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Suggestions
Calculators
Air Pressure
Load and inflation tables.
Input |
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|---|---|---|
Output |
Miles/Kilometers
Quickly converts distances between miles and kilometers.
Input |
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|---|---|
Output |
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Offset Backspacing
Calculates the wheel offset and backspacing to ensure proper fitment.
Input |
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|---|---|---|
Output |
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|---|---|
| Please enter Offset or Backspacing |
Hide Chart
| Offset | Width | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -57 | 0.76" | 1.01" | 1.26" | 1.51" | 1.76" | 2.01" | 2.26" | 2.51" | 2.76" | 3.01" | 3.26" | 3.51" | 3.76" | 4.01" | 4.26" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -44 | 1.27" | 1.52" | 1.77" | 2.02" | 2.27" | 2.52" | 2.77" | 3.02" | 3.27" | 3.52" | 3.77" | 4.02" | 4.27" | 4.52" | 4.77" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -38 | 1.50" | 1.75" | 2.00" | 2.25" | 2.50" | 2.75" | 3.00" | 3.25" | 3.50" | 3.75" | 4.00" | 4.25" | 4.50" | 4.75" | 5.00" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -32 | 1.74" | 1.99" | 2.24" | 2.49" | 2.74" | 2.99" | 3.24" | 3.49" | 3.74" | 3.99" | 4.24" | 4.49" | 4.74" | 4.99" | 5.24" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -25 | 2.02" | 2.27" | 2.52" | 2.77" | 3.02" | 3.27" | 3.52" | 3.77" | 4.02" | 4.27" | 4.52" | 4.77" | 5.02" | 5.27" | 5.52" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -19 | 2.25" | 2.50" | 2.75" | 3.00" | 3.25" | 3.50" | 3.75" | 4.00" | 4.25" | 4.50" | 4.75" | 5.00" | 5.25" | 5.50" | 5.75" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -12 | 2.53" | 2.78" | 3.03" | 3.28" | 3.53" | 3.78" | 4.03" | 4.28" | 4.53" | 4.78" | 5.03" | 5.28" | 5.53" | 5.78" | 6.03" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| -6 | 2.76" | 3.01" | 3.26" | 3.51" | 3.76" | 4.01" | 4.26" | 4.51" | 4.76" | 5.01" | 5.26" | 5.51" | 5.76" | 6.01" | 6.26" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0 | 3.00" | 3.25" | 3.50" | 3.75" | 4.00" | 4.25" | 4.50" | 4.75" | 5.00" | 5.25" | 5.50" | 5.75" | 6.00" | 6.25" | 6.50" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6 | 3.24" | 3.49" | 3.74" | 3.99" | 4.24" | 4.49" | 4.74" | 4.99" | 5.24" | 5.49" | 5.74" | 5.99" | 6.24" | 6.49" | 6.74" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 12 | 3.47" | 3.72" | 3.97" | 4.22" | 4.47" | 4.72" | 4.97" | 5.22" | 5.47" | 5.72" | 5.97" | 6.22" | 6.47" | 6.72" | 6.97" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 19 | 3.75" | 4.00" | 4.25" | 4.50" | 4.75" | 5.00" | 5.25" | 5.50" | 5.75" | 6.00" | 6.25" | 6.50" | 6.75" | 7.00" | 7.25" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 32 | 4.26" | 4.51" | 4.76" | 5.01" | 5.26" | 5.51" | 5.76" | 6.01" | 6.26" | 6.51" | 6.76" | 7.01" | 7.26" | 7.51" | 7.76" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 38 | 4.50" | 4.75" | 5.00" | 5.25" | 5.50" | 5.75" | 6.00" | 6.25" | 6.50" | 6.75" | 7.00" | 7.25" | 7.50" | 7.75" | 8.00" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 44 | 4.73" | 4.98" | 5.23" | 5.48" | 5.73" | 5.98" | 6.23" | 6.48" | 6.73" | 6.98" | 7.23" | 7.48" | 7.73" | 7.98" | 8.23" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 51 | 5.01" | 5.26" | 5.51" | 5.76" | 6.01" | 6.26" | 6.51" | 6.76" | 7.01" | 7.26" | 7.51" | 7.76" | 8.01" | 8.26" | 8.51" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 57 | 5.24" | 5.49" | 5.74" | 5.99" | 6.24" | 6.49" | 6.74" | 6.99" | 7.24" | 7.49" | 7.74" | 7.99" | 8.24" | 8.49" | 8.74" | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Proration Calculator
Determines the adjustment percent coverage for tires based on mileage and tread depth.
