185/70R14 dimensions
| Measure | Inches | Millimetres |
|---|---|---|
| Overall height | 24.20 in | 615 mm |
| Section width | 7.28 in | 185 mm |
| Sidewall height | 5.10 in | 129.5 mm |
| Wheel diameter | 14 in | 356 mm |
| Circumference | 76.0 in | 1,931 mm |
| Revolutions per mile | 833.5 |
The math
| Step | Math | Result |
|---|---|---|
| Sidewall | 185 × 70% = 129.5 mm ÷ 25.4 | 5.10 in |
| Overall height | 14 + 2 × 5.10 | 24.20 in |
| Width | 185 mm ÷ 25.4 | 7.28 in |
| Circumference | π × 24.20 | 76.0 in |
| Revs per mile | 63,360 ÷ 76.0 | 833.5 |
With a 5.1 in sidewall this is a medium sidewall: a balance of cushion and response. Real tires vary by brand and model, and the loaded radius under the vehicle is a bit smaller than this unloaded figure.
One step either way on a 14 in wheel
Each row changes one thing and shows the height change against 185/70R14, plus what 60 mph on the speedometer would really be if you swapped to that size.
| Change | Size | Height | Height change | 60 mph shows as | Verdict |
|---|---|---|---|---|---|
| Wider | 195/70R14 (compare) | 24.7 in | +2.3% | 61.4 mph | Close match |
| Narrower | 175/70R14 (compare) | 23.6 in | -2.3% | 58.6 mph | Close match |
| Taller sidewall | 185/75R14 (compare) | 24.9 in | +3.0% | 61.8 mph | Check clearance |
| Shorter sidewall | 185/65R14 (compare) | 23.5 in | -3.0% | 58.2 mph | Check clearance |
| Wider, shorter sidewall | 195/65R14 (compare) | 24.0 in | -0.9% | 59.5 mph | Close match |
| Narrower, taller sidewall | 175/75R14 (compare) | 24.3 in | +0.6% | 60.3 mph | Close match |
Calculated sizes within ±3% on other wheels
Plus and minus sizes that keep the overall height within about 3% (a rule of thumb from Discount Tire and 1010tires), widths within 30 mm. Calculated, not a list of tires on sale: check that a tire exists in that size.
13 in wheels (one wheel size smaller)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 205/70R13 (compare) | 24.3 in | +0.4% | +20 mm |
| 165/85R13 (compare) | 24.0 in | -0.6% | -20 mm |
| 175/80R13 (compare) | 24.0 in | -0.7% | -10 mm |
| 215/65R13 (compare) | 24.0 in | -0.8% | +30 mm |
15 in wheels (one wheel size larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 195/60R15 (compare) | 24.2 in | +0.1% | +10 mm |
| 155/75R15 (compare) | 24.2 in | -0.2% | -30 mm |
| 165/70R15 (compare) | 24.1 in | -0.4% | -20 mm |
| 215/55R15 (compare) | 24.3 in | +0.5% | +30 mm |
16 in wheels (two wheel sizes larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 175/60R16 (compare) | 24.3 in | +0.3% | -10 mm |
| 205/50R16 (compare) | 24.1 in | -0.5% | +20 mm |
| 185/55R16 (compare) | 24.0 in | -0.8% | +0 mm |
| 165/65R16 (compare) | 24.4 in | +1.0% | -20 mm |
Try it with your numbers
Compare 185/70R14 with another size · Convert to metric or find a 33 in size · Sizes that fit my wheel
Calculated from the size alone. Real tires vary a little by brand and model, and the loaded radius is a bit smaller. Confirm the wheel width range, clearance, load index and speed rating for your vehicle. See how to read a tire size, the load index chart and the speed rating chart.
Browse: all sizes in inches · 185/65R14 · 195/60R14.