Skip to main content
TireShopper

245/45R19 vs 295/35R20 tire size comparison

245/45R19295/35R20

295/35R20 is 0.4 in (1.62%) taller than 245/45R19 and 2.0 in wider. They fit different wheels: 245/45R19 a 19-inch wheel and 295/35R20 a 20-inch wheel.

245/45R19 and 295/35R20 side by side

+0.4 in / +1.62%245/45R19: 27.7 in tall, solid line295/35R20: 28.1 in tall, dashed line245/45R19Width 9.6 in (245 mm)Sidewall 4.3 in (110 mm)295/35R20Width 11.6 in (295 mm)Sidewall 4.1 in (103 mm)
245/45R19 is drawn with a solid line and 295/35R20 with a dashed line. In each drawing both tires are to the same scale; the tread shoulder and bead curves are simplified. The table below has the same numbers.
Dimensions of 245/45R19 and 295/35R20, with the difference (295/35R20 minus 245/45R19)
Measurement245/45R19295/35R20DifferenceDifference %
Section width9.6 in (245 mm)11.6 in (295 mm)+2.0 in (+50 mm)+20.41%
Sidewall height4.3 in (110 mm)4.1 in (103 mm)-0.2 in (-7 mm)-6.35%
Wheel (rim) diameter19.0 in (483 mm)20.0 in (508 mm)+1.0 in (+25 mm)+5.26%
Overall diameter27.7 in (703 mm)28.1 in (715 mm)+0.4 in (+12 mm)+1.62%
Circumference87.0 in (2209 mm)88.4 in (2245 mm)+1.4 in (+36 mm)+1.62%
Revolutions per mile729717-12-1.60%

Differences are 295/35R20 minus 245/45R19; percentages are relative to 245/45R19. These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.

The overall diameter differs by 1.62%, which is within the common 3% rule of thumb.

The rule of thumb keeps a replacement size within about 3% of the original overall diameter. It covers diameter only. It is not a fit, load or safety check, because width, wheel diameter, load capacity and clearance matter too. Confirm any size change with your vehicle's owner's manual or a tire professional.

Speedometer difference

When the speedometer reads 60 mph on a vehicle built for 245/45R19, the actual speed on 295/35R20 is about 61.0 mph. When it reads 60 mph on a vehicle built for 295/35R20, the actual speed on 245/45R19 is about 59.0 mph. These figures assume the speedometer is accurate on the original size and use nominal dimensions, so treat them as estimates.

Actual speed for a given speedometer reading, 245/45R19 against 295/35R20
Speedometer readsActual on 295/35R20 (built for 245/45R19)Actual on 245/45R19 (built for 295/35R20)
20 mph20.3 mph19.7 mph
30 mph30.5 mph29.5 mph
40 mph40.6 mph39.4 mph
50 mph50.8 mph49.2 mph
60 mph61.0 mph59.0 mph
70 mph71.1 mph68.9 mph
80 mph81.3 mph78.7 mph

A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Check the tire placard on the driver's door jamb and your owner's manual for the sizes your vehicle was built for. Confirm any size change with your vehicle's owner's manual or a tire professional.

Which vehicles use each size?

These vehicles list the size among their verified sizes, by trim. Open one to see all of its sizes.

Check it in the calculator

The calculator takes the same two sizes and shows the full comparison, or lets you swap either one for another size.

Open this comparison in the calculator

Shop for 245/45R19 or 295/35R20 tires

Confirm the size on your tire sidewall or door placard first. These links open each store's own search; prices and stock are on their sites.

We may earn a commission if you buy through these links. It doesn't change the price you pay. Read our affiliate disclosure.

Other comparisons with 245/45R19

Side-by-side dimensions and speedometer difference for sizes close to 245/45R19 in overall diameter.

Other comparisons with 295/35R20

Side-by-side dimensions and speedometer difference for sizes close to 295/35R20 in overall diameter.

You might also need

Paid links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.