Input
Output
Speed Rating
Displays tire speed ratings based on rating symbol to ensure safe performance at various speeds.
| Rating Symbol | Speed (KMH) | Speed (MPH) | Rating Symbol | Speed (KMH) | Speed (MPH) |
|---|---|---|---|---|---|
| B | 50 | 31 | P | 150 | 93 |
| C | 60 | 37 | Q | 160 | 99 |
| D | 65 | 40 | R | 170 | 106 |
| E | 70 | 43 | S | 180 | 112 |
| F | 80 | 50 | T | 190 | 118 |
| G | 90 | 56 | U | 200 | 124 |
| J | 100 | 62 | H | 210 | 130 |
| K | 110 | 68 | V | 240 | 149 |
| L | 120 | 75 | W* | 270 | 168 |
| M | 130 | 81 | Y* | 300 | 185 |
| N | 140 | 87 | |||
For tires with a maximum speed capability above 149mph, a ZR MAY appear in the size description.
For tires with a maximum speed capability above 186mph, a ZR MUST appear in the size description.
Staggered Fitment
Assists in determining the differences in height and width for front and rear tire sizes on staggered fitment vehicles.
Input
Old
Front
New
Front
Back
Back
Output
| Front | Old | New | Difference | |||
|---|---|---|---|---|---|---|
| Sidewall Height | Output | Output | Output | |||
| Section Width | Output | Output | Output | |||
| Overall Diameter | Output | Output | Output | |||
| Rear | Old | New | Difference | |||
| Sidewall Height | Output | Output | Output | |||
| Section Width | Output | Output | Output | |||
| Overall Diameter | Output | Output | Output | |||
| Overall Diameter Diff. Between Sets | Old | New | ||||
| Front | Output | Output | ||||
| Rear | Output | Output | ||||
| Difference | Output | Output | ||||
Tire Size (Metric/High Float)
Converts between metric and high flotation tire sizes to ensure compatibility, accurate sizing, and effects on the speedometer
Input
Old Sizes
/
R
New Sizes
/
R
You are
traveling about
traveling about
67
Output
| Totals | Old Tire | New Tire | Difference |
|---|---|---|---|
| Sidewall Height | test | test | test |
| Selection Width | test | test | test |
| Overall Diameter | test | test | test |
| Tire Circumference | test | test | test |
| Rev. / Mile | test | test | test |
Tire to Wheel Width
Recommends compatible tire widths for a given wheel width to maintain safety and performance.
| P-Metric | 70 to 85 | 50 to 65 | 45 | 35 to 40 | 20 to 30 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| TIRE WIDTH | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX |
| P-Metric | 70 to 85 | 50 to 65 | 45 | 35 to 40 | 20 to 30 | |||||
| TIRE WIDTH | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | 165 | 4 | 5.5 | 4.5 | 6 | 5 | 6.5 | 5.5 | 6.5 | 5 | 6.5 |
| 175 | 4.5 | 6 | 4.5 | 6.5 | 5.5 | 6.5 | 5.5 | 7 | 5.5 | 7 |
| 185 | 4.5 | 6.5 | 5 | 7 | 5.5 | 7 | 6 | 7.5 | 6 | 7.5 |
| 195 | 5 | 6.5 | 5 | 7 | 6 | 7.5 | 6.5 | 8 | 6 | 7.5 |
| 205 | 5 | 7 | 5.5 | 7.5 | 6 | 8 | 6.5 | 8.5 | 6.5 | 8 |
| 215 | 5.5 | 7.5 | 5.5 | 8 | 6.5 | 8.5 | 7 | 8.5 | 7 | 8.5 |
