8 Best Portable Tire Inflators, According to Auto Experts
Never get stranded with low tire pressure.
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A portable tire inflator can save you a trip to the gas station and help you stay prepared when your tire pressure drops unexpectedly. While they're most commonly used to top off car tires, many models can also inflate bike tires, sports balls, air mattresses, and other household essentials, making them a surprisingly useful tool to keep on hand.
Our top picks:
- Best overall: Avid Power Cordless Tire Inflator Air Compressor
- Best value: Slime 12V Digital Tire Inflator
- Easiest to use: AstroAI Handheld Cordless Air Compressor
- Fastest inflation: Milwaukee M18 18V Cordless Tire Inflator
The experts at the Good Housekeeping Institute Tech & Engineering Lab regularly evaluate car accessories and emergency gear, like windshield wipers and dash cams. For this guide, we collaborated with the automotive experts at Car and Driver, who have hands-on experience testing portable tire inflators. Combining their real-world evaluations with our product research and expertise, we selected the Avid Power Cordless Tire Inflator Air Compressor as our best overall pick because of how fast and convenient it is to use at home and on the road.
Best Deal
Pros
- Great value
- Two power options
- Feature rich
- Comfortable grip
Cons
- Not suitable for large truck tires
WHY WE LIKE IT: This portable tire inflator earns our top spot because it's fast, versatile, and easy to use when you need it most. Whether you're topping off a low tire in your driveway or dealing with a pressure warning on the road, you can power it with either the included 20-volt battery or your vehicle's 12-volt outlet, so you're never left searching for a power source.
HOW IT WORKS: Thoughtful features make the experience even easier. A digital display lets you set your target pressure, and the inflator automatically shuts off when it's reached. There's also a built-in LED light for nighttime emergencies and a USB port that can charge your phone or other small devices while you're on the go.
In hands-on evaluations by Car and Driver automotive experts, this model inflated tires faster than many competing options. Testers also appreciated its comfortable rubberized grip and overall ease of use. While it's an excellent choice for most passenger vehicles, the manufacturer does not recommend it for larger truck tires.
| Size | 9.25 x 2.2 x 7.08" |
| Weight | 2.6 lbs |
| Power source | 12V outlet, 20V Lithium-ion battery |
| Inflation time to 30psi | 3:45 min |
Pros
- Easy to use
- Lightweight, portable design
- Includes attachments and adapters for sports balls, bike tires, and other inflatables
Cons
- May feel flimsier than other inflators
WHY WE LIKE IT: If you're looking for an affordable tire inflator that covers the basics, this Slime model is a solid pick. It may not have the premium feel or extra features of pricier options, but it delivers dependable performance where it matters most. In evaluations by the Hearst Autos Gear Team, it inflated tires at speeds comparable to more expensive competitors, so it's a great value for occasional use.
HOW IT WORKS: The inflator plugs into your vehicle's 12-volt outlet and comes with a generous 10-foot power cord, making it easier to reach all four tires. We also appreciate the built-in LED light for low-light situations and the included attachments for inflating sports balls, bike tires, and other inflatables. While it relies on a single power source and has a more lightweight construction than some of our top picks, it's easy to store, simple to operate, and compact enough to keep in your trunk year-round.
| Size | 8.0 x 2.8 x 6.1" |
| Weight | 1.7 lbs |
| Power source | 12V outlet |
| Inflation time to 30 psi | 4:18 min |
Pros
- Two power options
- Lightweight, easy-to-use design
Cons
- Noisy
WHY WE LIKE IT: This cordless tire inflator stands out for its combination of speed, convenience, and portability. Like our top pick, it offers two ways to power up: Use the rechargeable battery for cord-free operation or plug it into your vehicle's 12-volt outlet when you need a backup power source.
