Properly selected tires improve safety, enhance traction, and reduce fuel consumption. Below you’ll find a concise overview and a table of agricultural tire equivalents to help you choose the right sizes for tractors and other farm machinery.
Table of contents:
1. How to use the table
2. Agricultural tire chart
3. Size discrepancies not listed in the table
How to use the table
Our agricultural tire chart is divided into columns showing inch-based, metric, and narrow sizes used in row-crop applications. Find your current size and check the available equivalents in other standards.
Agricultural tire chart
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| Inch tires | Metric tires, 80/85 profile | Metric tires, 70 profile | Metric tires, 65 profile | Metric tires, 60 profile | Narrow metric tires (row-crop) | Narrow inch tires (row-crop) |
|---|---|---|---|---|---|---|
| 6.00-16 | – | 240/70R16 | 260/65R16 | – | – | – |
| 6.50-16 | – | 260/70R16 | 280/65R16 | – | – | – |
| 9.0/75-16 | – | 280/70R16 | – | – | – | – |
| 7.50-16 | 250/80R16 | 280/70R16 | 300/65R16, 320/65R16 | – | – | – |
| 7.50-18 | 250/80R18 | 280/70R18 | 300/65R18, 320/65R18 | – | – | – |
| 10.50/80-18 | – | 300/70R18 | 340/65R18 | – | – | – |
| 7.50-20 | – | 280/70R20 | – | – | – | – |
| 9.50-20 | 260/80R20 | 300/70R20 | 340/65R20 | – | – | – |
| 11.2-20 | 280/85R20 | 320/70R20 | – | – | – | – |
| 12.4-20 | 320/85R20, 340/85R20 | 360/70R20 | 420/65R20 | – | – | – |
| 9.5-24 | 250/85R24, 240/85R24 | 300/70R24 | – | – | – | – |
| 13.6-20 | – | 380/70R20 | 440/65R20 | – | – | – |
| 11.2-24 | 280/85R24 | 320/70R24 | – | – | – | – |
| 12.4R24 | 320/85R24 | 360/70R24 | 420/65R24 | – | 210/95R32 | 8.3R32 |
| 13.6R24 | 340/85R24 | 380/70R24 | 440/65R24 | – | 210/95R32 | 8.3R32 |
| 14.9R24 | 380/85R24 | 420/70R24 | 480/65R24 | – | 210/95R32 | 8.3R32 |
| – | – | – | – | – | 230/95R32 | 9.5R32 |
| 16.9R24 | 420/85R24 | 480/70R24 | 540/65R24 | – | – | – |
| – | – | – | – | – | 270/95R32 | 11.2R32 |
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| – | – | – | – | – | 210/95R36 | 8.3R36 |
| 14.9R26 | – | 380/70R28 | 540/65R24 | – | 270/95R32 | 11.2R32 |
| – | – | – | – | – | 210/95R36 | 8.3R36 |
| 16.9R26 | – | 480/70R26 | 540/65R26 | – | 270/95R32 | 11.2R32 |
| – | – | – | – | – | 210/95R36 | 8.3R36 |
| – | – | – | – | – | 180/95R40 | 7.2R40 |
| – | – | – | – | – | 230/95R36 | 9.5R36 |
| 18.4R26 | – | – | 540/65R28 | – | 270/95R36 | 11.2R36 |
| – | – | 520/70R26 | – | – | 270/95R38 | 11.2R38 |
| – | – | 480/70R28 | – | – | 230/95R38 | 9.5R38 |
| – | – | – | – | – | 230/95R40 | 9.5R40 |
| 9.5-28 | 250/85R28, 230/95R28 | 360/70R24 | 340/65R28 | – | – | – |
| – | – | – | – | – | – | – |
| 12.4R28 | 320/85R28 | 360/70R28 | 420/65R28 | – | 230/95R32 | 9.5R32 |
| – | – | – | – | – | 270/95R32 | 11.2R32 |
| 13.6R28 | 340/85R28 | 380/70R28 | 440/65R28 | 480/60R28 | 230/95R32 | 9.5R32 |
| – | – | – | – | – | 270/95R32 | 11.2R32 |