| 225 | 5.5 | 8 | 6 | 8 | 7 | 8.5 | 7 | 9 | 7 | 8.5 |
| 235 | 6 | 8 | 6 | 8.5 | 7 | 9 | 7.5 | 9.5 | 7.5 | 9 |
| 245 | 6 | 8.5 | 6.5 | 9 | 7.5 | 9.5 | 8 | 10 | 8 | 9.5 |
| 255 | 6.5 | 9 | 6.5 | 9.5 | 7.5 | 10 | 8 | 10.5 | 8 | 10 |
| 265 | 6.5 | 9 | 7 | 9.5 | 8 | 10 | 8.5 | 10.5 | 8.5 | 10 |
| 275 | 7 | 9.5 | 7.5 | 10 | 8.5 | 10.5 | 9 | 11 | 9 | 10.5 |
| 285 | 7 | 10 | 7.5 | 10.5 | 8.5 | 11 | 9 | 11.5 | 9 | 11 |
| 295 | 7 | 10 | 8 | 11 | 9 | 11.5 | 9.5 | 12 | 9.5 | 11.5 |
| 305 | 7.5 | 10.5 | 8 | 11 | 9 | 11.5 | 10 | 12.5 | 10 | 11.5 |
| 315 | 7.5 | 11 | 8.5 | 11.5 | 9.5 | 12 | 10 | 13 | 10 | 12 |
| 325 | 8 | 11 | 8.5 | 12 | 10 | 12.5 | 10.5 | 13 | 10.5 | 12.5 |
| 335 | 8 | 11.5 | 9 | 12 | 10 | 13 | 11 | 13.5 | 11 | 12.5 |
| 345 | 8.5 | 12 | 9 | 12.5 | 10.5 | 13.5 | 11 | 14 | 11 | 13 |
| 355 | 8.5 | 12 | 9.5 | 13 | 10.5 | 13.5 | 11.5 | 14.5 | 11.5 | 13.5 |
| LT-Metric | 85 to 90 | 70 to 80 | 50 to 65 | 45 | ||||
|---|---|---|---|---|---|---|---|---|
| TIRE WIDTH | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX |
| 165 | 4 | 5.5 | 4 | 5.5 | 4.5 | 6 | 5 | 6.5 |
| 175 | 4.5 | 5.5 | 4.5 | 6 | 5 | 6.5 | 5.5 | 6.5 |
| 185 | 4.5 | 6 | 4.5 | 6.5 | 5 | 7 | 5.5 | 7 |
| 195 | 5 | 6.5 | 5 | 6.5 | 5.5 | 7 | 6 | 7.5 |
| 205 | 5 | 6.5 | 5 | 7 | 6 | 7.5 | 6 | 8 |
| 215 | 5.5 | 7 | 5.5 | 7.5 | 6 | 8 | 6.5 | 8.5 |
| 225 | 5.5 | 7.5 | 5.5 | 8 | 6.5 | 8 | 7 | 8.5 |
| 235 | 6 | 7.5 | 6 | 8 | 6.5 | 8.5 | 7 | 9 |
| 245 | 6 | 8 | 6 | 8.5 | 7 | 9 | 7.5 | 9.5 |
| 255 | 6.5 | 8.5 | 6.5 | 9 | 7 | 9.5 | 7.5 | 10 |
| 265 | 6.5 | 8.5 | 6.5 | 9 | 7.5 | 9.5 | 8 | 10 |
| 275 | 7 | 9 | 7 | 9.5 | 7.5 | 10 | 8.5 | 10.5 |
| 285 | 7 | 9 | 7 | 10 | 8 | 10.5 | 8.5 | 11 |
| 295 | 7 | 9.5 | 7 | 10 | 8 | 11 | 9 | 11.5 |
| 305 | 7.5 | 10 | 7.5 | 10.5 | 8.5 | 11 | 9 | 11.5 |
| 315 | 7.5 | 10 | 7.5 | 11 | 8.5 | 11.5 | 9.5 | 12 |
| 325 | 8 | 10.5 | 8 | 11 | 9 | 12 | 10 | 12.5 |
| 335 | 8 | 11 | 8 | 11.5 | 9.5 | 12 | 10 | 13 |
| 345 | 8.5 | 11 | 8.5 | 12 | 10 | 12.5 | 10.5 | 13.5 |
| 355 | 8.5 | 11.5 | 8.5 | 12 | 10 | 13 | 10.5 | 13.5 |
| LT-HF | 15 | 16 | 17 | 18 | 20 | 22 | 24 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TIRE WIDTH | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX | MIN | MAX |
| 30x9.50 | 6 | 8.5 | 6 | 8.5 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 |
| 31x9.50 | 6 | 8.5 | 6 | 8.5 | 6 | 8.5 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 |
| 31x10.50 | 6.5 | 9.5 | 6.5 | 9.5 | 7 | 10 | 7 | 10 | 7 | 10 | 7 | 10 | 7 | 10 |
| 31x11.50 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 |
| 32x10.50 | 6.5 | 9.5 | 6.5 | 9.5 | 6.5 | 9.5 | 7 | 10 | 7 | 10 | 7 | 10 | 7 | 10 |
| 32x11.50 | 7 | 10.5 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 |
| 32x12.50 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 |
