Our Storage Choice calculator gives you to scale calculations in helping you decide which storage unit size fits best for you. Go ahead and try it. Our calculator accurately assesses a small closet to a large home worth of storage needs. You might need a 5x10 or 30x10, but you’ll never know until you check it out for yourself. Add your items to calculate, manage your inventory, and even print your own labels, all with our state-of-the-art storage calculator.