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265/40R22 vs 295/45R20 tire size comparison

265/40R22295/45R20

295/45R20 is 0.2 in (0.35%) taller than 265/40R22 and 1.2 in wider. They fit different wheels: 265/40R22 a 22-inch wheel and 295/45R20 a 20-inch wheel.

265/40R22 and 295/45R20 side by side

+0.2 in / +0.35%265/40R22: 30.3 in tall, solid line295/45R20: 30.5 in tall, dashed line265/40R22Width 10.4 in (265 mm)Sidewall 4.2 in (106 mm)295/45R20Width 11.6 in (295 mm)Sidewall 5.2 in (133 mm)
265/40R22 is drawn with a solid line and 295/45R20 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 265/40R22 and 295/45R20, with the difference (295/45R20 minus 265/40R22)
Measurement265/40R22295/45R20DifferenceDifference %
Section width10.4 in (265 mm)11.6 in (295 mm)+1.2 in (+30 mm)+11.32%
Sidewall height4.2 in (106 mm)5.2 in (133 mm)+1.0 in (+27 mm)+25.24%
Wheel (rim) diameter22.0 in (559 mm)20.0 in (508 mm)-2.0 in (-51 mm)-9.09%
Overall diameter30.3 in (771 mm)30.5 in (774 mm)+0.2 in (+3 mm)+0.35%
Circumference95.3 in (2422 mm)95.7 in (2430 mm)+0.4 in (+8 mm)+0.35%
Revolutions per mile665662-3-0.35%

Differences are 295/45R20 minus 265/40R22; percentages are relative to 265/40R22. These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.

The overall diameter differs by 0.35%, 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 265/40R22, the actual speed on 295/45R20 is about 60.2 mph. When it reads 60 mph on a vehicle built for 295/45R20, the actual speed on 265/40R22 is about 59.8 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, 265/40R22 against 295/45R20
Speedometer readsActual on 295/45R20 (built for 265/40R22)Actual on 265/40R22 (built for 295/45R20)
20 mph20.1 mph19.9 mph
30 mph30.1 mph29.9 mph
40 mph40.1 mph39.9 mph
50 mph50.2 mph49.8 mph
60 mph60.2 mph59.8 mph
70 mph70.2 mph69.8 mph
80 mph80.3 mph79.7 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

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Shop for 265/40R22 or 295/45R20 tires

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Other comparisons with 265/40R22

Side-by-side dimensions and speedometer difference for sizes close to 265/40R22 in overall diameter.

Other comparisons with 295/45R20

Side-by-side dimensions and speedometer difference for sizes close to 295/45R20 in overall diameter.

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