Tire air volume chart
A 205/55R16 car tire holds about 32 liters of air and a 285/70R17 truck tire about 96 liters, so the truck tire takes roughly 3.0 times as long to top up.
Fanttik X8 APEX Tire Inflator Portable Air Compressor, 1 Min Fast Inflation
A mid-range pick from the gear this chart is about. More across the price range below the chart.
Volume estimated from the sidewall size with a torus approximation and shape factor. Free air to add 5 psi is volume x 5 / 14.7. Run your own numbers in the tire inflation time calculator.
| Tire | Diameter (in) | Volume (L) | Air for +5 psi (L) | Air flat to 35 (L) |
|---|---|---|---|---|
| 185/65R15 | 24.5 | 30 | 10 | 71 |
| 195/65R15 | 25.0 | 34 | 11 | 80 |
| 205/55R16 | 24.9 | 32 | 11 | 76 |
| 215/60R16 | 26.2 | 40 | 13 | 94 |
| 215/55R17 | 26.3 | 37 | 13 | 89 |
| 225/45R17 | 25.0 | 32 | 11 | 77 |
| 225/65R17 | 28.5 | 51 | 17 | 121 |
| 235/65R17 | 29.0 | 56 | 19 | 133 |
| 225/60R18 | 28.6 | 48 | 16 | 114 |
| 235/60R18 | 29.1 | 53 | 18 | 126 |
| 245/60R18 | 29.6 | 58 | 20 | 138 |
| 235/55R19 | 29.2 | 50 | 17 | 118 |
| 245/45R19 | 27.7 | 43 | 15 | 102 |
| 255/55R20 | 31.0 | 62 | 21 | 147 |
| 265/65R17 | 30.6 | 74 | 25 | 175 |
| 265/70R17 | 31.6 | 81 | 28 | 193 |
| 245/75R16 | 30.5 | 71 | 24 | 169 |
| 265/70R16 | 30.6 | 78 | 26 | 185 |
| 275/65R18 | 32.1 | 83 | 28 | 199 |
| 275/55R20 | 31.9 | 73 | 25 | 174 |
| 275/60R20 | 33.0 | 82 | 28 | 194 |
| 285/70R17 | 32.7 | 96 | 33 | 228 |
| 285/75R16 | 32.8 | 101 | 34 | 240 |
| 315/70R17 | 34.4 | 121 | 41 | 288 |
Inflators sized for small and large tires
An even spread across the price range. Prices change often.
Fanttik X9 Classic 2-IN-1 Tire Inflator/Blower, 150PSI Cordless Air Pump150 PSI / cordless$39.99Check price on Amazon
Fanttik X10 Pro 35s Fast Tire Inflator, 150PSI Cordless Air Pump, Auto-Off150 PSI / cordless$53.99Check price on Amazon
Frequently asked questions
Where do the numbers in this chart come from?
Volume estimated from the sidewall size with a torus approximation and shape factor. Free air to add 5 psi is volume x 5 / 14.7. They are calculated, not measured on any one product, so real results vary with the specific model, its settings and its condition. The tire inflation time calculator runs the same formula on your own inputs.