255/55R19 vs 255/70R16 tire size comparison
255/70R16 is 0.1 in (0.04%) taller than 255/55R19, with the same section width. They fit different wheels: 255/55R19 a 19-inch wheel and 255/70R16 a 16-inch wheel.
255/55R19 and 255/70R16 side by side
| Measurement | 255/55R19 | 255/70R16 | Difference | Difference % |
|---|---|---|---|---|
| Section width | 10.0 in (255 mm) | 10.0 in (255 mm) | 0.0 in (0 mm) | 0.00% |
| Sidewall height | 5.5 in (140 mm) | 7.0 in (179 mm) | +1.5 in (+39 mm) | +27.27% |
| Wheel (rim) diameter | 19.0 in (483 mm) | 16.0 in (406 mm) | -3.0 in (-77 mm) | -15.79% |
| Overall diameter | 30.0 in (763 mm) | 30.1 in (763 mm) | +0.1 in (0 mm) | +0.04% |
| Circumference | 94.4 in (2397 mm) | 94.4 in (2398 mm) | 0.0 in (+1 mm) | +0.04% |
| Revolutions per mile | 671 | 671 | 0 | -0.04% |
Differences are 255/70R16 minus 255/55R19; percentages are relative to 255/55R19. These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.
The overall diameter differs by 0.04%, which is within the common 3% rule of thumb.
The rule of thumb keeps a replacement size within about 3% of the original overall diameter. It covers diameter only. It is not a fit, load or safety check, because width, wheel diameter, load capacity and clearance matter too. Confirm any size change with your vehicle's owner's manual or a tire professional.
Speedometer difference
When the speedometer reads 60 mph on a vehicle built for 255/55R19, the actual speed on 255/70R16 is about 60.0 mph. When it reads 60 mph on a vehicle built for 255/70R16, the actual speed on 255/55R19 is about 60.0 mph. These figures assume the speedometer is accurate on the original size and use nominal dimensions, so treat them as estimates.
| Speedometer reads | Actual on 255/70R16 (built for 255/55R19) | Actual on 255/55R19 (built for 255/70R16) |
|---|---|---|
| 20 mph | 20.0 mph | 20.0 mph |
| 30 mph | 30.0 mph | 30.0 mph |
| 40 mph | 40.0 mph | 40.0 mph |
| 50 mph | 50.0 mph | 50.0 mph |
| 60 mph | 60.0 mph | 60.0 mph |
| 70 mph | 70.0 mph | 70.0 mph |
| 80 mph | 80.0 mph | 80.0 mph |
A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Check the tire placard on the driver's door jamb and your owner's manual for the sizes your vehicle was built for. Confirm any size change with your vehicle's owner's manual or a tire professional.
Which vehicles use each size?
These vehicles list the size among their verified sizes, by trim. Open one to see all of its sizes.
Check it in the calculator
The calculator takes the same two sizes and shows the full comparison, or lets you swap either one for another size.
Open this comparison in the calculatorShop for 255/55R19 or 255/70R16 tires
Confirm the size on your tire sidewall or door placard first. These links open each store's own search; prices and stock are on their sites.
255/55R19
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Other comparisons with 255/55R19
Side-by-side dimensions and speedometer difference for sizes close to 255/55R19 in overall diameter.
- 255/55R19 vs 255/60R18+0.01% taller than 255/55R19
- 255/50R20 vs 255/55R19-0.01% shorter than 255/55R19
- 255/55R19 vs 255/65R17+0.03% taller than 255/55R19
- 235/65R18 vs 255/55R19-0.05% shorter than 255/55R19
- 235/55R20 vs 255/55R19+0.45% taller than 255/55R19
Other comparisons with 255/70R16
Side-by-side dimensions and speedometer difference for sizes close to 255/70R16 in overall diameter.
- 255/65R17 vs 255/70R16-0.01% shorter than 255/70R16
- 255/60R18 vs 255/70R16-0.03% shorter than 255/70R16
- 255/50R20 vs 255/70R16-0.05% shorter than 255/70R16
- 235/65R18 vs 255/70R16-0.09% shorter than 255/70R16
- 235/60R19 vs 255/70R16+0.16% taller than 255/70R16
You might also need
- Digital tire pressure gauge (Amazon search, opens in a new tab)
Check your tire pressure against the number on your door placard.
- Portable tire inflator (Amazon search, opens in a new tab)
Top up a low tire at home without a trip to the gas station.
- Tire tread depth gauge (Amazon search, opens in a new tab)
Measure how much tread is left before you decide to replace.
- Lug wrench or torque wrench (Amazon search, opens in a new tab)
Useful for rotations and tire changes; follow the torque spec in your owner's manual.
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