155/70R14 tire size in inches

A 155/70R14 tire measures

22.5" tall × 6.1" wide

4.27" sidewall on a 14" wheel. 895 revolutions per mile.

155/70R14 means a tire 155 mm wide, with sidewalls 70% as tall as the tire is wide (109 mm), radial construction (R), for a 14 inch wheel.

22.5"14" rim4.3"6.1" wide
155/70R14: 22.5 inches tall, 6.1 inches wide, on a 14 inch rim, drawn to scale

155/70R14 specs

Overall diameter (height)22.54 inches (573 mm)
Section width6.10 inches (155 mm)
Sidewall height4.27 inches (109 mm)
Wheel (rim) diameter14 inches
Circumference70.8 inches (1,799 mm)
Revolutions per mile895
Revolutions per kilometer556
Approximate rim width4.0" to 5.5"
In inches (flotation style)22.5x6.1R14
Aspect ratio70%

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 155/70R14 on a 14" wheel

These 14" sizes are within 3% of 155/70R14's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
165/65R1422.44"6.50"−0.4%59.7 mphCompare
195/55R1422.44"7.68"−0.4%59.7 mphCompare
185/60R1422.74"7.28"+0.9%60.5 mphCompare
175/60R1422.27"6.89"−1.2%59.3 mphCompare
205/55R1422.88"8.07"+1.5%60.9 mphCompare
175/65R1422.96"6.89"+1.8%61.1 mphCompare
185/55R1422.01"7.28"−2.4%58.6 mphCompare
165/70R1423.09"6.50"+2.4%61.5 mphCompare
155/75R1423.15"6.10"+2.7%61.6 mphCompare
195/60R1423.21"7.68"+3.0%61.8 mphCompare

Same height on other wheel sizes (plus and minus sizing)

SizeWheelDiameterDifference
185/45R1616"22.56"+0.1%Compare
175/55R1515"22.58"+0.2%Compare
185/65R1313"22.47"−0.3%Compare
215/45R1515"22.62"+0.3%Compare
205/40R1616"22.46"−0.4%Compare
175/70R1313"22.65"+0.5%Compare
205/35R1717"22.65"+0.5%Compare
195/50R1515"22.68"+0.6%Compare
205/60R1313"22.69"+0.6%Compare
145/85R1313"22.70"+0.7%Compare
195/35R1717"22.37"−0.8%Compare
165/75R1313"22.74"+0.9%Compare

One size up or down

Compare 155/70R14 with another size

With 165/70R14 tires, when your speedometer says 60 mph you are really going

61.5 mph

165/70R14 is +0.55 inches (+2.4%) in overall diameter. That is within the 3% most shops and makers allow.

155/70R14165/70R14Difference%
Overall diameter22.54"23.09"+0.55"+2.4%
Section width6.10"6.50"+0.39"+6.5%
Sidewall height4.27"4.55"+0.28"+6.5%
Circumference70.82"72.55"+1.73"+2.4%
Revolutions per mile894.6873.3−21.4−2.4%

Questions

How tall is a 155/70R14 tire?
A 155/70R14 tire is 22.5 inches tall (573 mm), calculated from the size. It is 6.1 inches wide with 4.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 155/70R14 mean?
155/70R14 means a tire 155 mm wide, with sidewalls 70% as tall as the tire is wide (109 mm), radial construction (R), for a 14 inch wheel.
How many revolutions per mile does a 155/70R14 tire make?
About 895 revolutions per mile, based on a circumference of 70.8 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 155/70R14 tire?
Roughly 4.0" to 5.5". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 165/65R14 instead of 155/70R14?
165/65R14 is −0.10 inches (−0.4%) in overall diameter, so at an indicated 60 mph you would be doing 59.7 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

Browse