-rich, environmentally friendly process it originally embarked upon. Instead, the breakdown will transpire anaerobically over centuries, generating methane (a greenhouse gas that’s 30 times more potent than CO2).

Therefore, the best plan of action is to try and add it to a composting pile.

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Takeaway | Top 10 Best Composting Toilets On The Market Today

In conclusion, these are some pretty great options when it comes to the best composting toilets on the market today. There are pros and cons to each individual toilet.  Most come with a pretty hefty price tag, but overall I think you will be happy with your choice to upgrade to a composting toilet. Hopefully, this guide helps you decide which of these top 5 best composting toilets on the market today is best for you.