What is the difference between 235 70 r16 to 245 75 r16 in tire size?

235 / 70 / R16 is :

29 inches in diameter / section width 9.3 inches / section height 6.5 inches

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245 / 75 / R16 is :

30.5 inches in diameter / section width 9.6 inches / section height 7.2 inches