Units To lays out acceleration units one to a row and amounts one to a column. Opened at standard gravities, it reads any amount of them at once in metres per second squared, feet per second squared, gals, kilometres per hour per second, miles per hour per second and every other acceleration unit, even 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.