305/55R20 vs 295/55R20

305/55R20 vs 295/55R20: Comparision Size Chart


305/55R20 (Tire 1)295/55R20 (Tire 2)Difference
Tire Size In Inches33.2X12R2032.8X11.6R20
Diameter33.21"843.5 mm32.78"832.5 mm-1.3%
Tread Width12305 mm11.6"295 mm-3.28%
Rim Diameter20"508 mm20"508 mm0%
Sidewall Height6.6"167.75 mm6.39"162.25 mm-3.28%
Circumference104.33"2649.93 mm102.98"2649.93 mm-1.3%
Revs/Mile607.3 Revs/Mile615.27 Revs/Mile+7.97
Revs/Kilometer377.36 Revs/Mile382.31 Revs/Mile+4.95
Tire 1 Front View
12"
33.21"
Tire 2 Front View
12"
32.78"
Tire 1 Side View
Tire 1 Wheel
Circumference 1
104.33"
20"
6.6"
607.3 Revs/Mile
Tire 2 Side View
Tire 2 Wheel
Circumference 2
102.98"
20"
6.39"
615.27 Revs/Mile

Speedometer Error

305/55R20 (Mph)295/55R20 (Mph)
2019.74
3534.55
5049.35
6564.16
8078.96
9088.83
10098.7

295/55R20 vs 305/55R20: Gas Mileage & Performance Comparison

* Below is a comparison table. Assuming 2 tires of the same manufacturer, material and tested on the same road conditions.

305/55R20295/55R20
Wet/Snowy RoadsReduced TractionBetter Traction
Rough TerrainSmoother RideReduced Stability
Handling/SteeringBetterLess Responsive
Gas MileageBetterGood
Road NoiseQuietQuieter
CostMore ExpensiveLess Expensive

Can You Replace The 305/55R20 With The 295/55R20?

Yes, both tires have the same rim diameter, and the 295/55R20 has a smaller overall diameter than the 305/55R20 which is only 1.32% (0.43-inch), it is the allowable margin (±3%).

When you want to replace a different tire size, as a rule, for the rim diameter, you will need to be sure that your tires and rims are an exact match, e.g. a 305/55R20 tire will only fit on a 20″ diameter rim.

You Can check our tools and charts below to find your size:

*Disclaimer: The information provided on the tire size is for general informational purposes only. We recommend that you consult a certified tire specialist or National Highway Traffic Safety Administration (NHTSA) sets specific guidelines for tires used on vehicles.


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Jamie Hicks

Sullivan Kane

Tire Technician at TireSizesCalculator

Sullivan is a Tire Technician specializing in tire repair at TireSizesCalculator. With over 6 years of experience in the industry, Sullivan has become an expert in tire repair, maintenance & installation.


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