| 33x9.50 | 6 | 8.5 | 6 | 8.5 | 6 | 8.5 | 6 | 8.5 | 6.5 | 9 | 6.5 | 9 | 6.5 | 9 |
| 33x10.50 | 6.5 | 9.5 | 6.5 | 9.5 | 6.5 | 9.5 | 6.5 | 9.5 | 7 | 10 | 7 | 10 | 7 | 10 |
| 33x11.50 | 7 | 10.5 | 7 | 10.5 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 |
| 33x12.50 | 7.5 | 11.5 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 |
| 33x13.50 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 |
| 35x11.50 | 7 | 10.5 | 7 | 10.5 | 7 | 10.5 | 7 | 10.5 | 7.5 | 11 | 7.5 | 11 | 7.5 | 11 |
| 35x12.50 | 7.5 | 11.5 | 7.5 | 11.5 | 7.5 | 11.5 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 |
| 35x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 |
| 35x14.50 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 36x12.50 | 7.5 | 11.5 | 7.5 | 11.5 | 7.5 | 11.5 | 7.5 | 11.5 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 |
| 36x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 |
| 36x14.50 | 9 | 13 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 36x15.50 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 |
| 37x11.50 | 7 | 10.5 | 7 | 10.5 | 7 | 10.5 | 7 | 10.5 | 7 | 10.5 | 7.5 | 11 | 7.5 | 11 |
| 37x12.50 | 7.5 | 11.5 | 7.5 | 11.5 | 7.5 | 11.5 | 7.5 | 11.5 | 8.5 | 12 | 8.5 | 12 | 8.5 | 12 |
| 37x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 | 9 | 13 |
| 37x14.50 | 9 | 13 | 9 | 13 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 38x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 | 9 | 13 |
| 38x14.50 | 9 | 13 | 9 | 13 | 9 | 13 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 38x15.50 | 9.5 | 14 | 9.5 | 14 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 |
| 39x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 |
| 39x14.50 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 39x15.50 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 |
| 40x13.50 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 8.5 | 12.5 | 9 | 13 | 9 | 13 |
| 40x14.50 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 |
| 40x15.50 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 9.5 | 14 | 10.5 | 15 | 10.5 | 15 | 10.5 | 15 |
| 42x14.50 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9 | 13 | 9.5 | 14 | 9.5 | 14 |
| 42x15.00 | 9.5 | 13.5 | 9.5 | 13.5 | 9.5 | 13.5 | 9.5 | 13.5 | 9.5 | 13.5 | 10 | 14.5 | 10 | 14.5 |
| Euro C | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 95 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tire Width | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max |
| 165 | 0 | 0 | 0 | 0 | 5 | 5.5 | 4 | 5 | 4.5 | 5 | 4.5 | 5 | 4 | 5 | 5 | 5.5 | 0 | 0 | 0 | 0 |
| 175 | 0 | 0 | 0 | 0 | 0 | 0 | 4.5 | 5.5 | 5 | 5.5 | 4.5 | 5.5 | 4.5 | 5.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 185 | 0 | 0 | 0 | 0 | 5.5 | 6 | 5.5 | 6 | 5 | 6 | 5 | 6 | 4.5 | 6 | 5.5 | 6 | 0 | 0 | 0 | 0 |
