175/70R15

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 175/70R15 tire size features an overall diameter of 24.65 inches, a section width of 6.9 inches (175mm), and rotates 818 times per mile. It is a standard factory tire fitment on 2+ vehicle models including Saab 900.

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Physical Dimensions & Specs

Overall Diameter

24.65"

626.1 mm

Section Width

175 mm

6.89" wide

Sidewall Height

4.82"

122.4 mm (70% aspect)

Revolutions / Mile

818

Circumference: 77.43"

Rim Diameter

15"

Wheel size

Recommended Rim Width

4.4" - 6.1"

Optimal rim width range

Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 175/70R15 against any proposed tire size below:

Popular Comparisons:
Tire 1 (Stock / Base)175/70R15
Overall Height:24.6"
Sidewall:4.8"
Revs/Mile:818
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682

Visual Tire & Wheel Comparison

Tire 124.6" HeightTire 229.6" Height

Speedometer Variance

+20.0%At 60 mph reading, actual speed is 72.0 mph
IndicatedActual SpeedDiff
20 mph24.0 mph+4.0 mph
30 mph36.0 mph+6.0 mph
45 mph54.0 mph+9.0 mph
60 mph72.0 mph+12.0 mph
75 mph90.0 mph+15.0 mph
90 mph108.0 mph+18.0 mph

Fender & Suspension Clearance

Fitment Status: MODERATE RISK

Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.

Inner Strut Space:7.7mm LESS clearance
Outer Fender Push:Extends 17.7mm further out
Ride Height Delta:+2.46" ground clearance

Vehicles That Fit 175/70R15 (2+ Models)

Factory standard and optional vehicle fitments utilizing 175/70R15 tires:

YearMake & ModelTrim / VariantLookup Specs
1980Saab 900EMS, Automatic TransView 1980 900
1980Saab 900EMS, Standard TransView 1980 900