HOW IT WORKS: The lightweight design makes it easy to carry and store, while the simple controls take the guesswork out of inflating tires. Just set your desired PSI, attach the hose, and let the inflator do the rest. In testing by the automotive experts at Car and Driver, it delivered some of the fastest inflation times of any model evaluated, helping get drivers back on the road quickly. The tradeoff is that it's louder than some competitors while in use.
We also appreciate the thoughtful extras, including a carrying case for storage and transport, plus a second battery so you can keep going without waiting for a recharge.
| Size | 6.7 x 3.2 x 9.5" |
| Weight | 2.6 lbs |
| Power source | Lithium-ion battery, 12V outlet, 120V AC outlet |
| Inflation time to 30psi | 3:40 min |
Pros
- Super fast inflation times
- Durable and powerful construction
Cons
- Battery and charger sold separately
WHY WE LIKE IT: When time is of the essence, this powerful console-stye air compressor will get you back on the road in no time.
HOW IT WORKS: In Car and Driver's tests, it blew other tire inflators out of the park with super speedy inflation times. However, its efficient performance goes hand-in-hand with the console unit's larger, heavier construction which may be better suited for your garage. It also skips out on a few features like a built-in LED light, and the battery and charger are not included in the price.
| Size | 7.0 x 14.7 x 8.3" |
| Weight | 8.7 lbs |
| Power source | Lithium-ion battery |
| Inflation time to 30psi | 1:04 min |
Pros
- Three power options
- Ideal for indoor and outdoor use
- Several attachments included
Cons
- Battery not included
WHY WE LIKE IT: Owners of Black + Decker’s 20V MAX battery system will be pleased to learn that this multipurpose tire inflator is compatible, and an excellent choice for inflating both tires and items around the house.
HOW IT WORKS: It’s unique as it offers three power sources: a rechargeable Li-Ion battery and the possibility to be plugged into DC 12V sockets as well as wall outlets. According to auto experts at Car and Driver, this unit wasn’t the fastest inflator out there and the battery and charger must be purchased separately, but it includes multiple attachments and is not quite as bulky as other console units tested.
| Size | 11.6 x 7.6 x 8.7" |
| Weight | 4.6 lbs |
| Power source | Battery, 12V outlet, 120V AC outlet |
| Inflation time to 30psi | 4:16 min |
Pros
- Affordable
- Great for indoor and outdoor use
- Quiet when in operation
Cons
- Not as sturdy as other picks
WHY WE LIKE IT: Car and Driver's team of auto experts was impressed by not only the great value of this tire inflator but also by its portability and quietness.
HOW IT WORKS: It includes a digital display, LED light, and three extra adaptors should you need to inflate other household items like bike tires or air mattresses. It has two power options, making it ideal for indoor and roadside use—just plug it into your car's 12-volt outlet or into a wall plug. We also like that it's available in a multitude of colors, though testers point out that it wasn't the sturdiest among the bunch.
| Size | 3.1 x 9.5 x 7.1" |
| Weight | 2.4 lbs |
| Power source | 12V outlet, 120V AC outlet |
| Inflation time to 30psi | 4:28 min |
Pros
- Very quick inflation
- Includes a variety of attachments
Cons
- Only one power source
WHY WE LIKE IT: The Viair 88P is a reliable choice if you need to inflate a tire quickly on the go.
HOW IT WORKS: It's the only air compressor on our list that can run off your car's battery—as long it's juiced, you're in business. Though not a dealbreaker, the Viair features an analog gauge instead of an easy-to-read digital one and it lacks a built-in light. Nevertheless, this portable air compressor is a powerful tool to have and one that comes with a variety of attachments and accessories like a carrying case.
| Size | 9.8 x 3.2 x 5.6" |
| Weight | 5.6 lbs |
| Power source | 12V battery |
| Inflation time to 30ps | 1:37 min |
Pros
- Capable at inflating and deflating
- Intuitive controls
- Water-resistant construction
Cons
- Priced higher than the competition
WHY WE LIKE IT: Spending more on the Stihl KOA 20 cordless tire inflator gets you a versatile device that our experts say should stand the test of time as well as any model. That's thanks to its durable construction and IPX4 weather-resistant rating, meaning it can withstand splashes of water, whether from rainfall or the pool.
