235/80R16 vs 235/85R16

235/80R16 vs 235/85R16: Comparision Size Chart


235/80R16 (Tire 1)235/85R16 (Tire 2)Difference
Tire Size In Inches30.8X9.3R1631.7X9.3R16
Diameter30.8"782.4 mm31.73"805.9 mm3%
Tread Width9.3235 mm9.3"235 mm0%
Rim Diameter16"406.4 mm16"406.4 mm0%
Sidewall Height7.4"188 mm7.86"199.75 mm6.25%
Circumference96.76"2457.98 mm99.68"2457.98 mm3%
Revs/Mile654.82 Revs/Mile635.63 Revs/Mile-19.19
Revs/Kilometer406.89 Revs/Mile394.96 Revs/Mile-11.93
Tire 1 Front View
9.3"
30.8"
Tire 2 Front View
9.3"
31.73"
Tire 1 Side View
Tire 1 Wheel
Circumference 1
96.76"
16"
7.4"
654.82 Revs/Mile
Tire 2 Side View
Tire 2 Wheel
Circumference 2
99.68"
16"
7.86"
635.63 Revs/Mile

Speedometer Error

235/80R16 (Mph)235/85R16 (Mph)
2020.6
3536.05
5051.5
6566.95
8082.4
9092.7
100103

235/85R16 vs 235/80R16: Gas Mileage & Performance Comparison

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

235/80R16235/85R16
Wet/Snowy RoadsBetter TractionReduced Traction
Rough TerrainReduced StabilitySmoother Ride
Handling/SteeringLess ResponsiveLess Responsive
Gas MileageGoodBetter
Road NoiseQuieterQuieter
CostLess ExpensiveMore Expensive

Can You Replace The 235/80R16 With The 235/85R16?

Yes, both tires have the same rim diameter, and the 235/85R16 has a bigger overall diameter than the 235/80R16 which is only 2.92% (0.93-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 235/80R16 tire will only fit on a 16″ 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.


Share on:

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.


Leave a Comment