def microsecond_to_cm(delta_microseconds: float) -> float:
    """
    Convert ticks_diff(ticks_us(), ticks_us()) -> centimeters
    - Divide by 2 to (the sound wave went "out" then "back")
    - Divide by the speed of sound in microseconds

    Speed of sound: 343.2 meters/second = 1cm/29.1 microseconds

    :param float delta_microseconds: Pulse duration (microseconds)
    :returns float:
    """
    return (delta_microseconds / 2) / 29.1