How many steps does it take to convert the Nemesis Prime figure from robot to truck mode?

It converts between robot and truck mode in 46 steps.

What is the height of the Transformers The Last Knight Nemesis Prime action figure?

The action figure stands 8.5 inches (21.5 cm) tall in robot mode.

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Transformers The Last Knight Studio Series Leader Class Nemesis Prime Action Figure 8.5-Inch

THE LAST KNIGHT NEMESIS PRIME: Brainwashed by the evil Quintessa, Nemesis Prime is the dark alter-ego of Optimus Prime - now as a Studio Series Leader Class figure with movie-inspired deco
8.5-INCH LEADER CLASS FIGURE: Stands 8.5 inches (21.5 cm) tall in robot mode with intricate poseability for display or play
CONVERTS IN 46 STEPS: Converts between robot and truck mode in 46 steps for the most authentic Nemesis Prime transformation
4 ACCESSORIES IN BOTH MODES: Comes with sword, shield, blaster, and arm blade accessories. Includes figure, 6 pieces, and instructions
ARTICULATED FOR PLAY AND DISPLAY: Studio Series Transformers figures feature articulation for display-worthy poses or action-packed play. Ages 8 and up