Standard units play an important role in identifying the optimum check of how much quantity has been consumed in which ratio. For example a person travelling through car needs to know the miles covered so that he can have a check on the miles covered and can forecast the time in which he will cover more miles to reach to the target destination. Standard units have their usage in daily activities such as buying or selling sugar, consuming food items, consuming calories, covering distances, estimating the lengths for furniture for giving orders to carpenters, measuring the size for designing clothes, time duration to complete a round of walk in an exercise etc.
