225/70R13 tire size in inches
A 225/70R13 tire measures
25.4" tall × 8.9" wide
6.20" sidewall on a 13" wheel. 794 revolutions per mile.
225/70R13 means a tire 225 mm wide, with sidewalls 70% as tall as the tire is wide (158 mm), radial construction (R), for a 13 inch wheel.
225/70R13 specs
| Overall diameter (height) | 25.40 inches (645 mm) |
|---|---|
| Section width | 8.86 inches (225 mm) |
| Sidewall height | 6.20 inches (158 mm) |
| Wheel (rim) diameter | 13 inches |
| Circumference | 79.8 inches (2,027 mm) |
| Revolutions per mile | 794 |
| Revolutions per kilometer | 493 |
| Approximate rim width | 6.0" to 7.5" |
| In inches (flotation style) | 25.4x8.9R13 |
| Aspect ratio | 70% |
Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.
Sizes that can replace 225/70R13 on a 13" wheel
These 13" sizes are within 3% of 225/70R13's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 185/85R13 | 25.38" | 7.28" | −0.1% | 60.0 mph | Compare |
| 195/80R13 | 25.28" | 7.68" | −0.5% | 59.7 mph | Compare |
| 245/65R13 | 25.54" | 9.65" | +0.5% | 60.3 mph | Compare |
| 205/75R13 | 25.11" | 8.07" | −1.2% | 59.3 mph | Compare |
| 215/75R13 | 25.70" | 8.46" | +1.2% | 60.7 mph | Compare |
| 235/65R13 | 25.03" | 9.25" | −1.5% | 59.1 mph | Compare |
| 205/80R13 | 25.91" | 8.07" | +2.0% | 61.2 mph | Compare |
| 235/70R13 | 25.95" | 9.25" | +2.2% | 61.3 mph | Compare |
| 215/70R13 | 24.85" | 8.46" | −2.2% | 58.7 mph | Compare |
| 195/85R13 | 26.05" | 7.68" | +2.6% | 61.5 mph | Compare |
| 175/85R13 | 24.71" | 6.89" | −2.7% | 58.4 mph | Compare |
| 185/80R13 | 24.65" | 7.28" | −2.9% | 58.2 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 235/40R18 | 18" | 25.40" | 0.0% | Compare |
| 305/35R17 | 17" | 25.41" | 0.0% | Compare |
| 325/25R19 | 19" | 25.40" | 0.0% | Compare |
| 165/80R15 | 15" | 25.39" | 0.0% | Compare |
| 275/25R20 | 20" | 25.41" | 0.0% | Compare |
| 265/45R16 | 16" | 25.39" | 0.0% | Compare |
| 225/25R21 | 21" | 25.43" | +0.1% | Compare |
| 265/50R15 | 15" | 25.43" | +0.1% | Compare |
| 195/55R17 | 17" | 25.44" | +0.2% | Compare |
| 205/40R19 | 19" | 25.46" | +0.2% | Compare |
| 265/40R17 | 17" | 25.35" | −0.2% | Compare |
| 215/50R17 | 17" | 25.46" | +0.2% | Compare |
One size up or down
- 215/70R13narrower: 24.9" × 8.5"
- 235/70R13wider: 26.0" × 9.3"
- 225/65R13lower profile: 24.5" × 8.9"
- 225/75R13taller sidewall: 26.3" × 8.9"
Compare 225/70R13 with another size
Questions
- How tall is a 225/70R13 tire?
- A 225/70R13 tire is 25.4 inches tall (645 mm), calculated from the size. It is 8.9 inches wide with 6.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 225/70R13 mean?
- 225/70R13 means a tire 225 mm wide, with sidewalls 70% as tall as the tire is wide (158 mm), radial construction (R), for a 13 inch wheel.
- How many revolutions per mile does a 225/70R13 tire make?
- About 794 revolutions per mile, based on a circumference of 79.8 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 225/70R13 tire?
- Roughly 6.0" to 7.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 185/85R13 instead of 225/70R13?
- 185/85R13 is −0.02 inches (−0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.0 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.