| – | – | – | – | – | 210/95R36 | 8.3R36 |
| 14.9R28 | 380/85R28 | 420/70R28 | 480/65R28 | 520/60R28 | 270/95R32 | 11.2R32 |
| – | – | – | – | – | 230/95R36 | 9.5R36 |
| – | – | 480/70R26 | 540/65R26 | – | 180/95R40 | 7.2R40 |
| 16.9R28 | 420/85R28 | 480/70R28 | 540/65R28 | 600/60R28 | 270/95R36 | 11.2R36 |
| – | – | – | – | – | 230/95R38 | 9.5R38 |
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| – | – | – | – | – | 270/95R38 | 11.2R38 |
| 14.9R30 | 380/85R30 | 420/70R30 | 540/65R28 | – | 270/95R36 | 11.2R36 |
| – | – | – | – | – | 230/95R38 | 9.5R38 |
| – | – | – | – | – | 270/95R38 | 11.2R38 |
| 16.9R30 | 420/85R30 | 480/70R30 | 540/65R30 | 600/60R30 | 270/95R36 | 11.2R36 |
| – | – | – | – | – | 270/95R38 | 11.2R38 |
| – | – | – | – | – | 230/95R40 | 9.5R40 |
| 12.4R32 | 320/85R32 | – | – | – | 270/95R32 | 11.2R32 |
| – | – | – | – | – | 210/95R36 | 8.3R36 |
| – | – | – | – | – | 230/95R36 | 9.5R36 |
| – | – | – | – | – | 180/95R40 | 7.2R40 |
| 16.9R34 | 420/85R34 | 480/70R34 | 540/65R34 | 600/60R34 | 210/95R44 | 8.3R44 |
| – | – | – | – | – | 230/95R44 | 9.5R44 |
| 18.4R34 | 460/85R34 | 520/70R34 | 600/65R34 | 650/60R34 | 230/95R44 | 9.5R44 |
| – | – | – | – | – | 270/95R44 | 11.2R44 |
| – | – | – | – | – | 230/95R48 | 9.5R48 |
| 13.6R36 | 340/85R36 | 600/70R28 | 600/65R30 | – | 270/95R38 | 11.2R38 |
| – | – | – | – | – | 230/95R40 | 9.5R40 |
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| – | – | – | – | – | 210/95R44 | 8.3R44 |
| 13.6R38 | 340/85R38 | 500/70R34 | 540/65R34 | – | 210/95R44 | 8.3R44 |
| – | – | – | – | – | 230/95R44 | 9.5R44 |
| 14.9R38 | 380/85R38 | 540/70R34 | 600/65R34 | – | 270/95R44 | 11.2R44 |
| 15.5R38 | – | – | – | – | 210/95R44 | 8.3R44 |
| – | – | – | – | – | 230/95R44 | 9.5R44 |
| 16.9R38 | 420/85R38 | 480/70R38 | 540/65R38 | 600/60R38 | 270/95R44 | 11.2R44 |
| – | – | – | – | – | 230/95R48 | 9.5R48 |
| 18.4R38 | 460/85R38 | 520/70R38 | 600/65R38 | – | 300/95R46 | 12.4R46 |
| – | – | 680/70R32 | – | – | 270/95R48 | 11.2R48 |
| 20.8R38 | 520/85R38 | – | – | 710/60R38 | 300/95R46 | 12.4R46 |
| – | – | 580/70R38 | 650/65R38 | – | 270/95R48 | 11.2R48 |
| 18.4R42 | 480/80R42 | – | 600/65R42 | – | – | – |
| 20.8R42 | 520/85R42 | 580/70R42 | 650/65R42 | – | – | – |
| – | – | 620/70R42 | – | – | – | – |
| – | – | 650/75R38 | – | – | – | – |
| – | – | 710/70R38 | – | – | – | – |
| 18.4R46 | 480/80R46 | – | – | – | – | – |
| 20.8R46 | 520/85R46 | 710/70R42 | 650/65R46 | 900/60R38 | 380/90R50 | – |
| – | 480/80R50 | 800/70R38 | 650/85R38 | – | – | – |
| – | 710/85R38 | 710/75R42 | 900/60R42 | – | 380/90R54 | 14.9R54 |
Size discrepancies not listed in the table
Even if the agricultural tire conversion chart shows compatibility, it’s worth precisely comparing the outer diameter, width, and rolling circumference for the selected sizes. Use the tractor tire size calculator to find exact specifications, including speed difference – which is especially important for 4×4 drive machines.