HOW IT WORKS: Despite its heavy-duty design, its weight is about average and one tester described the overall ergonomics as “comfortable and well-balanced.” The digital display with push-button controls makes it easy to toggle between units of pressure (PSI, BAR, or KPA, depending on the system you use) and set a precise level of inflation. There's also a deflation mode, nice for taking the air out of inflatables.
The inflator’s smart, intuitive design features onboard storage of the nozzle and hoses on the underside of the housing. Though some of the accessories were a little hard to remove, “at least that means they’re not going to fall out accidentally,” said another tester.
| Size | 11.5 x 8.75 x 4.0" |
| Weight | 3.7 lbs |
| Power source | Lithium-ion battery |
| Inflation time to 30 psi | 3.55 min |
How we test the best portable tire inflators
For this story, the product analysts at the Good Housekeeping Institute Tech & Engineering Lab relied on decades of expertise in testing cars and auto equipment. To find the best portable tire inflators for cars, we partnered with fellow Hearst brand, Car and Driver, whose auto experts have tested portable tire inflators firsthand.
To narrow down the best ones, their team evaluated factors such as each tire inflator’s ease of use, weight, and portability, power (how fast the tire inflator was able to increase a tire’s pressure levels), corded vs. wireless design, and the noise levels while in operation. They also factored in whether the compressor came with any extra features such as a light, digital display, carrying case, or USB port.
What to look for when shopping for a portable tire inflator
✔️ Type: There are two main types of tire inflators: portable and handheld models vs. console units. Handheld devices are ideal to always keep in the car in case of emergencies as these tend to be lightweight and compact, while console units are better suited for the garage as they're heavier and larger but, on the bright side, can inflate almost anything from basketballs to air mattresses and tend to be more feature-rich.
✔️ Power: Consider whether you want a battery-powered tire inflator that can be recharged, or if you prefer one that plugs into your car’s 12-volt outlet (or both!). Some tire inflators are even able to be plugged into wall sockets to make it easier to use on items other than tires. Our experts recommend opting for a portable tire inflator with at least one other alternate source of power.
✔️ Extra features: Some extras to consider when shopping for a tire inflator include a built-in light to help you see in low light conditions, a digital display for pressure readings, and a clamp-style valve attachment which tends to be easier to use than screw-on counterparts. Having a variety of attachments is also handy when inflating items other than tires.
Why trust Good Housekeeping?
Senior Reviews Writer and Analyst Olivia Lipski oversees product testing and covers everything from consumer tech to autos, travel, home, and more. She continues to stay on top of the industry’s latest innovations and helps readers make better buying decisions by testing and reviewing the best gadgets to hit the market. During her time at GH, she's evaluated the best family cars and has reviewed handy car accessories and equipment.
To select the picks featured above, she consulted our partners at Car and Driver and the Hearst Autos Gear Team, who have more than 206 years of automotive publishing experience. Hearst Autos combines the forces, talent, and knowledge of three of the largest, most influential automotive publications in the world: Autoweek, Car and Driver, and Road & Track. The Hearst Autos Gear Team promises to deliver honest evaluations, hands-on tests, and product reviews driven by decades of knowledge and experience.
Testing for this story was conducted by Car and Driver's deputy commerce editor, Jon Langston. An avid motorcyclist and gear collector, his work has appeared in Men’s Journal, Cycle World, The Drive, Rider, Iron & Air, Motorcyclist and more. Collin Morgan, a commerce editor at Hearst Autos, collaborated with Langston to test the best portable tire inflators. He's a former Rust Belt mechanic and gadget enthusiast who presents the best gear for your automotive endeavors.
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