ElpiAuto33X10.50R15 in metric
A 33X10.50R15 is 33.0″ (838 mm) tall and 10.50″ (267 mm) wide on a 15″ wheel. Converted directly it reads 265/85R15; the nearest standard metric size is 265/85R15.
Your tire size
e.g. 235/75R15, 33X12.50R15, or 225/45R17 91V
Metric equivalents of 33X10.50R15
No standard metric size lands exactly on 33X10.50R15. The best compromise is 265/85R15 (−0.8% height, −2 mm width); the list is ranked by height and width together, all on a 15″ wheel within ±3%.
| Size | Diameter | Height vs 33X10.50R15 | Width vs 33X10.50R15 |
|---|---|---|---|
| 265/85R15 | 32.7″ · 832 mm | −0.8% | −2 mm |
| 285/80R15 | 33.0″ · 837 mm | −0.1% | +18 mm |
| 275/85R15 | 33.4″ · 849 mm | +1.2% | +8 mm |
| 275/80R15 | 32.3″ · 821 mm | −2.1% | +8 mm |
| 305/75R15 | 33.0″ · 838 mm | +0.0% | +38 mm |
33X10.50R15 dimensions
Computed from the size code; moulded tires vary by brand by roughly 1–3%.
| Dimension | Inches | Millimetres |
|---|---|---|
| Overall diameter | 33.0″ | 838 |
| Section width | 10.50″ | 267 |
| Sidewall height | 9.00″ | 229 |
| Circumference | 103.7″ | 2633 |
| Revolutions per mile | 611 | — |
| Revolutions per km | — | 380 |
The same height on other wheels
If you are changing wheel diameter but want to keep a 33.0″ overall height, these metric sizes come closest (within 2%).
Wheel width and neighbouring sizes
A 267 mm-wide tire mounts on 7.5–10.0″ wide wheels (the usual approved range; the middle is ideal).
One step down is 32X11.50R15: −3.0% in diameter. With a speedometer calibrated for 33X10.50R15, an indicated 60 mph would be 58.2 mph on 32X11.50R15.
One step up is 35X12.50R15: +6.1% in diameter. With a speedometer calibrated for 33X10.50R15, an indicated 60 mph would be 63.6 mph on 35X12.50R15.
Figures are geometric: overall diameter = wheel + 2 × sidewall, 25.4 mm per inch. Check the tire maker's data sheet for the exact moulded size before buying.