For Ryobi 18V owners who want a cheap, simple inflator for car and bike tires using batteries they already have.
Ryobi $39.97 Home Depot $39.97A portable tire inflator is a small air compressor for topping up a soft tire, or getting a flat one back to a drivable pressure, without a trip to a gas station. They come in three kinds: cordless inflators with a battery that work anywhere, plug-in inflators that run from the car’s 12 V socket, and heavy-duty compressors that clamp to the battery for large truck, RV and off-road tires.
For a car, almost any inflator here will do the job; the differences are how long it takes, how loud it is and whether it stops by itself at the pressure you set. For big tires, or airing back up after deflating for sand or rocks, airflow and duty cycle matter much more, which is what the heavy-duty compressors are built for.
Top Picks
For truck and Jeep owners who air down off-road and want a fast refill without paying ARB prices. Check that the hose reaches your tires, since its length isn’t listed.
Amazon $178Shop by Type
Cordless
10 rankedBattery-powered inflators that work anywhere, with no cord to the car: for topping up car, bike and ball pressures.
Top rated: Ryobi ONE+ 18V Inflator PCL001B $39.97
12 V plug-in
7 rankedInflators that plug into the car's 12 V socket and run as long as the engine does: cheap and never flat when you need them.
Top rated: CARSUN AC/DC Tire Inflator $34.99
Heavy duty
9 rankedHigh-volume compressors that clamp to the battery: for big truck, RV and off-road tires, and airing back up after the trail.
Top rated: Rough Country RS200A Air Compressor $178
Narrow It Down
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Best Cordless Tire Inflators
- Ryobi ONE+ 18V Inflator PCL001B#1 of 10Full review
For Ryobi 18V owners who want a cheap, simple inflator for car and bike tires using batteries they already have.
Ryobi $39.97 Home Depot $39.97$39.97160-Yes- - Avid Power 20V Cordless Inflator#2 of 10Full review
For drivers on a budget who want a complete cordless kit with a 12 V cord as backup, for car, bike and motorcycle tires.
Amazon $54.98$54.9815035Yes- - Wolfbox HyperFlow19#3 of 10Full review
For car, bike and motorcycle owners who want a tiny cordless pump for routine top-ups. Truck and SUV owners with wide tires need something bigger.
Amazon $49.98$49.98--Yes1 lb - Milwaukee M18 Inflator 2848-20#4 of 10Full review
For M18 owners with trucks or several vehicles who want the fastest cordless fill and don’t mind the price.
Amazon $166.85$166.8515039.9Yes7 lb - AstroAI Cordless Tire Inflator 160PSI#5 of 10Full review
For drivers who want a cheap cordless inflator that never leaves them stuck, because it also runs off the car’s 12 V socket.
Amazon $65.99$65.9916022Yes4.1 lb
Best 12V Tire Inflators
- CARSUN AC/DC Tire Inflator#1 of 7Full review
For drivers who want one cheap pump for the garage and the car. It suits car and bike tires, not trucks.
Amazon $34.99$34.99150-Yes2.1 lb - AstroAI AIRUN H#2 of 7Full review
For car owners who want the cheapest dependable set-and-forget pump to keep in the car. It isn’t built for large tires.
Amazon $30.39$30.3910035Yes2.2 lb - CRAFTSMAN CMXPTXA1202#3 of 7Full review
For car owners who like the CRAFTSMAN name and want a light, set-and-forget pump for top-ups. Faster pumps cost about the same.
Amazon $39.98$39.98150-Yes1.9 lb - EPAuto 12V Digital Tire Inflator#4 of 7Full review
For car owners who want a basic, proven auto-shutoff pump for topping up. Pick something with a published warranty and spec sheet if that matters.
Amazon $35.97$35.97-30Yes- - Slime 40047 Rugged Digital#5 of 7Full review
For car owners who want a cheap set-and-forget pump for topping up tires. Larger tires need a faster compressor.
Amazon $35.98$35.98-26.9Yes-
Best Heavy-Duty Tire Inflators
- Rough Country RS200A Air Compressor#1 of 9Full review
For truck and Jeep owners who air down off-road and want a fast refill without paying ARB prices. Check that the hose reaches your tires, since its length isn’t listed.
Amazon $178$178150160No- - AstroAI T6 Offroad#2 of 9Full review
For truck and Jeep owners who want a big off-road-style compressor and a pressure-reading controller for well under VIAIR or ARB money. Take the headline airflow with a grain of salt.
Amazon $129.99$129.99150-No- - Smittybilt 2781 Air Compressor#3 of 9Full review
For off-roaders who air down and want fast refills on big tires without paying ARB prices. Drivers who only top up car tires should get something smaller.
Smittybilt $229.99$229.99150160No21 lb - ARB CKMTP12 Twin Portable#4 of 9Full review
For serious overlanders with 35 in and larger tires, or groups airing up several vehicles, who want the fastest portable air and can justify the price. Most drivers are better served by a single-motor unit.
Amazon $955$955150174.4No33 lb - VIAIR 300P#5 of 9Full review
For truck, Jeep and SUV owners who air down on weekends and want a proven compressor at a sensible price. Bigger tires or long sessions call for a 400P or 450P.
Amazon $158.06 VIAIR $149.95$149.9515065.1No8.7 lb
How We Rank
Each inflator is ranked against others of the same type, and scored on its price, its airflow, its features (auto shutoff at a preset pressure, how long it can run without a rest, and its maximum pressure) and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price for its type | 35% |
| Airflow | how fast it fills a tire | 30% |
| Features | auto shutoff, duty cycle, maximum pressure | 20% |
| Warranty | warranty length | 15% |
How we rank explains each factor in full.