| 195 | 0 | 0 | 0 | 0 | 5 | 6 | 5.5 | 6.5 | 5.5 | 6 | 5 | 6 | 5 | 6 | 0 | 0 | 0 | 0 | 0 | 0 |
| 205 | 0 | 0 | 0 | 0 | 6 | 6.5 | 6 | 6.5 | 5.5 | 6.5 | 5.5 | 6.5 | 5 | 6.5 | 6 | 6.5 | 0 | 0 | 0 | 0 |
| 215 | 0 | 0 | 6.5 | 7 | 6.5 | 7 | 6 | 7 | 6 | 7 | 5.5 | 7 | 5.5 | 7 | 6.5 | 7 | 6.5 | 7 | 0 | 0 |
| 225 | 6 | 7 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 | 6 | 7 | 6 | 7 | 6 | 7 | 6.5 | 7.5 | 6.5 | 7.5 | 0 | 0 |
| 235 | 6 | 7.5 | 7 | 7.5 | 0 | 0 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 | 0 | 0 | 7 | 7.5 | 0 | 0 |
| 245 | 7.5 | 8.5 | 0 | 0 | 0 | 0 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 | 0 | 0 | 0 | 0 | 7.5 | 8.5 |
| 255 | 0 | 0 | 7.5 | 8 | 7.5 | 8.5 | 6.5 | 8 | 7 | 8 | 7 | 8 | 6.5 | 8 | 7.5 | 8.5 | 7.5 | 8.5 | 0 | 0 |
| 265 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 8.5 | 7 | 8.5 | 7 | 8.5 | 7 | 8.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| 285 | 0 | 0 | 0 | 0 | 8.5 | 9.5 | 0 | 0 | 8 | 9 | 8 | 9 | 0 | 0 | 8.5 | 9.5 | 0 | 0 | 0 | 0 |
| 295 | 0 | 0 | 0 | 0 | 0 | 0 | 8.5 | 9.5 | 0 | 0 | 0 | 0 | 8.5 | 9.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| High Load | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tire Width | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max |
| 225 | 7.5 | 8.5 | 7.5 | 8.5 | 7.5 | 8.5 | 7 | 8 | 6.5 | 7.5 | 6.5 | 7.5 | 6 | 7 | 6 | 7 | 6 | 7 |
| 235 | 8 | 9 | 8 | 9 | 8 | 9 | 7.5 | 8.5 | 7 | 8 | 7 | 8 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 |
| 245 | 8 | 9 | 8 | 9 | 8 | 9 | 7.5 | 8.5 | 7 | 8 | 7 | 8 | 6.5 | 7.5 | 6.5 | 7.5 | 6.5 | 7.5 |
| 255 | 8.5 | 9.5 | 8.5 | 9.5 | 8.5 | 9.5 | 8 | 9 | 7.5 | 8.5 | 7.5 | 8.5 | 7 | 8 | 7 | 8 | 7 | 8 |
| 265 | 9 | 10 | 9 | 10 | 9 | 10 | 8.5 | 9.5 | 8 | 9 | 8 | 9 | 7.5 | 8.5 | 7.5 | 8.5 | 7.5 | 8.5 |
| 275 | 9 | 10 | 9 | 10 | 9 | 10 | 8.5 | 9.5 | 8 | 9 | 8 | 9 | 7.5 | 8.5 | 7.5 | 8.5 | 7.5 | 8.5 |
| 285 | 9.5 | 10.5 | 9.5 | 10.5 | 9.5 | 10.5 | 9 | 10 | 8.5 | 9.5 | 8.5 | 9.5 | 8 | 9 | 8 | 9 | 0 | 0 |
| 295 | 10 | 11 | 10 | 11 | 10 | 11 | 9.5 | 10.5 | 9 | 10 | 9 | 10 | 8 | 9 | 0 | 0 | 0 | 0 |
| 305 | 10.5 | 11.5 | 10.5 | 11.5 | 10.5 | 11.5 | 9.5 | 10.5 | 9 | 10 | 9 | 10 | 0 | 0 | 0 | 0 | 0 | 0 |
| 315 | 10.5 | 11.5 | 10.5 | 11.5 | 10.5 | 11.5 | 10 | 11 | 9.5 | 10.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 325 | 11 | 12 | 11 | 12 | 11 | 12 | 10.5 | 11.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 335 | 11.5 | 12.5 | 11.5 | 12.5 | 11.5 | 12.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 345 | 11.5 | 12.5 | 11.5 | 12.5 | 11.5 | 12.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 355 | 12 | 13 | 12 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 365 | 12.5 | 13.5 | 12.5 | 13.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Trailer
Helps select the right trailer tires based on load capacity, size, and towing requirements.
