Units To lays out acceleration units one to a row and amounts one to a column, so any amount reads in every unit at once: metres per second squared, feet per second squared, standard gravities, gals, kilometres per hour per second and miles per hour per second, and, just to be silly, cheetahs and Space Shuttles. Type an amount the way you would say it, lay out a range of amounts, and choose how many decimal places to show.