Input
Output
Load Requirement
Gross Axis Weight Rating
Load Requirement Per Tire
Trailer Torque Specs
| 7/16 STUD | 80 ft/lbs |
| 1/2 STUD | 100 ft/lbs |
| 9/16 STUD | 140 ft/lbs |
| 5/8 STUD | 175 ft/lbs |
| 10mm STUD | 50 ft/lbs |
| 12mm STUD | 100 ft/lbs |
| 14mm STUD | 120 ft/lbs |
| 16mm STUD | 180 ft/lbs |
| 20mm STUD | 325 ft/lbs (bud studs - typically square inner and hex outer) |
VIN Lookup
Decodes the 10th digit of a vehicle’s VIN to reveal model year.
Input
Enter 10th digit of VIN
Model Year:
Output
Hide Chart
| 10th Digit | Model Year | 10th Digit | Model Year | 10th Digit | Model Year | 10th Digit | Model Year |
|---|---|---|---|---|---|---|---|
| A | 1980 | O | Not Used | 3 | 2003 | G | 2016 |
| B | 1981 | P | 1993 | 4 | 2004 | H | 2017 |
| C | 1982 | Q | Not Used | 5 | 2005 | I | Not Used |
| D | 1983 | R | 1994 | 6 | 2006 | J | 2018 |
| E | 1984 | S | 1995 | 7 | 2007 | K | 2019 |
| F | 1985 | T | 1996 | 8 | 2008 | L | 2020 |
| G | 1986 | U | Not Used | 9 | 2009 | M | 2021 |
| H | 1987 | V | 1997 | A | 2010 | N | 2022 |
| I | Not Used | W | 1998 | B | 2011 | O | Not Used |
| J | 1988 | X | 1999 | C | 2012 | P | 2023 |
| K | 1989 | Y | 2000 | D | 2013 | Q | Not Used |
| L | 1990 | Z | Not Used | E | 2014 | R | 2024 |
| M | 1991 | N | 2001 | F | 2015 | S | 2025 |
| N | 1992 | 2 | 2002 | ||||
Vintage Tire Sizes
Translates old tire sizing formats into modern equivalents for classic car replacements.
| PRE-1964 | 1965-72 | 80 SERIES METRIC | ALPHA NUMERIC 78 SERIES | SERIES P-METRIC 75 SERIES RADIAL | P-METRIC 70 SERIES RADIAL |
|---|---|---|---|---|---|
| 5.90-13 | 600-13 | 165-13 | A78-13 | P165/75R13 | P175/70R13 |
| 6.40-13 | 650-13 | 175-13 | B78-13 | P175/75R13 | P185/70R13 |
| 7.25-13 | 700-13 | 185-13 | D78-13 | P185/75R13 | P205/70R13 |
| 5.90-14 | 645-14 | 155-14 | B78-14 | P175/75R14 | P185/70R14 |
| 6.50-14 | 695-14 | 175-14 | C78-14 | P185/75R14 | P195/70R14 |
| 7.00-14 | 735-14 | 185-14 | E78-14 | P195/75R14 | P205/70R14 |
| 7.50-14 | 775-14 | 195-14 | F78-14 | P205/75R14 | P215/70R14 |
| 8.00-14 | 825-14 | 205-14 | G78-14 | P215/75R14 | P225/70R14 |
| 8.50-14 | 855-14 | 215-14 | H78-14 | P225/75R14 | P235/70R14 |
| 5.90-15 | 600-15 | 165-15 | A78-15 | P165/75R15 | P175/70R15 |
| 6.50-15 | 685-15 | 175-15 | C78-15 | P175/75R15 | P185/70R15 |
| 6.40-15 | 735-15 | 185-15 | E78-15 | P195/75R15 | P205/70R15 |
| 6.70-15 | 775-15 | 195-15 | F78-15 | P205/75R15 | P215/70R15 |
| 7.10-15 | 825-15 | 205-15 | G78-15 | P215/75R15 | P225/70R15 |
| 7.60-15 | 855-15 | 215-15 | H78-15 | P225/75R15 | P235/70R15 |
| 8.00-15 | 885-15 | 230-15 | J78-15 | P225/75R15 | P235/70R15 |
| 8.20-15 | 900-15 | 235-15 | L78-15 | P235/75R15 | P255/70R15 |
Wheel Offset
Determines how far a wheel will sit in or out from the hub, affecting stance, clearance, and handling.